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Collection Tier:
Tier 3

Rocks and Minerals ➔ Corundum

Identifier:
391058
Description:
Corundum is an oxide mineral that is one of the hardest minerals on Earth. It is often gray, white, or brown in color but gemstone varieties include rubies and sapphires. 
Source:
Gift Of Given In Memory Of Les Jones
Maker/Donor
Berdeana Jones
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