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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Gypsum from
Silver Prince Mine (Nottbusch Mine; Addie prospect; Addie group), Neversweat Ridge, Neversweat Mining District (Palomas Mountains Mining District), Neversweat Ridge-Palomas Mountains, Yuma County, Arizona, USA


Locality type:Mine
Classification
Species:Gypsum
Formula:CaSO4 · 2H2O
Comments:Massive.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Gypsum data
Locality Data:Click here to view Silver Prince Mine (Nottbusch Mine; Addie prospect; Addie group), Neversweat Ridge, Neversweat Mining District (Palomas Mountains Mining District), Neversweat Ridge-Palomas Mountains, Yuma County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:245652
Long-form Identifier:1:3:245652:2
GUID (UUID V4):0
Nearest other occurrences of Gypsum
35.7km (22.2 miles) ⓘCastle Dome Gypsum occurrence (Castle Dome occurrence), Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
36.1km (22.4 miles) ⓘUnnamed Gypsum deposit, Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
36.3km (22.5 miles) ⓘSenora Mine (Señora Mine; Senora Mine group; Señora claims; Linda group), Haack Mine group, Castle Dome Mine group, Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
38.9km (24.2 miles) ⓘCastle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
46.1km (28.6 miles) ⓘRed Cross Mine (Norton Mine), Barry M. Goldwater Air Force Range, Mohawk Mining District, Mohawk Mountains, Yuma County, Arizona, USA
53.7km (33.4 miles) ⓘRed Knob Mine (Red Knob prospect; Red Knob claims), Muggins Mountains uranium prospects, Muggins Mining District, Muggins Mountains, Yuma County, Arizona, USA
64.8km (40.3 miles) ⓘPandino Mine (Pandino claim; Panadero Mine), Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
64.8km (40.3 miles) ⓘGolden Queen Mine, Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
64.9km (40.3 miles) ⓘLas Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
64.9km (40.3 miles) ⓘTraeger Mine (Traeger prospect; Agate Mine), Las Flores Mine group, U.S. Army Yuma Proving Grounds, Laguna Mining District (Las Flores Mining District), Laguna Mts (San Pablo Mts), Yuma County, Arizona, USA
References
Wilson, E.D. (1933), AZ Bur. Mines Bull. 134: 128
 
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