Chambersite
- Barbers Hill salt dome
- Mont Belvieu
- Chambers County
- Texas
- U.S.A.
- 6.5 by 6.5 by 6.5 mm – Thumbnail specimen (fits into a 3 cm cube)
Chambersite is a manganese borate originally described from Texas by Honea and Beck (1962). This is a perfect tetrahedral crystal, with a smokey purple color, measuring 6.5 mm on edge. A choice example without internal fracturing; leaving the color rich and intense. Occasionally faceters cut these crystals into exotic gemstones; this mineral has a Mohs hardness of 7.
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