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Calcite from
Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA

Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Comments:Crusts several inches thick comprised of crystals.
Habit:Simply-terminated, rhombic
Colour:Creamy-white (egg shell)
Confirmation
Validity:Believed Valid
References
References:Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 152.
Associated Minerals:
Associates:Epidote
Laumontite
Associated Minerals Based on Photo Data:
Copper2 photos of Calcite associated with Copper at this locality.
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Twin Buttes Mine (Twin Buttes Open Pit Mine), Twin Buttes, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
Nearest other occurrences of Calcite
7.5km (4.6 miles) Crown King & Tiger Mine groups (Crown King and Tiger Mines), Esperanza Mine group [old], Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
9.6km (6.0 miles) Sierrita Mine (Duval-Sierrita Mine; Duval Esperanza Mine; Sierrita Open Pit Mine), Batamote Hills, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
10.1km (6.3 miles) San Xavier Mine (San Xavier Mine shaft), Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
11.3km (7.0 miles) Mission pit (Mission Mine [old]; East Pima Mine; Mission Porphyry Copper deposit), Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
11.5km (7.2 miles) Mineral Hill Mines (Azurite group; Old Azurite Mine; Copper Glance Mine), Mineral Hill, Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
11.6km (7.2 miles) Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
15.5km (9.6 miles) San Xavier pit (San Xavier open pit; San Xavier West Mine; San Xavier Unit Open pit), Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mts, Pima Co., Arizona, USA
16.4km (10.2 miles) Neptune Mine (Neptune property; Fluorine Mine; Fluxore Mine; Turtle Green Mine; Turtle Spar Mine; Turtle Star Mine; Cardiella Mine), Gunsight Mountain, Papago Mining District (Sierrita Mining District), Sierrita Mts, Pima Co., Arizona, USA
23.8km (14.8 miles) Black Dike Mine (Black Dike group; Black Dike claim; Black Dike deposit; Black Dyke Mine; Big Dike; Bobson group; Big Dike Apex & Ajax), Papago Mining District (Sierrita Mining District), Sierrita Mts, Pima Co., Arizona, USA
24.5km (15.2 miles) Imerys Marble Quarry (Santa Rita Quarry), Helvetia-Rosemont Mining District, Santa Rita Mts, Pima Co., Arizona, USA
 
Mineral and/or Locality  
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