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- Availability
- Sold
- Featured
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- Locality
- Butte dist., Silver Bow Co., Montana, United States
- Formula
- Mn4Be3(SiO4)3S
- Size
- Thumbnail 3x2x3cm
Helvite according to Jenkins & Lorengo (Min. Record v. 33, n. 1 2002) is a rare mineral at Butte and was found in a single specimen from the Lexington mine. This specimen contains a single lemon yellow anhedral crystal grain in Rhodonite matrix.