Realgar α-As4S4 is an arsenic sulfide mineral also known as ruby sulphur or ruby of arsenic. It is a soft sectile mineral occurring in monoclinic crystals or in granular compact […]
List of articles in "Chemical Substance" category - Page 975
Murdochite
Murdochite is a mineral combining lead and copper oxides with formula PbCu6O8-x(ClBr)2x(x ≤ 0.5).It was first discovered in 1953 in the Mammoth-Saint Anthony Mine in Pinal County Arizona by Percy […]
Dioptase
Dioptase is an intense emerald-green to bluish-green copper cyclosilicate mineral. It is transparent to translucent. Its luster is vitreous to sub-adamantine. Its formula is CuSiO3·H2O (also reported as CuSiO2(OH)2). It […]
Cuprite
Cuprite is an oxide mineral composed of copper(I) oxide Cu2O and is a minor ore of copper.Its dark crystals with red internal reflections are in the isometric system hexoctahedral class […]
Creedite
Creedite is a calcium aluminium sulfate fluoro hydroxide mineral with formula: Ca3Al2SO4(FOH)10·2(H2O). Creedite forms colorless to white to purple monoclinic prismatic crystals. It often occurs as acicular radiating sprays of […]
Colemanite
Colemanite (CaB3O4(OH)3·H2O) is a borate mineral found in evaporite deposits of alkaline lacustrine environments. Colemanite is a secondary mineral that forms by alteration of borax and ulexite.It was first described […]
Autunite
Autunite (hydrated calcium uranyl phosphate) with formula: Ca(UO2)2(PO4)2·10-12H2O is a yellow – greenish fluorescent mineral with a hardness of 2 – 2½. Autunite crystallizes in the orthorhombic system and often […]
Aurichalcite
Aurichalcite is a carbonate mineral usually found as a secondary mineral in copper and zinc deposits. Its chemical formula is (ZnCu)5(CO3)2(OH)6. The zinc to copper ratio is about 5:4.
Benzyl alcohol
Benzyl alcohol is an aromatic alcohol with the formula C6H5CH2OH. The benzyl group is often abbreviated Bn (not to be confused with Bz which is used for benzoyl) thus benzyl […]
Chalcocite
Chalcocite copper(I) sulfide (Cu2S) is an important copper ore mineral. It is opaque being colored dark-gray to black with a metallic luster. It has a hardness of 2½ – 3 […]