The Specimen Library / Under the Loupe
Carnelian · Science
Chalcedony / orange-to-red variety
A closer look beyond the specimen label.
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The material, examined
What the name tells you
A label can legitimately describe the color without proving it is untreated. That distinction is especially helpful for old beads, carvings and inherited tumbles whose original purchase information is gone.
A useful question at the counter
Is “carnelian” a material identification, and is the color known to be untreated? These are separate questions.
A note for your collection
Keep unknown treatments away from solvents and extreme heat. Protect carved surfaces and drill holes from knocks.
Sources & further reading
References are labeled by role. A source documenting a belief is not evidence of a medical or mineralogical effect. Reflection prompts are C&C editorial suggestions.
- Gem-A: Types of chalcedony
- C&C original crystal-practice index, 2017 archive: contemporary C&C teaching and symbolic associations.
- Handbook: Quartz properties, aggregate behavior may differ
Adjacent drawers
Related Specimens
The cabinet