Amazonite / Amazonita
Blue-green microcline feldspar · tumbled stone
Blue-green microcline, documented Egyptian objects, and an original practice for truthful, measured expression.
Crystals A–Z — The Crystal Cabinet
THE BOOK OF SHADOWS · CRYSTAL CHAPTER
The crystal cabinet
A chapter for the stones we keep close. Discover mineral identity, history, care, and spiritual correspondences.
32 guides to explore
A
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F
G
H
J
L
M
N
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Open the illustrated crystal library · 32 stones
The crystal & stone library
32 stones to explore, arranged alphabetically. Each guide separates mineral identity and documented history from modern spiritual beliefs and our own suggested practices.
Amethyst / Amatista
Purple quartz (SiO₂) · tumbled stone
Purple quartz, documented gem history, and an original practice for layered clarity and measured attention.
Ametrine / Ametrino
Bicolor quartz (SiO₂) · tumbled stone
Purple-and-gold bicolor quartz from Bolivia and an original practice for holding two truths together.
Angelite / Angelita
Blue anhydrite (CaSO₄) · tumbled stone
Pale blue anhydrite from Peru, its documented modern trade name, and a quiet-listening practice.
Apatite / Apatita
Apatite group calcium phosphates · tumbled stone
A calcium-phosphate mineral group, a name rooted in careful identification, and an original practice for honest focus.
Apophyllite / Apofilita
Apophyllite-group hydrated silicates · crystal tip
A hydrated silicate group with brilliant faces, careful species limits, and an original practice for perspective and release.
Black Obsidian / Obsidiana Negra
Natural volcanic glass · tumbled stone
A natural volcanic glass, documented mirror and amulet histories, and an original practice for separating facts from interpretation.
Black Tourmaline / Turmalina Negra
Tourmaline group · tumbled stone
Tourmaline-group identity, a careful schorl distinction, and an original practice for grounded boundaries.
Bloodstone / Piedra de Sangre
Opaque chalcedony (quartz) · tumbled stone
Green chalcedony with red inclusions, carefully separated Roman lore, and an original practice for steady courage.
Blue Howlite / Howlita Azul
Blue-colored howlite · tumbled stone
Blue-colored howlite explained through mineralogy and gem-trade evidence, with an original practice for truthful labeling.
Blue Kyanite / Cianita Azul
Aluminum silicate (Al₂SiO₅) · rough blade
A bladed aluminosilicate shaped by high-pressure metamorphism and an original practice for aligning words with action.
Botswana Agate / Ágata de Botsuana
Banded chalcedony-rich silica · tumbled stone
Finely banded agate, documented material history, and an original practice for patient, layered progress.
Carnelian / Cornalina
Orange-red chalcedony (SiO₂) · tumbled stone
Orange-red chalcedony, documented ancient carving traditions, and an original practice for warm, deliberate courage.
Celestite / Celestina
Celestine, strontium sulfate (SrSO₄) · 3 unworked stones
Pale blue strontium sulfate, an eighteenth-century mineral name, and an original practice for calm, spacious communication.
Chalcopyrite / Calcopirita
Copper iron sulfide (CuFeS₂) · rough stone
Brass-yellow copper iron sulfide, a careful look at the peacock-ore trade name, and an original practice for grounded possibility.
Chrysocolla / Crisocola
Hydrated copper silicate material · rough stone
Blue-green copper-zone material, a name older than its modern mineral definition, and an original practice for truthful expression.
Citrine / Citrino
Yellow quartz (SiO₂) · one stone
Yellow quartz, a transparent look at natural rarity and common heat treatment, and an original practice for steady creative warmth.
Clear Quartz / Cuarzo Transparente
Colorless quartz (SiO₂) · tumbled stone
Colorless rock crystal, natural inclusions, documented material history, and an original practice for precise intention.
Fluorite / Fluorita
Calcium fluoride (CaF₂) · rough stone
Colorful cubic calcium fluoride, the history behind fluorescence, and an original practice for sorting what deserves attention.
Garnet / Granate
Garnet-group silicates · tumbled stone
A varied silicate family, a documented Roman carved gem, and an original practice for keeping a chosen promise.
Green Aventurine / Aventurina Verde
Aventurescent quartzite · tumbled stone
Green quartz material with mica-driven sparkle and an original practice for recognizing practical opportunity.
Hematite / Hematita
Iron oxide (Fe₂O₃) · tumbled stone
Iron oxide, a documented ancient cylinder seal, and an original practice for practical boundaries and steadiness.
Jet / Azabache
Organic gem material from fossilized wood · tumbled stone
An organic gem material shaped from ancient wood, Whitby craft history, and an original remembrance practice.
Labradorite / Labradorita
Plagioclase feldspar · tumbled stone
A layered feldspar, the optics behind labradorescence, and an original practice for meeting change with discernment.
Lapis Lazuli / Lapislázuli
Lazurite-calcite-pyrite rock · tumbled stone
A blue rock aggregate, a documented 6,500-year material history, and an original practice for truthful expression.
Larvikite / Larvikita
Monzonitic igneous rock · tumbled stone
Norway’s blue-flashing heritage rock, documented geology and architecture, and an original perspective-testing practice.
Malachite / Malaquita
Copper carbonate hydroxide · tumbled stone
A banded copper carbonate mineral, a documented New Kingdom object, and an original practice for mapping change.
Moss Agate / Ágata Musgosa
Dendritic chalcedony (SiO₂) · tumbled stone
Translucent chalcedony with mineral dendrites, no literal moss, and an original practice for patient growth.
Nephrite Jade / Jade Nefrita
Fine-grained amphibole aggregate · tumbled stone
A tough amphibole aggregate, a documented Liangzhu nephrite disk, and an original practice for sustained care.
Rainbow Moonstone / Piedra Luna Arcoíris
Pale labradorite feldspar · tumbled stone
A trade name for pale labradorite feldspar with shifting color and an original practice for keeping possibility grounded.
Rose Quartz / Cuarzo Rosa
Pink quartz (SiO₂) · tumbled stone
Usually massive pink quartz, carefully sourced history, and an original practice of reciprocal care and boundaries.
White Howlite / Howlita Blanca
Calcium borosilicate hydroxide · white stone
A white borosilicate, Henry How's documented 1868 description, and an original practice for leaving room before replying.