Ganister
A rock subtype
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A hard, fine-grained, quartz-arenite, cemented with silica and possessing a splintery fracture. It can be associated with coal seams.
A hard, fine-grained, particularly pure siliceous grit, quartzose sandstone or quartzite, used in the manufacture of silica brick. The term is mostly used for a rock which occurs in the Upper Carboniferous of the British Midlands, composed of subangular quartz particles cemented with secondary silica, and possessing a characteristic splintery fracture. Ganister is distinguished from chert by its more granular texture and by the relatively small quantity of chalcedonic or amorphous silica.
Ref.: Chambersâs Mineralogical Dictionary (1964) Chemical Publishing Co., Inc., New York, NY, USA (reprint).
A hard, fine-grained, particularly pure siliceous grit, quartzose sandstone or quartzite, used in the manufacture of silica brick. The term is mostly used for a rock which occurs in the Upper Carboniferous of the British Midlands, composed of subangular quartz particles cemented with secondary silica, and possessing a characteristic splintery fracture. Ganister is distinguished from chert by its more granular texture and by the relatively small quantity of chalcedonic or amorphous silica.
Ref.: Chambersâs Mineralogical Dictionary (1964) Chemical Publishing Co., Inc., New York, NY, USA (reprint).
Unique Identifiers
Mindat ID:
49130
Long-form identifier:
mindat:1:1:49130:5
Classification of Ganister
Internet Links for Ganister
mindat.org URL:
https://www.mindat.org/min-49130.html
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References for Ganister
Reference List:
