perlite . horticultural, board, and specialty perlite ores. cornerstone industrial mineral mines low density, high quality perlite ore. serving north america and the pacific rim.

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• • Cornerstone Minerals
  • Minerals
  • Mining
  • Mining Processing
  • Processing Mineral
  • Sore Mining
• • Geological Mapping
  • Perlite
  • Cornerstone
  • Cornerstone Perlite
  • Perlite Mining
  • Tucker Hill

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Perlite Mining & Processing - Cornesrstone Minerals Corp, USA

>> REQUEST MORE INFORMATION Mining is conducted at the Tucker Hill pit, 35 miles north of Lakeview, Oregon. Topsoil and organic matter are stripped from the surface and stockpiled for post mining reclamation. The ore is then drilled and blasted. All blast areas are mapped and drill holes sampled for expandability tests. In order to assure product quality, ore mining dig plans are designed on...

http://www.cornerstonemineral.com/minproc.html

Perlite Ore - We specialize in Perlite processing. Mining, and...

>> REQUEST MORE INFORMATION History Interest in the Tucker Hill area goes back to 1949 when a group of local prospectors staked claims on outcropping perlite located in the northwestern portion of the present property block. A bulk sample expansion test was favorable, and small-scale mining was conducted until 1954. Mining was concentrated on an area that was easily accessible but contained ...

http://www.cornerstonemineral.com/histgeo.html

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