How to Read a Crystal Listing Before You Buy

A checklist for reading crystal product pages: mineral name, locality, treatment, dimensions, exact-piece photos and the claims worth questioning.

Start with the actual mineral name

A trade name can be useful, but it should not replace mineral identity. “Angelite” is blue anhydrite. “Rainbow moonstone” is usually white labradorite. “Green onyx” in décor may be calcite.

Look for dimensions and weight

Photos can make a 40 g piece look enormous. A good listing gives measurements and weight, ideally with a hand or ruler for scale.

Exact piece or representative piece

For one-of-a-kind minerals, exact-piece photography is preferable. If the listing uses a representative photo, the variation should be explained clearly.

Treatment disclosure

Look for words such as heat-treated, irradiated, dyed, coated, stabilised, resin-filled, reconstructed or synthetic. None automatically means “bad”; non-disclosure is the bigger problem.

Locality and provenance

“Brazil” is useful but broad. Mine or district-level locality is better when genuinely documented. Do not reward invented precision: “exact mine unknown” is more credible than an unsupported story.

Beware meaningless grading

AAA, AAAAA and “museum grade” are often seller-created labels without a universal standard. Ask what measurable or visible features the grade represents.

Claims

Guaranteed wealth, health outcomes or protection should make you cautious. The most trustworthy listing usually spends more time describing the object than promising what it will do to your life.

How we approach crystal claims

We document traditional and contemporary crystal associations because readers search for them, but we do not present those beliefs as established medical, psychological or financial effects. For care and authenticity questions, mineral identity and treatment history come first.

About the editor

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Fans of Crystals articles are edited under our published research and sourcing standards.