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Bassanite from
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

Locality type:Mine
Classification
Species:Bassanite
Formula:Ca(SO4) · 0.5H2O
Comments:Occurs in veinlets filled with quartz in hydrothermally altered diorite and quartz diorite porphyry.
Habit:Tiny, sub-hedral, fibrous crystals
Confirmation
Validity:Believed Valid
References
References:Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 130.
Associated Minerals:
Associates:Calcite
Chlorite Group
Quartz
Data
Mineral Data:Click here to view Bassanite data
Locality Data:Click here to view 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
 
Mineral and/or Locality  
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