Vitreous luster

All micas have a vitreous luster phlogopite luster can range from vitreous to submetaUic. 

ANALCIME. A common zeolite mineral, NaAlSi2C>6 H20, a hydrous soda-aluminum silicate. It crystallizes in the isometric system, hairiness, 5-5.5 specific gravity, 2.2. vitreous luster colorless to white but may be grayish, greenish, yellowish, or reddish. Its trapezohedral crystal resembles garnet but is softer it is distinguished from lcucitc only by chemical tests. 

ANTLEKITE. Antlerite is a relatively uncommon mineral found within the oxidized zones of copper deposits in arid regions. It is a basic sulfate of copper. Cui(S04)(0H)a, crystallizing in the orthorhombic system. Hardness of 3.5. specific gravity 3.88, with vitreous luster, and emerald-green to black-green color. 

BROCHANTITE. A mineral composed of basic copper sulfate corresponding to the formula Cut (S04)(OH)/, crystallizing in the monoclinic system in needle-like prisms, or forming druses or masses. Hardness, 3.5-4 specific gravity, 3.9 vitreous luster color, green streak, green transparent to translucent. 

POLYHALITE. Polyhalite, K Ca, MgfSO - 2H 0 is a late evaporate mineral associated with halite, sylvite and carnallite from the famous oceanic salt deposits at Stassfurt, Germany. and near Carlsbad, New Mexico. It is of triclinic crystallization, with color grading from gray to brick-red hardness, 3-3,5 specific gravity 2.78 translucent with vitreous luster very biller Uste. It is a source uf potassium. 

Following are the definitions of the above terms Common banded is the common variety of bituminous and subbituminous coals it consists of a sequence of irregularly alternating layers of lenses of a homogeneous blk material having a brilliant vitreous luster a grayish-blk less brilliant striated material usually of silky luster and thin bands or lenses of soft powder and fibrous particles, known as (usain or mineral charcoal. The difference in luster of the bands is greater... 

Jackson Hill 3 NAS 11 Quarry Dekalb Co., GA green-gray, vitreous luster 1 mm 20% 30%... 

Properties White, reddish, yellow, or brown color vitreous luster. D 2.1. Mohs hardness 4—5. 

Properties Color gray, pink, white vitreous luster. D 2.85, Mohs hardness 3.5—4 good cleavage in three directions. Similar to calcite but less soluble in acids (reacts with acid when powdered or with hot acid). Noncombustible. 

Properties A natural, hydrated, double salt of potassium and magnesium. White, gray, reddish, or colorless solid streak, colorless vitreous luster. D 2.05-2.13, hardness 2.5-3. Contains 30% potassium chloride. 

Properties Colorless, white, gray, or occasionally pink mineral, white streak, vitreous luster. Resembles spodumene in appearance. Contains up to 4.9% lithia, sometimes with partial replacement by sodium or less often by potassium. Insoluble in acids, d 2.39-2.46, Mohs hardness 6-6.5. 

Properties White, pale-green, emerald-green, pink, orpurple mineral white streak vitreous luster. Contains up to 8% lithium oxide with some replacement by sodium. D 3.13-3.20, Mohs hardness 6.5-7. Insoluble in acids. 

Properties White, gray, yellow, green color vitreous luster. Mohs hardness 3.5—4, d 3.7. 

Properties Colorless or white, bluish or reddish in color, white streak, vitreous luster, resembles rock salt in appearance. D 1.97-1.99, Mohs hardness 2. 

DOHP. See Dioleyl hydrogen phosphite DOlP. See Dioctyl isophthalate Dolcymene. Seep-Cymene Doiocron 15-16] Doiocron 32-15] Doiocron 40-13] Doiocron 45-12. See Calcium carbonate Dolomite CAS 16389-88-1 Classification Natural mineral Definition A carbonate of calcium and magnesium Empirical C2CaMgOe Formula CaCOs MgCOa Properties Gray, pink, or wh. color with vitreous luster dens. 2.85 hardness (Mohs) 3.5-4.0 noncombustible... 

Gypsum is very soft at 2 on hardness scale of Moho (Deer et al., 1992). Gypsum is so soft that a fingernail can easily scratch it. It is characterized by a monoclinic crystal system and a perfect cleave. The specific gravity of gypsum is 2,3. It has a white streak and a vitreous luster. 

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