Construction Grade Mined and Rock Materials

Construction Grade Mined and Rock Materials

Virginian Vermiculite LLC

Description: Operates one of two commercial vermiculite ore operations in North America, at a surface mine in Louisa County, VA. 

Location: Louisa, Virginia, USA


Bear River Zeolite Co., Inc

Description: Zeolite operates an open pit mine in in Franklin County, Idaho within a sedimentary deposit of hydrothermally altered (zeolitized) volcanic ash.

Location: Thompson Falls, Montana, USA


Cornerstone Industrial Minerals Corporation

Description: Operates an open pit perlite mine within a unique weathered rhyolitic dome deposit occurring from a single volcanic event in south central Oregon USA

Location: Lakeview, Oregon, USA


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