Jenn's crystal guide

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Rainbow iridescence from interference and diffraction of light in the fine, closely packed nacre layers. Haliotis species produce the highest degree of iridescence among shells.

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The ambient-stable silver sulfide. Essential for Ag-suite collectors. Argentite excluded as separate ambient species (paramorph of acanthite).

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Long prisms with a triangular cross-section, rounded sides and strong striations parallel to the main axis; vitreous lustre. Quite rare.

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Actinolite is A calcium-magnesium-iron amphibole in the tremolite-actinolite-ferroactinolite series. Traditionally associated with grounding, resilience, balance, patience, and renewal. Collectors and practitioners may keep Actinolite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Adamite is Zinc arsenate hydroxide. Traditionally associated with motivation, joy, confidence, creativity, and emotional expression. Collectors and practitioners may keep Adamite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Aegirine is A sodium-iron pyroxene. Traditionally associated with focus, boundaries, confidence, grounding, and clear direction. Collectors and practitioners may keep Aegirine for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Signature black Ti-silicate of peralkaline complexes. Complements aegerine, eudialyte, and other alkaline-complex minerals. Greenland and Pantelleria specimens classic.

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Name derives from the Achates (Dirillo) River in southwestern Sicily, the originally reported locality. Slightly porous, so it dyes easily; horizontally banded material has long been cut for cameos and engravings.

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Used in crystal collections and jewelry for its unique fossil patterning and earthy colors. Popular among collectors who appreciate geological history in gemstone form.

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Ag–Se–S species completing the naumannite–aguilarite selenium-silver suite.

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Pb–Cu–Bi sulfosalt completing the cosalite–aikinite–bismuthinite suite.

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Hydrated copper aluminum silicate with a zeolite-like layered structure alternating with octahedral copper-oxide sheets. Traditionally associated with: gentle communication and emotional clarity, echoing its soft turquoise-blue-green color. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Archaeologists and the stone industry also apply 'alabaster' to a fine-grained banded calcite; buyers should be told which of the two a given piece is.

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Albite is The sodium-rich end member of the plagioclase feldspar series. Traditionally associated with clarity, adaptability, perspective, organization, and calm. Collectors and practitioners may keep Albite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Alexandrite is A color-change variety of chrysoberyl. Traditionally associated with adaptability, confidence, emotional balance, renewal, and thoughtful judgment. Collectors and practitioners may keep Alexandrite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Mn humite-group member for Franklin and North Carolina Mn-deposit collectors. Complements humite (already cataloged) as a distinct Mn-dominant species.

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Completes the glaucodot–alloclasite dimorph pair. collector mineral for Co suites.

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Isometric, typically dodecahedral to trapezohedral crystals in deep red to brownish-red, forming in metamorphic rocks. Star garnet — almandine with a rutile-inclusion star — is the Idaho state gemstone.

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Pb telluride anchor for Au–Te suites. Complements hessite and nagyagite.

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Mineralogically and historically interesting — mined for alum production since the 15th century. Found in volcanic fumarole environments. More commonly a scientific study specimen than a decorative crystal.

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A turquoise green stone with white streaks and a calming matte finish. Traditionally associated with truth and harmony. Many people use it in personal practice for soothing tense situations and finding balance.

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A warm golden fossilized resin with ancient inclusions and a gentle glow. Traditionally associated with warmth and ancestral connection. Many people use it in personal practice for comfort during difficult times and connecting with ancient wisdom.

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Amblygonite is A lithium-aluminum phosphate fluoride in the amblygonite group. Traditionally associated with quieting mental overload, approaching change steadily, and making decisions without unnecessary pressure. Collectors and practitioners may keep Amblygonite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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A purple quartz with translucent to opaque coloring and pointed formations. Traditionally associated with spiritual awareness and inner peace. Many people use it in personal practice for meditation and quiet reflection.

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A quartz with both purple amethyst and yellow citrine in one crystal. Traditionally associated with balance and the union of spiritual and material worlds. Many people use it in personal practice for finding balance between intuition and action.

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Iridescent reds, oranges, greens and blues; occurs as either 'fractured' material resembling stained glass or continuous 'sheet' material.

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Chambered, coiled, ribbed spiral shells, each chamber sealed by a septum as the animal grew; often cut and polished to show the spiral cross-section.

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Popular with zeolite and volcanic mineral collectors for its beautiful trapezohedron crystal form. Found alongside other zeolites and makes distinctive specimens. Used in crystal collections for its orderly cubic appearance.

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Andalusite is Aluminum silicate, Al2SiO5, often pink, brown, yellow, green, white, or gray. Traditionally associated with staying grounded while considering different viewpoints, making thoughtful choices, and remaining steady during change. Collectors and practitioners may keep Andalusite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Sodium-calcium plagioclase feldspar with an albite:anorthite molar ratio of roughly 70:30 to 50:50, triclinic. Traditionally associated with: warmth, courage, and confident self-expression, echoing its sunlit orange-red coloration in gem-quality material. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Grey to dark grey, dense, often with visible plagioclase or pyroxene phenocrysts.

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Occurs in skarns, chlorite schists, serpentinites and alkalic igneous rocks; colours run yellow and honey-brown through green (demantoid) to black (melanite). Crystals are commonly dodecahedral or trapezohedral.

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A soft blue stone with a gentle opaque finish and a calming presence. Traditionally associated with gentle communication and peaceful connection. Many people use it in personal practice for soothing worry and fostering kindness.

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Specialist collector mineral prized for its diamond-like adamantine luster and gemmy transparent crystals. Faceted anglesite gems are rare collector stones. Very heavy for visual size (SG 6.3) makes a memorable heft demonstration. Moroccan specimens produce the largest crystals known.

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Massive, granular to fibrous material, colourless to white, grey, or pale blue-grey. Fine-grained pale blue-grey Peruvian material is marketed under the trade name 'Angelite.'

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Calcium iron magnesium carbonate (Ca(Fe,Mg,Mn)(CO3)2), trigonal, dolomite-group mineral forming a series with dolomite and kutnohorite. Traditionally associated with: steady grounding and patient growth, reflecting its formation over long geological time within sedimentary and hydrothermal rock. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Attractive apple-green secondary mineral prized by collectors of oxidized nickel-cobalt suites. Companion to erythrite (cobalt bloom). Lavrion crystals are the best crystallized examples.

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Anorthite is The calcium-rich end member of the plagioclase feldspar series. Traditionally associated with staying grounded during transitions, creating structure, and managing responsibilities consistently. Collectors and practitioners may keep Anorthite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Meaningful as the orthorhombic amphibole counterpart to cummingtonite. Collect only non-fibrous crystallized or massive specimens. Complements riebeckite and other amphiboles already flagged for asbestos risk.

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Magnesium silicate (Mg3Si2O5(OH)4), monoclinic, the higher-temperature member of the serpentine group, forming only above roughly 250°C — distinct from the lower-temperature serpentine polymorphs chrysotile and lizardite. Traditionally associated with: grounded transformation and protection, echoing its formation from the metamorphic reworking of ancient oceanic rock. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Granular bright green chrome-bearing zoisite with minor dark pargasite and conspicuous coarse purplish-red corundum porphyroblasts, sometimes several centimetres across.

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Small rounded black obsidian pebbles with a smooth glassy surface. Traditionally associated with gentle comfort during difficult transitions. Many people use it in personal practice for emotional support and quiet grounding.

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A blue-green stone with a glassy luster and hexagonal formation. Traditionally associated with clarity and personal growth. Many people use it in personal practice for setting clear intentions and achieving goals.

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Apophyllite is A mineral group rather than one single species; many specimens are fluorapophyllite-(K). Traditionally associated with quiet reflection, openness, and approaching spiritual practices calmly. Collectors and practitioners may keep Apophyllite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Aqua Aura Quartz is natural quartz with a vapor-deposited gold coating, not a natural blue quartz variety. Product copy must state that the quartz is gold-vapor coated. Collectors may keep it for study and display. It is not medical care.

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A pale blue-green stone with watery transparency and calming presence. Traditionally associated with calm and clear communication. Many people use it in personal practice for soothing energy and speaking with ease.

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A cluster of white or brown star-like formations with a warm earthy feel. Traditionally associated with earth connection and conservation of energy. Many people use it in personal practice for grounding excess energy and returning to practical focus.

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Prized by collectors for highly lustrous elongated black prismatic crystals from Malawi, and for polished "firework stone" cabochons with blue schiller reflections. Named for the discoverer of lithium. Member of the alkali amphibole group. Found at renowned alkaline pegmatite localities worldwide including Mont Saint-Hilaire.

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Ge end-member of the argyrodite group. Complements canfieldite (Sn). Rare and scientifically significant.

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Primary As ore mineral. Essential for sulfosalt/arsenide educational suites. Display-only

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Astrophyllite is A complex potassium-sodium iron-titanium silicate, commonly bronze-gold and bladed. Traditionally associated with recognizing personal strengths, accepting change, and moving forward with clearer purpose. Collectors and practitioners may keep Astrophyllite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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A combination of green serpentine and purple stichtite in one stone. Traditionally associated with ancient wisdom and gentle heart-centered awareness. Many people use it in personal practice for connecting with ancestral knowledge and compassionate understanding.

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Augelite is An aluminum phosphate hydroxide. Traditionally associated with speaking honestly, organizing priorities, and acting confidently without becoming impulsive. Collectors and practitioners may keep Augelite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Stubby dark green-black to brownish-black prismatic crystals or grains with two cleavages at near-90 degrees.

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Among the most visually enchanting secondary minerals in collector circles. Mexican specimens from Mapimí (Ojuela mine) produce the finest feathery blue-green formations. Strictly a display mineral due to extreme fragility. Can serve as an indicator mineral for zinc deposits.

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A green stone with a shimmering finish and sparkling mineral inclusions. Traditionally associated with growth and heart-centered energy. Many people use it in personal practice for personal development and emotional openness.

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Axinite is A mineral group including axinite-(Fe), axinite-(Mn), axinite-(Mg), and tinzenite. Traditionally associated with handling change calmly, improving cooperation, and following through on difficult responsibilities. Collectors and practitioners may keep Axinite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Rarer in gem quality than Axinite-(Fe). Honey-yellow Franklin, New Jersey, fluorescent specimens and Japanese Obira Mine crystals are particularly sought. Faceted stones above 5 carats are exceptional rarities. Complements Axinite-(Fe) already in the catalog as a meaningfully distinct manganese end-member of the axinite group.

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A deep blue stone with a velvety luster and intense color. Traditionally associated with insight and inner vision. Many people use it in personal practice for deepening meditation and expanding awareness.

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Barite is Barium sulfate; the official mineral spelling is baryte, while barite is common in the United States. Traditionally associated with grounding, stability, clear purpose, and confidence. Collectors and practitioners may keep Barite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Dense, dark grey to black, sometimes vesicular or amygdaloidal with secondary zeolites, epidote or prehnite filling cavities.

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Bastnäsite-(Ce) is A cerium-dominant rare-earth carbonate fluoride. Traditionally associated with recognizing personal value, focusing on worthwhile goals, and adapting without losing direction. Collectors and practitioners may keep Bastnäsite-(Ce) for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Completes the core Lengenbach sartorite-group set with sartorite and dufrénoysite.

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Benitoite is A rare blue barium-titanium cyclosilicate. Traditionally associated with expressing ideas clearly, trusting judgment, and bringing greater awareness to goals. Collectors and practitioners may keep Benitoite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Pavonite-series Ag–Bi sulfosalt complementing pavonite.

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Distinct Fe–Sb sulfide for antimony-suite collectors. Important lookalike teaching specimen versus stibnite. Do not confuse name with berthierine.

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Trace chromophores produce the named varieties: emerald (green), aquamarine (sky-blue to sea-green), heliodor (golden yellow), morganite (pink) and red beryl. Typically hexagonal prisms.

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Beryllonite is Sodium beryllium phosphate. Traditionally associated with sorting complex thoughts, understanding new information, and explaining ideas clearly. Collectors and practitioners may keep Beryllonite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Dark brown to black, splits into elastic sheets on one perfect basal cleavage, pearly to submetallic lustre.

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Primary Bi sulfide. Complements stibnite as the Bi vs. Sb analogue — meaningfully distinct.

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A dark stone with silver adularescence and a mysterious depth. Traditionally associated with new moon energy and planting seeds of intention. Many people use it in personal practice for setting intentions and embracing the mystery of new beginnings.

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Black opal is a dark-bodied variety of opal, a hydrated silica mineraloid, not a crystalline mineral species. It is distinct from the generic Opal catalog entry by body-tone grade. Doublet and triplet composites must be disclosed. Dark-body Ethiopian opal is not Lightning Ridge black opal. Claim Lightning Ridge origin only with documentation. Collectors may keep it for study and display. It is not medical care.

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A deep black stone with a matte or glossy striated finish. Traditionally associated with grounding and protection. Many people use it in personal practice for stability and energetic boundaries.

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A dark green stone with red jasper spots resembling blood droplets. Traditionally associated with courage and vitality. Many people use it in personal practice for facing challenges with strength and determination.

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A soft blue stone with a gentle opaque finish and a calming presence. Traditionally associated with peaceful communication and emotional soothing. Many people use it in personal practice for calming anxious thoughts and speaking with ease.

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Pale blue to blue-grey, translucent, waxy luster. The blue colour is not from a chromophore but from the Tyndall effect (light scattering by colloid-sized particles) — transmitted light looks yellowish or reddish rather than blue.

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Blue John is a banded locality variety of fluorite from Derbyshire, not a separate species. Genuine Blue John requires provenance. Do not apply the name to generic dyed or banded fluorite. Parent Fluorite already exists. Collectors may keep it for study and display. It is not medical care.

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A pale blue stone with delicate white banding resembling lace. Traditionally associated with gentle communication and peaceful expression. Many people use it in personal practice for calming nerves before speaking and finding their voice.

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Popular gemstone used by many as a companion for clear communication, focus, and calming energy.

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Among the most iconic and immediately recognizable minerals in existence — deep indigo-blue perfect cubes found almost exclusively at one mine on the Baja California peninsula. The epitaxial three-mineral specimens (boleite + cumengeite + pseudoboleite) are considered among the most complex natural mineral formations and are displayed in major museum collections. Advanced collector mineral with high market value for fine specimens.

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Hydrated sodium borate (Na2B4O7·10H2O), monoclinic. Traditionally associated with: clarity and cleansing of communication, reflecting its long industrial history as a cleaning and purifying agent. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Fresh surfaces are coppery bronze-brown, but it tarnishes rapidly to iridescent purples and blues. Decomposition product is idaite.

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A banded agate with gray, pink, and white layers from Botswana. Traditionally associated with comfort and gentle emotional support. Many people use it in personal practice for finding comfort during lonely times and emotional transitions.

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Collector mineral for fibrous metallic sprays and rare ring forms. Companion to jamesonite — often both present in the same deposits.

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Cut with the natural ironstone host rock left in place as a backing; shows exceptional play-of-color against a dark matrix, often free-form because the cutter follows the seam.

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Lead copper antimony sulfosalt (PbCuSbS3), orthorhombic, bournonite group forming a series with seligmannite. Traditionally associated with: interlocking balance and cooperation, echoing its distinctive interlocking cogwheel-twinned crystal form. Collectors and practitioners may keep this specimen for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Bowenite is a dense antigorite/serpentine-group variety. New Jade is a misnomer and does not make the material jade. Parent Serpentine and Antigorite already exist. Collectors may keep it for study and display. It is not medical care.

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Brazilianite is A sodium-aluminum phosphate hydroxide known for yellow-green gem material. Traditionally associated with approaching challenges positively, maintaining motivation, and expressing creative ideas confidently. Collectors and practitioners may keep Brazilianite for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Brecciated Jasper is Variety of jasper (microcrystalline SiO2) fractured by tectonic forces and re-cemented by silica-rich fluids; angular fragment-in-matrix mosaic texture. In traditional crystal lore, it is associated with In crystal traditions, brecciated jasper is associated with grounding, vitality, and mental clarity. These are editorial beliefs, not medical claims.. Collectors and practitioners may keep Brecciated Jasper for study, display, meditation, journaling, or as a personal symbolic reminder — not as medical care.

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Complements nickeline (NiAs) as the antimonide analogue — meaningfully distinct chemistry. Classic Cobalt district collector mineral.