staurolite

[ stawr-uh-lahyt ]
/ ˈstɔr əˌlaɪt /

noun

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

1790–1800; < Greek stauró(s) a cross + -lite

OTHER WORDS FROM staurolite

stau·ro·lit·ic [stawr-uh-lit-ik] /ˌstɔr əˈlɪt ɪk/, adjective

Example sentences from the Web for staurolite

British Dictionary definitions for staurolite

staurolite
/ (ˈstɔːrəˌlaɪt) /

noun

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

Derived forms of staurolite

staurolitic (ˌstɔːrəˈlɪtɪk), adjective

Word Origin for staurolite

C19: from Greek stauros a cross + -lite

Scientific definitions for staurolite

staurolite
[ stourə-līt′ ]

A brownish to black orthorhombic mineral, often having crossed intergrown crystals and found in mica schists and gneisses. Chemical formula: (FeMg)2Al9Si4O23(OH).