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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Schoepite from
Ruggles Mine, Grafton, Grafton County, New Hampshire, USA


09194170017339893575300.jpg
Schoepite, etc.

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
08924540017272010161988.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
06029640017367630377001.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
09194170017339893575300.jpg
Schoepite, etc.

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
05046750017272038765575.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
06029640017367630377001.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
09194170017339893575300.jpg
Schoepite, etc.

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
00359150017367630387427.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
05247390017367630382789.jpg
Schoepite

Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
Locality type:Mine
Classification
Species:Schoepite
Formula:(UO2)8O2(OH)12 · 12H2O
Comments:Mineral A of Frondel (1956). "Mineral A is particularly abundant at the Ruggles locality, where it is one of the chief constituents of the orange gummite pseudomorphs after dendritic aggregates of uraninite crystals for which the locality is noted... It occurs as microcrystalline aggregates of a bright-orange to orange-yellow or golden-yellow color. ... The luster varies from dull and earthy to weakly vitreous in hard, translucent aggregates."
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Paulscherrerite9
Zircon9
Vandendriesscheite8
Uraninite7
Meta-autunite4
Microcline3
Curite1
Metaschoepite1
Parauranophane1
Quartz1
Becquerelite1
Data
Mineral Data:Click here to view Schoepite data
Locality Data:Click here to view Ruggles Mine, Grafton, Grafton County, New Hampshire, USA
Photo GalleryView Gallery (3 photos)
Data Identifiers
Mindat Occurrence Record ID:29559
Long-form Identifier:1:3:29559:2
GUID (UUID V4):0
Nearest other occurrences of Schoepite
19.6km (12.2 miles) ⓘPalermo No. 1 Mine, Groton, Grafton County, New Hampshire, USA
51.7km (32.1 miles) ⓘBeryl Mountain Quarry, South Acworth, Acworth, Sullivan County, New Hampshire, USA
References
Frondel, Clifford (1956) Mineral composition of gummite. American Mineralogist, 41 (7-8) 539-568
 
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