grunerite


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grunerite

[′grün·ə‚rīt]
(mineralogy)
(Mg,Fe)7Si8O22(OH)2 Variety of amphibole; forms monoclinic crystals.
References in periodicals archive ?
Non-occupational exposure to commercial amphibole asbestos and asbestos-related disease: Is there a role for grunerite asbestos (amosite)?
In Gwynedd, PS539,130 has been spent on removal with all three of the major types of asbestos - crocidolite, grunerite and chrysotile - having been found within its buildings.
The proposal directly concerns the following products: actinolite asbestos, grunerite asbestos, anthophyllite asbestos, chrysotile asbestos, crocidoliteand tremolite.
Associated minerals are: quartz, magnetite, spessartine-rich garnet, "apatite," sillimanite, ferroan gahnite, sulfides, Mn-rich grunerite (in places manganogrunerite), manganoan fayalite and Mn-rich pyroxferroite.
with Anthophyllite, forms a series with Grunerite, Amphibole group, Can.
5 mi (14 km) distance, within chert-oxyde- grunerite, gold-bearing iron formations.