The Specimen Library / History, Lore & Tradition
Corundum / Ruby & Sapphire · Human Story
Aluminum oxide / mineral species and gem varieties
A closer look beyond the specimen label.
← Return to Corundum / Ruby & Sapphire
The human story, examined
Documented history, historical belief and contemporary crystal practice are different parts of the story. Each is identified here on its own terms.
The human story
Ruby names red gem corundum; sapphire covers the other gem colors. Color boundaries and trade descriptions need care.
Reading a name carefully
What has the report established: species, natural origin, treatment or geographic origin? Read its actual scope.
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.
Adjacent drawers
Related Specimens
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