gehlenite

gehlenite

[gey-luh-nahyt]
noun
a mineral, aluminum calcium silicate, occurring in prismatic crystals varying in color from gray-green to brown.

Origin:
1810–20; named after A. F. Gehlen (1775–1815), German chemist; see -ite1

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World English Dictionary
gehlenite (ˈɡeɪləˌnaɪt)
 
n
a green mineral consisting of calcium aluminium silicate in tetragonal crystalline form. Formula: Ca2Al2SiO7
 
[named after A. F. Gehlen (1775--1815), German chemist; see -ite1]

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