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Andradite - Wikipedia
Andradite is a mineral species of the garnet group. It is a nesosilicate, with chemical formula Ca3Fe2Si3O12. Andradite [Adr].
en.wikipedia.org
en.wikipedia.org
Andradite: Mineral information, data and localities. - Mindat.org
Andradite is found in skarns from contact metamorphosed impure limestones or calcic igneous rocks; in chlorite schists and serpentinites; in alkalic igneous ...
www.mindat.org
www.mindat.org
Andradite Mineral Data - Mineralogy Database
Andradite's chemical formula is Ca3Fe+++2(SiO4)3. It can be black, yellowish brown, red, greenish yellow, or gray, with a density of 3.7-4.1. It is named after ...
webmineral.com
webmineral.com
andradite
andradite Min. (ˈændrədaɪt) [f. d'Andrada (see quot. under allochroite) + -ite.] A variety of lime-irongarnet.1868 Dana Syst. Min. (ed. 5) 268 Named Andradite by the author after the Portuguese mineralogist d'Andrada, who described and named the first of the included subvarieties, Allochroite. The i...
Oxford English Dictionary
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Andradite Garnet Value, Price, and Jewelry Information - Gem Society
Andradite is one of the most sought after garnet species. Although more sources have been discovered in recent decades, gem-quality andradites remain rare.
www.gemsociety.org
www.gemsociety.org
[PDF] Andradite Ca3Fe (SiO4)3 - RRuff
Optical Properties: Transparent to translucent. Color: Yellow, greenish yellow to emerald-green, dark green; brown, brownish red, brownish yellow; ...
rruff.geo.arizona.edu
rruff.geo.arizona.edu
Andradite Garnet Gemstones
Explore Andradite Garnet, mostly found in Madagascar, a radiant gem with colors from yellow-green to brownish-red, known for its dazzling luster and rarity.
naturalgemstones.com
naturalgemstones.com
ALEX STREKEISEN-Andradite-
This is a rather rare garnet, bright green in color, usually found as small crystals associated with chromite in peridotite, serpentinite, and kimberlites. It ...
www.alexstrekeisen.it
www.alexstrekeisen.it
Andradite (var. demantoid)
The rarest and most valuable garnet gem is the green to yellowish-green variety of the mineral andradite, called demantoid.
naturalhistory.si.edu
naturalhistory.si.edu
Andradite Mineral Specimens - iRocks.com
Welcome to this month's Rock Roundup! Here, we showcase some of the most exciting and favorite specimens recently available for sale. If you ...
www.irocks.com
www.irocks.com
Rodingite
Rodingite is a metasomatic rock composed of grossular-andradite garnet, calcic pyroxene, vesuvianite, epidote and scapolite.
wikipedia.org
en.wikipedia.org
allochroite
allochroite Min. (æˈlɒkrəʊaɪt) [mod. f. Gr. ἀλλόχρο-ος (see prec.) + -ite, min. form.] An iron-garnet, made by Dana a sub-variety of Andradite, found in Norway and elsewhere.1837–80 Dana Min. 269 Named Andradite by the author after the Portuguese mineralogist, d'Andrada, who described and named [180...
Oxford English Dictionary
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spandite
spandite Min. (ˈspændaɪt) [Blend of spessartite and andradite.] A manganiferous garnet resembling spessartine but containing more iron and calcium.1907 Rec. Geol. Survey India XXXV. 22 The garnet is intermediate in composition between spessartite and andradite, and..Mr. Fermor proposes to introduce ...
Oxford English Dictionary
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1월 일별 탄생석 정리 : 네이버 블로그
Topazolite (Garnet) - National Gem Lab. Topazolite is a yellow to golden yellow variety of Andradite Garnet which is a member of the Garnet Group of minerals that includes Almandine, Andradite, Grossular, Pyrope, Spessartine and Uvarovite. Other varieties of Andradite include Demantoid and Melanite.
m.blog.naver.com