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feldspar |
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feldspar [feld′spär] Etymology: Ger, feld, field, spath, spar a crystalline mineral of aluminum silicate with potassium, sodium, barium, and calcium. It melts over a range of 593.5° C to 1093° C (1100° F to 2000° F) and is an important component of dental porcelain. feldspar (feld´spär), n a crystalline mineral of aluminum silicate with po-tassium, sodium, barium, or calcium– NaAlSi3O8 or KAlSi3O8. Feldspar melts over a range of 1,100°F to 2,000°F (593.5°C to 1093.5°C). An important constituent of dental porcelain. feldspar, orthoclase ceramic, n a clay found in large quantity in the solid crust of the earth. It acts as a filler and imparts body to the fused dental porcelain. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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Other minerals in the stone are feldspar, quartz and hornblende, which give the stone a light-green tone from different views. Avalon is now focusing on producing a lithium feldspar product. Imerys named Michael Yarborough vice president and general manager for Kentucky-Tennessee Clay, KT Feldspar and K-T Clay de Mexico. |
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