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What is the meaning of QUARTZ. Phrases containing QUARTZ
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n.
Ferruginous quartz, of a blood-red or brownish red color, sometimes with a tinge of yellow.
n.
A pigment obtained, usually by roasting cobalt glance with sand or quartz, as a dark earthy powder. It consists of crude cobalt oxide, or of an impure cobalt arseniate. It is used in porcelain painting, and in enameling pottery, to produce a blue color, and is often confounded with smalt, from which, however, it is distinct, as it contains no potash. The name is often loosely applied to mixtures of zaffer proper with silica, or oxides of iron, manganese, etc.
n.
A tetartohedral solid of the hexagonal system, bounded by six trapezoidal planes. The faces of this form are common on quartz crystals.
a.
Quartzose.
n.
An indigo-blue variety of quartz.
a.
Consisting chiefly of quartz; containing quartz.
a.
Containing, or resembling, quartz; partaking of the nature or qualities of quartz.
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.
n.
A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.
v. t.
A deep blue pigment or coloring material used in various arts. It is a vitreous substance made of cobalt, potash, and calcined quartz fused, and reduced to a powder.
n.
The nonmetalliferous mineral or rock material which accompanies the ores in a vein, as quartz, calcite, barite, fluor spar, etc.; -- called also veinstuff.
n.
Pure silica, like quartz, but crystallizing in hexagonal tables. It is found in trachyte and similar rocks.
n.
Acicular rutile occurring in reticulated forms imbedded in quartz.
n.
Silicon dioxide, SiO/. It constitutes ordinary quartz (also opal and tridymite), and is artifically prepared as a very fine, white, tasteless, inodorous powder.
n.
Orig., a rock composed of quartz, hornblende, and feldspar, anciently quarried at Syene, in Upper Egypt, and now called granite.
n.
A form of crystal common with quartz, consisting of two six-sided pyramids, base to base.
n.
The pulverized matter from a quartz mill, or the lighter soil of hydraulic mines.
a.
Resembling sagenite; -- applied to quartz when containing acicular crystals of other minerals, most commonly rutile, also tourmaline, actinolite, and the like.
n.
A nonmetalic element analogous to carbon. It always occurs combined in nature, and is artificially obtained in the free state, usually as a dark brown amorphous powder, or as a dark crystalline substance with a meetallic luster. Its oxide is silica, or common quartz, and in this form, or as silicates, it is, next to oxygen, the most abundant element of the earth's crust. Silicon is characteristically the element of the mineral kingdom, as carbon is of the organic world. Symbol Si. Atomic weight 28. Called also silicium.
n.
Massive quartz occurring as a rock; a metamorphosed sandstone; -- called also quartz rock.
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