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[stawr-uh-lahyt] /ˈstɔr əˌlaɪt/
a mineral, basic iron aluminum silicate, Fe 2 Al 2 O 7 (SiO 4) 4 (OH), occurring in brown to black prismatic crystals, which are often twinned in the form of a cross.
Origin of staurolite
1790-1800; < Greek stauró(s) a cross + -lite
Related forms
[stawr-uh-lit-ik] /ˌstɔr əˈlɪt ɪk/ (Show IPA),
adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for staurolite
  • The source of the garnet is quartz-garnet-mica-staurolite schist that forms a portion of the walls of the canyon.
  • Rare minerals such as garnets, sillimanite, staurolite or andalusite can be common in places.
  • Rare minerals such as garnets, staurolite, or sillimanite can be abundant locally.
British Dictionary definitions for staurolite


a brown glassy mineral consisting of iron aluminium silicate in the form of prismatic crystals: used as a gemstone. Formula: Fe2Al9Si4O11(OH)2
Derived Forms
staurolitic (ˌstɔːrəˈlɪtɪk) adjective
Word Origin
C19: from Greek stauros a cross + -lite
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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staurolite in Science
A brownish to black orthorhombic mineral, often having crossed intergrown crystals and found in mica schists and gneisses. Chemical formula: (FeMg)2Al9Si4O23(OH).
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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