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Definition of the noun Gahnite

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noun - plural: gahnites

  1. [mineral] A rare mineral ZnAl2O4 in the spinel group.


Gahnite, ZnAl₂O₄, is a rare mineral belonging to the spinel group. It forms octahedral crystals which may be green, blue, yellow, brown or grey. It often forms as an alteration product of sphalerite in altered massive sulphide deposits such as at Broken Hill, Australia. Other occurrences include Falun, Sweden where it is found in pegmatites and skarns, Charlemont, Massachusetts; Spruce Pine, North Carolina; White Picacho district, Arizona; Topsham, Maine; and Franklin, New Jersey in the United States.

Printed dictionaries and other books with definitions for Gahnite

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Google previewSri Lanka Mineral & Mining Sector Investment and Business Guide (2007)

by USA International Business Publications

Gahnite: Gahnite is a zinc aluminium oxide and rich in zinc. These stones are green in colour and transparent materials when facetted are attractive. This material has been so named after its discoverer G.J. Gahn a Swedish chemist These ...

Google previewUnderstanding Mineral Deposits (2012)

by Kula Misra

Gahnite is an accessory mineral in virtually all deposits metamorphosed to amphibolite facies. Fe-sulfides are invariably the most abundant ore minerals in typical massive ores of Cu-Zn deposits, although the pyrite:pyrrhotite ratio varies ...

Google previewEssentials of Mineral Exploration and Evaluation (2016)

by S. M. Gandhi, B. C. Sarkar

Gahnite is a common minor phase in the ore body and has formed mainly by desulfurization of sphalerite.

Google previewNature Guide: Rocks and Minerals (2012)

by DK Publishing

A zinc aluminum oxide, gahnite is a member of the spinel group and frequently forms the simple octahedral crystals typical of the group. Crystals usually show good external form. They may be striated on faces and cleavage surfaces. Usually ...

Google previewManual of Mineralogy and Lithology (1880)

Containing the Elements of the Science of Minerals and Rocks. For the Use of the Practical Mineralogist and Geologist, and for Instruction in Schools and Colleges by James Dwight Dana

Gahnite is a spinel in which zinc takes ...

Google previewA mineralogical lexicon of Franklin, Hampshire, and Hampden counties, Massachusetts (1896)

by Benjamin Kendall Emerson

GAHNITE. 1885. Gahnite. Howe. In pyrite, at the mines of J. M. Davis & Co. In outer portion of pyrite ...

Google previewThe Condensed Chemical Dictionary (1920)

A Reference Volume for All Requiring Quick Access to a Large Amount of Essential Data Regarding Chemicals, and Other Substances Used in Manufacturing and Laboratory Work by Francis Mills Turner

Gahnite 238 Galls Gahnite. A natural zinc aluminate, Zn( A102)a- Galactose*...

Google previewDictionary of Gems and Gemology (2013)

by Mohsen Manutchehr-Danai

Synthetic gahnite has been produced. System: cubic. Formula: 8(ZnAl2O,]. Luster : vitreous to greasy. Colors: greenish, blue, reddish-violet, yellowish, and brown. Streak: grayish. Diaphaneity: translucent to opaque. Cleavage: {111} indistinct.

Google previewThe Cyclopædia; Or, Universal Dictionary of Arts, Sciences, and Literature. By Abraham Rees, ... with the Assistance of Eminent Professional Gentlemen. Illustrated with Numerous Engravings, by the Most Disinguished Artists. In Thirthy-nine Volumes. Vol. 1 [- 39] (1819)

|GAHNITE, in Mineralgy, one of the recently difcovered Swedish fofils, of which Miestrs. Eckeberg and Vauquelin have given the analyses. It is found maffive and in small and middle-sized oĉtohedral cryítals, imbedded in a talcofe rock.

Google previewThe London Encyclopaedia (1829)

Or, Universal Dictionary of Science, Art, Literature, and Practical Mechanics, Comprising a Popular View of the Present State of Knowledge. Illustrated by Numerous Engravings, a General Atlas, and Appropriate Diagrams by Thomas Curtis

Gahnite. Gadolinite. Zircon. common.

Google previewDictionary of Geological Terms (1984)

by Robert Latimer Bates, Julia A. Jackson

gahnite, and galaxite. 3. A member of the spinel series. spinning fiber Asbestos suitable for the manufacture of yarns and textiles. S-P interval In earthquake ...

Google previewA Dictionary of Chemistry and the Allied Branches of Other Sciences (1879)

by Henry Watts

GAHNITE . 535.

Google previewEncyclopaedia Metropolitana; Or, Universal Dictionary of Knowledge on an Original Plan Comprising the Twofold Advantage of a Philosophical and an Alphabetical Arrangement, with Appropriate Engravings Edited by Edward Smedley, Hugh James Rose, Henry John Rose (1845)

Mixed sciences, vol. 4

Gahnite. Aluminate of Zinc. Galena. Sulphuret of Lead.

Google previewThe popular encyclopedia; or, 'Conversations Lexicon': [ed. by A. Whitelaw from the Encyclopedia Americana]. (1874)

GAHNITE, a name given to automolite, after Gahn. It consUts of oxide of zinc and aluminium, with some silica and ferrous oxide, and belong* to the group of minerals called tpintl. It crystallizes in octa- and tetra-hedrons ; it is of dark green or ...

Google previewThe Cyclopaedia; Or, Universal Dictionary of Arts, Sciences and Literature (1819)

by Abraham Rees

GAHNITE, in Mineralogy, one of the recently discovered Swedish fossils, of which Messrs.

Google previewA Dictionary of Chemistry (1872)

by Henry Watts

Gahnite ...

Google previewVan Nostrand’s Scientific Encyclopedia (2013)

by Douglas M. Considine, Glenn D. Considine

GAHNITE—ZINC SPINEL. The mineral gahnite is isometric with an octahedral habit but may appear as dodecahedrons or modified cubes. Chemically it is zinc aluminate corresponding to the formula ZnAl2O4. There is a tendency for cleavage ...

Google previewDictionary of Ceramic Science and Engineering (2013)

by Ian McColm

gahnite. ZnAl2O4, mp 1950°C; a spinel sometimes used in refractories. gaize cement. A cement consisting of a finely ground mixture of a pozzolanic material and hydrated ...

Google previewThe Project Gutenberg Encyclopedia (101-)

by Project Gutenberg

spinel, gahnite, &c. Salts of Aluminium. — Aluminium forms one series of salts, derived from the trioxide, Al2O3. These exhibit, in certain cases, marked crystallographical and other analogies with the ...

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Small photo of Gahnite, Sterling Hill Mine, Ogdensburg, NJSmall photo of Gahnite in Calcite, Sterling Hill Mine, Ogdensburh, New JerseySmall photo of rectangular tiles of pieces gahnite and marble with cracks and patches for landscaping More...

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Gahnite Meaning

Video shows what gahnite means. A rare mineral ZnAl2O4 in the spinel group.. Gahnite Meaning. How to pronounce, definition audio dictionary. How to say ...

Scrabble value of G2A1H4N1I1T1E1

The value of this 7-letter word is 11 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

Anagrams of GAHNITE

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