uvarovite


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u·va·rov·ite

 (yo͞o-vär′ə-vīt′, o͞o-)
n.
An emerald-green variety of garnet, Ca3Cr2(SiO4)3, found in chromium deposits.

[After Count Sergei Semenovitch Uvarov (1785-1855), president of the St. Petersburg Academy.]

uvarovite

(uːˈvɑːrəˌvaɪt)
n
(Minerals) an emerald-green garnet found in chromium deposits: consists of calcium chromium silicate. Formula: Ca3Cr2(SiO4)3
[C19: from German Uvarovit; named after Count Sergei S. Uvarov (1785–1855), Russian author and statesman]

u•va•rov•ite

(uˈvɑr əˌvaɪt, yu-)

n.
the rarest of the garnets, colored emerald-green by the presence of chromium.
[< German (1832), after Count S. S. Uvarov (1785–1855), president of St. Petersburg Academy]
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References in periodicals archive ?
Uvarovite is a also a rare garnet, has a green emerald color and occurs as fine sized crystals.
Des Esseintes composes a bouquet of flowers out of gems: "the leaves were set with gems of a strong and definite green--asparagus-green chrysoberyls, leek-green peridots, olive green olivines--and these sprang from twigs of almandine and uvarovite of a purplish red .
Being an etymologist she searches for herself in dictionaries and relishes the "lovely words: pyrolusite, ignimbrite, omphacite, uvarovite, glaucophane, schist, shale, gneiss, tuff.
aeiou words: armigerous, epuration, inquorate, ossuaries, uvarovite lesser-known counterparts: epizootic, anile, estivate, thegosis, trilemma reversible words (semordnilaps): avid, ogre, debut, nonet, rebus words for odds & ends: aglet, chad, tittle, grommet, pintle spell-checker demons: impassible, wether, specie, angary, demur words from placenames: Ultima Thule, El Dorado, Timbuktu, Brigadoon, stoic
Uvarovite, chromium rich garnets, as well as chrome diopsides with high chromium content were identified in the upper part of the hole.
au) had two intriguing miniature-size matrix pieces--having recently obtained ten of the same kind, he said--showing extraordinary uvarovite crystals partially embedded in veins of slightly smoky, massive quartz in gneissic matrix.
These include arseniosiderite, bromargyrite, cabalzarite, chalcophyllite, clinoclase, clinotyrolite, cobaltkoritnigite, cornubite, fornacite, geminite, litharge, mottramite, nickellotharmeyerite, novacekite, parnauite, powellite, uvarovite, walentaite, wulfenite, yukonite and zalesiite.
Like the much better known, deep green crystals of uvarovite and chromian titanite from this giant chromite deposit, the chromian amesite druses are exposed by the etching-away of the calcite which fills the seams and veins.