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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Namuwite from
Ochsenhütte slag locality, Grane Reservoir, Langelsheim, Goslar District, Lower Saxony, Germany


03950170017374020013143.jpg
Namuwite

Ochsenhütte slag locality, Grane Reservoir, Langelsheim, Goslar District, Lower Saxony, Germany
03950170017374020013143.jpg
Namuwite

Ochsenhütte slag locality, Grane Reservoir, Langelsheim, Goslar District, Lower Saxony, Germany
08514160017272022554378.jpg
Namuwite

Ochsenhütte slag locality, Grane Reservoir, Langelsheim, Goslar District, Lower Saxony, Germany
Locality type:Slag Locality
Classification
Species:Namuwite
Formula:Zn4(SO4)(OH)6 · 4H2O
Formation:Post-mining/Anthropogenic
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Namuwite data
Locality Data:Click here to view Ochsenhütte slag locality, Grane Reservoir, Langelsheim, Goslar District, Lower Saxony, Germany
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:31047
Long-form Identifier:1:3:31047:5
GUID (UUID V4):0
References
Groat, Lee A. (1996) The crystal structure of namuwite, a mineral with Zn in tetrahedral and octahedral coordination, and its relationship to the synthetic basic zinc sulfates. American Mineralogist, 81 (1) 238-243 doi:10.2138/am-1996-1-229
 
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