sillimanite


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sil·li·ma·nite

 (sĭl′ə-mə-nīt′)
n.
A usually white, hard mineral, Al2SiO5, occurring in highly metamorphosed rock as long, slender, fibrous crystals. Also called fibrolite.
[After Benjamin Silliman.]
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.

sillimanite

(ˈsɪlɪməˌnaɪt)
n
(Minerals) a white, brown, or green fibrous mineral that consists of aluminium silicate in orthorhombic crystalline form and occurs in metamorphic rocks. Formula: Al2SiO5
[C19: named after Benjamin Silliman (1779–1864), US chemist]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

sil•li•man•ite

(ˈsɪl ə məˌnaɪt)

n.
a needlelike or fibrous mineral, aluminum silicate, Al2SiO5, synthetic forms of which are used in ceramic insulators.
[1825–30; after B. Silliman (1779–1864), U.S. scientist]
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 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
The Kollam coastline is rich in minerals like ilmenite, rutile, zircon, monazite, leucoxene, sillimanite and garnet.
Why a sea of calamity awaits Kerala if mining isn't curbed
New products of calcium magnesium silicide (CaMgSi), sillimanite ([Al.sub.2](Si[O.sub.4])O), kaolinite ([Al.sub.2]([Si.sub.2][O.sub.5])[(OD).sub.4]), feldspar ([Al.sub.2][Si.sub.2][O.sub.8]), and trikalsilite ((KNa)AlSi[O.sub.4]) were formed.
Geotechnical Properties and Microstructure of Lime-Fly Ash-Phosphogypsum-Stabilized Soil
Caption: Figure 2: Geological map of the study area ([5] E: 1/1000000): 1, anatexite granite; 2, schist; 3, mica schist; 4, syenite; 5, tray basalt; 6, syn-tectonic granite (Monzonitic, discordant with biotite); 7, anatexite or migmatite with biotite); 8, embrechite gneiss; 9, Upper gneiss (grenatifere with two micas); 10, quartzite (Lom group, Mbalmayo-Bengbis, and Ayos); 11, Sedimentary formation of cretaceous; 12, upper mica schist with chlorite (Poli group); 13, low gneiss (with biotite, amphibole, pyroxene, sillimanite and hypersthene); 14, amphibolite (para- and ortho-: greenstones); 15, pelites; 16, post-tectonic granite (microgranite); 17, calcoalkaline orthogneiss.
Mapping of Deep Tectonic Structures of Central and Southern Cameroon by an Interpretation of Surface and Satellite Magnetic Data
The semiquantitative estimation of bulk clay mineralogical composition showed that the most abundant mineral was smectite, with 48wt%, followed by quartz (21%), plagioclase (11%), feldspar (9%), sillimanite (7%), illite, cristobalite, and albite (4%).
Characterization of Colombian Clay and Its Potential Use as Adsorbent
It also contains small percentages of feldspar, illite, montmorillonite, ilmenite, anastase, haematite, bauxite, zircon, rutile, kyanite, sillimanite, graphite, attapulgite, and halloysite [15, 16].
Facile Preparation of Biocomposite from Prawn Shell Derived Chitosan and Kaolinite-Rich Locally Available Clay
The Upper Siwaliks are characterized by the appearance of heavy minerals, sillimanite and hornblende (Dennell et al., 2008).
New Fossils of Rhinoceros (Rhinocerotidae) from the Soan Formation (Plio-Pleistocene) of Northern Pakistan
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
In contrast, the Melford Formation has somewhat different rock types, including biotite, biotite-cordierite, sillimanite, and garnet-bearing schist, marble, quartzite, and granitic orthogneiss (White and Boehner 2008).
Field relations, age, and tectonic setting of metamorphic and plutonic rocks in the Creignish Hills--North Mountain area, southwestern Cape Breton Island, Nova Scotia, Canada

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