  Grunerite asbestos.  
 
See above Actinolite sample for an extended discussion of asbestos, mesothelioma, lawyers, and litigation. 
 
Mineral details: Grunerite (variety "Amosite"), amphibole group, double-chain silicate.  Name is derived from an acronym of an original mining locality (AMOSA Mine, Asbestos Mines Of South Africa).  Sample from Limpopo Province, South Africa. 
 
Source: eBay seller star-stuff 
Contributor: Theodore Gray 
Acquired: 10 April, 2006 
Text Updated: 30 May, 2006 
Price: $30 
Size: 2" 
Composition: (FeMg)7Si8O22(OH)2
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