Explore Mineral


Name: Colemanite
Cole
Specimens in Collection:

#1242: Colemanite / Ulexite
Rio Tinto Mine, Kern Co., CA, USA
IMA Chemistry: CaB3O4(OH)3·H2O
Chemistry Elements: The mineral Colemanite contains elements:
Calcium (Ca)
Boron (B)
Oxygen (O)
Hydrogen (H)
Country of Type Locality: USA
Year First Published: 1883
IMA Status: Approved,Grandfathered
Status Notes: Hanks H G (1883) Report on the borax deposits of California and Nevada, Borax minerals and those containing boracic acid in small quantities, 3, 81-89
Structural Group Name:  
Fleischer's Group Name:  
Crystal Systems: monoclinic
Oldest Known Age: 1080 Million Years Ago
Mohs Hardness: 4.5
Diaphaneity: 2.0
Specific Gravity: 2.42
More Info: Search Wikipedia: Colemanite (Wiki)
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Data appearing on this page is derived from the IMA Database of Mineral Properties. Not all properties are applicable to or available for all minerals.


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