Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Eugsterite from
Sindo, Homa Bay County, Kenya


Classification
Species:Eugsterite
Formula:Na4Ca(SO4)3 · 2H2O
Confirmation
Validity:Valid - Type Locality
Data
Mineral Data:Click here to view Eugsterite data
Locality Data:Click here to view Sindo, Homa Bay County, Kenya
Data Identifiers
Mindat Occurrence Record ID:207134
Long-form Identifier:1:3:207134:3
GUID (UUID V4):0
Nearest other occurrences of Eugsterite
78.2km (48.6 miles) ⓘLuanda, Vihiga County, Kenya
References
Vergouwen, Lideke (1981) Eugsterite, a new salt mineral. American Mineralogist, 66 (5-6) 632-636
 
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