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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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| ? Mentioned in | ? References in periodicals archive | |
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Amazonite cluster earrings by Shaesby, yellow gold with amazonite
beads. This claim, however, is based on the
misidentification by archaeologists of amazonite (a green variety of
microcline) as emerald (Lucas and Harris, 1962, p. |
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