alteration product

См. также в других словарях:

• hydrosphere — /huy dreuh sfear /, n. the water on or surrounding the surface of the globe, including the water of the oceans and the water in the atmosphere. [1885 90; HYDRO 1 + SPHERE] * * * Discontinuous layer of water at or near the Earth s surface. It… …   Universalium

• olivine — olivinic /ol euh vin ik/, olivinitic /ol euh vi nit ik/, adj. /ol euh veen , ol euh veen /, n. Mineral. any of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive green to gray green masses as an important constituent of basic… …   Universalium

• Palagonite — is an alteration product from the interaction of water with volcanic glass of chemical composition similar to basalt. Palagonite can also result from the interaction between water and basalt melt. The water flashes to steam on contact with the… …   Wikipedia

• Actinolite — For the community in Canada, see Actinolite, Ontario. Actinolite Actinolite crystal from Portugal General Category …   Wikipedia

• Chlorite group — For the chemistry term, see chlorite. Chlorite group General Category Mineral Chem …   Wikipedia

• rhyolite — rhyolitic /ruy euh lit ik/, adj. /ruy euh luyt /, n. a fine grained igneous rock rich in silica: the volcanic equivalent of granite. [1865 70; rhyo (irreg. < Gk rhýax stream of lava) + LITE] * * * Igneous rock that is the volcanic equivalent of… …   Universalium

• Leucoxene — is a fine granular alteration product of titanium minerals. It varies in color from yellow to brown. It is not a valid mineral species and consists mainly of rutile or anatase. It is observed in some igneous rocks and iron ore deposits as the… …   Wikipedia

• Margarite — This article refers about a member of the mica group, and should not be confused with margarita . Margarite Margarite from the Wright Mine, Chester Emery Mines, Chester, Hampden County, Massachusetts, USA. Size: 4.8 x 3.4 x 2.6 cm. General …   Wikipedia

• bismutite — /biz meuh tuyt /, n. a mineral, bismuth carbonate, resulting from the alteration of bismuth minerals: a minor source of bismuth. [ < G Bismutit, equiv. to Bismut BISMUTH + it ITE1] * * * ▪ mineral       a bismuth subcarbonate, (BiO)2CO3, that has …   Universalium

• Cotunnite — General Category Halide mineral Chemical formula PbCl2 Strunz classification 03.DC.85 Crystal symmetry Orthorhombic (2/ …   Wikipedia

• Ilmenite — from Miask, Ilmen Mts, Chelyabinsk Oblast , Southern Urals, Urals Region, Russia. 4.5 x 4.3 x 1.5 cm General Category Oxide mineral …   Wikipedia