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vesuvianite

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ve·su·vi·an·ite  (v-sv--nt)
n.
A green, brown, yellow, or blue metamorphic silicate mineral, Ca10Mg2Al4(SiO4)5(Si2O7)2(OH)4. Also called idocrase.

[First found in old lava on Mount Vesuvius.]

vesuvianite [vɪˈsuːvɪəˌnaɪt]
n
(Earth Sciences / Minerals) a green, brown, or yellow mineral consisting of a hydrated silicate of calcium, magnesium, iron, and aluminium: it occurs as tetragonal crystals in limestones and is used as a gemstone. Formula: Ca10(Mg,Fe)2Al4Si9O34(OH)4 Also called idocrase vesuvian
[first found in the lava of Vesuvius]
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.vesuvianite - a green or yellow or brown mineral consisting of a hydrated silicate; it occurs as crystals in limestone and is used a gemstone
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition


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She chooses the blues of lapis lazuli and azurite from Chile; the greens of malachite and earth from Verona, Italy; the yellow ochres from France; the red siennas from Italy and cinnabars from China; the browns of raw umbers from Cyprus; the purple of vesuvianite from South Africa; and the luminous whites of oyster shells from Japan.
The veins are surrounded by a 5- to 10-cm-wide alteration zone that consists of calcite, dolomite, diopside, hedenbergite, vesuvianite, and base-metal sulfides.
 
 
 
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