Vote for your favorite mineral in #MinCup26! - Cuprite vs. Halite
While externally similar shapes, these two minerals are very different inside.
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Helvine from
Abril Mine (Dos Hermanos Mine; Herrera Mine), Cochise Stronghold, Middle Pass Mining District, Cochise County, Arizona, USA


Locality type:Mine
Classification
Species:Helvine
Formula:Be3Mn42+(SiO4)3S
Comments:Occurs in tactite in limestone replacement deposit.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Helvine data
Locality Data:Click here to view Abril Mine (Dos Hermanos Mine; Herrera Mine), Cochise Stronghold, Middle Pass Mining District, Cochise County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:201857
Long-form Identifier:1:3:201857:7
GUID (UUID V4):0
Nearest other occurrences of Helvine
1.3km (0.8 miles) ⓘUnnamed Cu-Ag prospect, Middle Pass Mining District, Cochise County, Arizona, USA
2.9km (1.8 miles) ⓘSan Juan Mine, Gordon Camp, Middle Pass Mining District, Cochise County, Arizona, USA
References
Warner, L.A., et al (1959), Occurrence of non-pegmatite beryllium in the US, USGS PP 318
Meeves, H.C. (1966), Nonpegmatite beryllium occurrences in AZ, CO, NM, UT and four adjacent states, US Bur. of ines Rept. Inv. 6828.
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.245
 
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