staurolite
a mineral, basic iron aluminum silicate, Fe2Al2O7(SiO4)4(OH), occurring in brown to black prismatic crystals, which are often twinned in the form of a cross.
Origin of staurolite
1Other words from staurolite
- stau·ro·lit·ic [stawr-uh-lit-ik], /ˌstɔr əˈlɪt ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for staurolite
/ (ˈstɔːrəˌlaɪt) /
a brown glassy mineral consisting of iron aluminium silicate in the form of prismatic crystals: used as a gemstone. Formula: Fe 2 Al 9 Si 4 O 11 (OH) 2
Origin of staurolite
1Derived forms of staurolite
- staurolitic (ˌstɔːrəˈlɪtɪk), adjective
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
Scientific definitions for staurolite
[ stou′rə-līt′ ]
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 © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Browse