The Crystal Guide
Every stone in our library has a name, an origin, and a story we can verify. A decade of research behind it. A transparency score on every entry.
Use it to look up the meanings or properties of a crystal you already own, or to learn what to look for before you buy. We lead with the geology and where the stone came from, then cover what people have traditionally worked with it for. We tell you what we know and we tell you what we don't.


































































































































Go Deeper: The Crystal Knowledge Library
Plain-English guides to buying, identifying, and caring for crystals, written from the stones we actually handle.
Authenticity & Identification
- Crystal shop red flags: ten signs a seller can't be trusted
- How to identify an unknown crystal, step by step
- The streak test: the cheapest ID check that works
- Made-up crystal names: Andara, Super Seven, and more
- Labradorite vs Andara glass: the flash that isn't real
- Dropshipped crystals: same stone, triple the price
- How to spot a fake crystal cluster
Color Comparisons
- Garnet, red jasper, or carnelian? The red stones
- Carnelian, sunstone, or orange calcite? The orange stones
- Citrine, tiger's eye, or pyrite? The yellow and gold stones
- Aventurine, jade, malachite, or moss agate? The green stones
- Lapis, sodalite, azurite, or dumortierite? The blue stones
- Amethyst, fluorite, lepidolite, or charoite? The purple stones
- Hematite, labradorite, or howlite? The gray stones
- Why one stone can hold two or more colors
- Cat's eye and star stones: what makes the light move
Care & Science
- How to clean dust and grime from crystals safely
- Crystal water bottles and elixirs: what's safe to soak
- Crystal hardness: which stones survive daily wear
- Crystal luster: what a stone's shine really tells you
- Are crystals radioactive? A calm, accurate answer
- Crystal, mineral, rock, or gemstone? What the words mean
- Which crystals fade in sunlight, and which are safe