Greisen definitions

Greisen

1) Igneous rock 2) Rock 3) Stone
Found on https://www.crosswordclues.com/clue/greisen

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Greisen

Greisen is a highly altered granitic rock or pegmatite. Greisen is formed by self-generated alteration of a granite and is a class of endoskarn. Greisens appear as highly altered rocks, partly coarse, crystalline granite, partly vuggy with miarolitic cavities, disseminated halide minerals such as fluorite, and occasionally metallic oxide and sulfi...
Found on http://en.wikipedia.org/wiki/Greisen

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Greisen

• (n.) A crystalline rock consisting of quarts and mica, common in the tin regions of Cornwall and Saxony.
Found on http://thinkexist.com/dictionary/meaning/greisen/

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greisen

modification of granite, an intrusive igneous rock; it consists essentially of quartz and white mica (muscovite) and is characterized by the absence ...
Found on http://www.britannica.com/eb/a-z/g/70

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Greisen

Grei'sen noun (Min.) A crystalline rock consisting of quarts and mica, common in the tin regions of Cornwall and Saxony.
Found on http://www.encyclo.co.uk/webster/G/57

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Greisen

Greisen is a crystalline rock consisting of quartz and mica, common in the tin regions of Cornwall and Saxony.
Found on http://www.probertencyclopaedia.com/browse/HG.HTM

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greisen

[n] - a granitic rock composed of quartz and mica
Found on http://www.webdictionary.co.uk/definition.php?query=greisen

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