Thanks for using this online dictionary, we have been helping millions of people improve their use of the english language with its free online services. English definition of quartz is as below...

Granite :: Granite (n.) A crystalline, granular rock, consisting of quartz, feldspar, and mica, and usually of a whitish, grayish, or flesh-red color. It differs from gneiss in not having the mica in planes, and therefore in being destitute of a schistose structure..

Flint :: Flint (n.) A massive, somewhat impure variety of quartz, in color usually of a gray to brown or nearly black, breaking with a conchoidal fracture and sharp edge. It is very hard, and strikes fire with steel..

Pseudomorph :: Pseudomorph (n.) A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution..

Slickens :: Slickens (n.) The pulverized matter from a quartz mill, or the lighter soil of hydraulic mines..

Pollucite :: Pollucite (n.) A colorless transparent mineral, resembling quartz, occurring with castor or castorite on the island of Elba. It is a silicate of alumina and caesia. Called also pollux..

Capel :: Capel (n.) A composite stone (quartz, schorl, and hornblende) in the walls of tin and copper lodes..

Sagenitic :: Sagenitic (a.) Resembling sagenite; -- applied to quartz when containing acicular crystals of other minerals, most commonly rutile, also tourmaline, actinolite, and the like..

Crystalline :: Crystalline (a.) Imperfectly crystallized; as, granite is only crystalline, while quartz crystal is perfectly crystallized..

Bipyramidal :: Bipyramidal (a.) Consisting of two pyramids placed base to base; having a pyramid at each of the extremities of a prism, as in quartz crystals..

Citrine :: Citrine (n.) A yellow, pellucid variety of quartz..

Graduate :: Graduate (v. i.) To pass by degrees; to change gradually; to shade off; as, sandstone which graduates into gneiss; carnelian sometimes graduates into quartz..

Silica :: Silica (n.) Silicon dioxide, SiO/. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder..

Hornstone :: Hornstone (n.) A siliceous stone, a variety of quartz, closely resembling flint, but more brittle; -- called also chert..

Schist :: Schist (n.) Any crystalline rock having a foliated structure (see Foliation) and hence admitting of ready division into slabs or slates. The common kinds are mica schist, and hornblendic schist, consisting chiefly of quartz with mica or hornblende and often feldspar..

Polianite :: Polianite (n.) Manganese dioxide, occurring in tetragonal crystals nearly as hard as quartz..

Quartzy :: Quartzy (a.) Quartzose.

Trapezohedron :: Trapezohedron (n.) A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals..

Cacholong :: Cacholong (n.) An opaque or milk-white chalcedony, a variety of quartz; also, a similar variety of opal..

Reef :: Reef (n.) A large vein of auriferous quartz; -- so called in Australia. Hence, any body of rock yielding valuable ore..

Gneiss :: Gneiss (n.) A crystalline rock, consisting, like granite, of quartz, feldspar, and mica, but having these materials, especially the mica, arranged in planes, so that it breaks rather easily into coarse slabs or flags. Hornblende sometimes takes the place of the mica, and it is then called hornblendic / syenitic gneiss. Similar varieties of related rocks are also called gneiss..

Random Fonts

Most Popular