(thing) by CentrX Tue Jun 20 2000 at 3:47:56

A usually milky white variety of plagioclase, NaAlSi3O8, found in various plutonic rocks, especially granite and syenite, often with twin crystals.

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(definition) by Webster 1913 Tue Dec 21 1999 at 21:42:31

Al"bite (#), n. [L. albus white.] Min.

A mineral of the feldspar family, triclinic in crystallization, and in composition a silicate of alumina and soda. It is a common constituent of granite and of various igneous rocks. See Feldspar.

 

© Webster 1913.

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