feldspar feldspar  /ˈfɛld ˌspɑr/


  • (n) any of a group of hard crystalline minerals that consist of aluminum silicates of potassium or sodium or calcium or barium


  1. But the present cost of processing feldspar is far more than $40 a ton, the gage for fertilizer potassium.
  2. The Davidsons claim that their grit is ideal because it contains sparkling particles of feldspar and mica which attract a hungry hen's eye.
  3. New York, the Carolinas, Colorado, usually being found with feldspar deposits.


  • Canadian company still interested in Bovill mine

    BOISE, Idaho (AP) — A Canadian mining company plans to renew its lease on state endowment land in northern Idaho in hopes of eventually mining clay, quartz and feldspar.
    on June 19, 2013     Source: Idaho Press-Tribune

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