staurolite


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Related to staurolite: sillimanite

stau·ro·lite

 (stôr′ə-līt′)
n.
A brownish to black mineral, chiefly (FeMg)2Al9Si4O23(OH), often having crossed intergrown crystals and sometimes used as a gem.
[Greek stauros, cross; see stā- in Indo-European roots + -lite.]
stau′ro·lit′ic (-lĭt′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

staurolite

(ˈstɔːrəˌlaɪt)
n
(Minerals) a brown glassy mineral consisting of iron aluminium silicate in the form of prismatic crystals: used as a gemstone. Formula: Fe2Al9Si4O11(OH)2
[C19: from Greek stauros a cross + -lite]
staurolitic adj
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

stau•ro•lite

(ˈstɔr əˌlaɪt)

n.
a mineral, an iron-magnesium-aluminum silicate, occurring in brown to black prismatic and flattened crystals, which are often twinned in the form of a cross.
[1790–1800; < Greek stauró(s) a cross + -lite]
stau`ro•lit′ic (-ˈlɪt ɪk) adj.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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"The Legend of the Fairy Stones" cleverly blends its astounding mixed bag of beautiful artwork with originally authored lyrical verse to share the story of real-life staurolite crystals.
"The Legend of the Fairy Stones" Wins a Purple Dragonfly Book Award for Best Interior Design
The Sabin property is underlain by intermediate and minor felsic volcanic units that exhibit widespread alteration comprised of garnet, staurolite, sillimanite and sericite metamorphic mineralogy.
Commander Sampling Returns High Gold and Silver from Sabin Property, Ontario
Optical microscopy detected many other minerals among the heavy minerals of the Lemme samples, the contents of which remained near the detection limit of the XRD method (pyroxenes, epidotes, micas, tourmaline and apatite) or considerably lower (pyrite, barite, staurolite, kyanite, monazite and titanite).
Provenance of heavy minerals in the Quaternary deposits of the Lemme outcrop, Estonia, based on optical microscopy, X-ray diffractometry and scanning electron microscope microanalysis/Raskete mineraalide paritolu Lemme paljandi Kvaternaari setetes, pohinedes optilisele mikroskoopiale, rontgendifraktomeetriale ja skaneerivale elektronmikroskoopiale
These very real stone crosses, officially called Staurolite, form naturally through a geothermal process known as "cruciform penetration twinning".
The Legend of the Fairy Stones
The coarse fraction is well sorted and consists mainly of subrounded quartz grains, with only minor amounts of other minerals (staurolite, tourmaline, zircon and opaque minerals), except in the lower part of the profile at Kasangulu, which includes clustered occurrences of arkose-derived material.
Iron oxides in fractured quartz - development and evolution of iron sandstone layers in the Kinshasa area, DR Congo
Large metamorphic minerals (e.g., porphyroblasts such as biotite, garnet, andalusite and staurolite) that contain passive inclusions are extraordinarily important because they are utilized in assessing the tectonic, metamorphic, and structural history of the mid- to deep-crustal levels of orogenic belts.
Classification, Character, and Origin of Textural Zoning in Porphyroblasts: Significance and Relation to Strain
The rocks that host the Jiajika granite underwent multistage metamorphism during magmatism, which led to the development of the five distinct metamorphic zones that surround the granite (from inner to outer): diopside, staurolite, andalusite-staurolite, andalusite, and biotite zones.
Homogenization Experiments of Crystal-Rich Inclusions in Spodumene from Jiajika Lithium Deposit, China, under Elevated External Pressures in a Hydrothermal Diamond-Anvil Cell
A high temperature-low pressure metamorphic assemblage of biotite, andalusite, staurolite, garnet, muscovite, and quartz is developed in the sedimentary rocks up to 500 m from the granite (Ruitenberg 1967; Fyffe et al.
Geological relationships and laser ablation ICP-MS U-Pb geochronology of the Saint George Batholith, southwestern New Brunswick, Canada: implications for its tectonomagmatic evolution
The metamorphic rocks of the Silgara Formation in the Santander Massif (Figure 1) were metamorphosed to upper amphibolites facies during the Caledonian orogeny, developing a sequence of metamorphic zones (biotite, garnet, staurolite and sillimanite) that defines the regional thermal structure.
Petrologic significance of Fe-rich staurolite in pelitic schists of the Silgara Formation, Santander Massif/Significado Petrologico de Estaurolita Rica en Fe en Esquistos Peliticos de la Formacion Silgara, Macizo de Santander

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