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Image credit: Scott Brande
Unknown Samples
Unknown Samples
- representative of 'student grade' samples - NOT museum quality
- not all physical properties are demonstrated in all samples
- properties demonstrated limited to those viewable online (e.g., no TASTE!)
- no answer key on website
- additions considered upon email request
Unknowns in Simplified Classification
Unknowns in Simplified Classification
- Limited set of UNKNOWNS in RED boxes.
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Navigate to Samples
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