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- Gemstone (7411 bytes)
1: ...e, single-crystal [[rhodochrosite]], but are exhibited in museums and are sought by collectors of mine...
3: ...bles: made by tumbling rough rock with abrasive grit, in a rotating drum. The biggest pebble here is 4...
5: ...clinic]]. Another term used is [[crystal habit|habit]], the form the gem is usually found in, for exam...
7: ...shenite (colorless), heliodor (yellow), and morganite (pink) are all varieties of the mineral species ...
9: ...[[fracture]], a certain [[luster]]. They may exhibit [[pleochroism]] of a sort, or [[double refraction...
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