List of articles in "Chemical Substance" category - Page 882

Leadhillite is a lead sulfate carbonate hydroxide mineral often associated with anglesite. It has the formula Pb4SO4(CO3)2(OH)2. Leadhillite crystallises in the monoclinic system but develops pseudo-hexagonal forms due to crystal […]

Lazulite ((MgFe2+)Al2(PO4)2(OH)2) is a blue phosphate mineral containing magnesium iron and aluminium phosphate. Lazulite forms one endmember of a solid solution series with the darker iron rich scorzalite.Lazulite crystallizes in […]

Laurite is an opaque black metallic ruthenium sulfide mineral with formula: RuS2. It crystallizes in the isometric system. It is in the pyrite structural group. Though rare it occurs in […]

Laumontite is a mineral one of the zeolite group. Its molecular formula is Ca(AlSi2O6)2·4H2O a hydrated calcium-aluminium silicate. Potassium or sodium may substitute for the calcium but only in very […]

Tetraamminecopper(II) sulfate is the inorganic compound with the formula [Cu(NH3)4(H2O)n]SO4. This dark blue solid is a metal complex. It is closely related to Schweizer’s reagent which is used for the […]

Annabergite is an arsenate mineral consisting of a hydrous nickelarsenate Ni3(AsO4)2·8H2O crystallizing in the monoclinic system and isomorphous with vivianite and erythrite. Crystals are minute and capillary and rarely met […]

Maleic acid or cis-butenedioic acid is an organic compound that is a dicarboxylic acid a molecule with two carboxyl groups. Its chemical formula is HO2CCHCHCO2H. Maleic acid is the cis-isomer […]

Molybdite is the naturally occurring mineral form of molybdenum trioxide MoO3. It occurs as yellow to greenish needles and crystallizes in the orthorhombic crystal system.

Oldhamite is a calcium magnesium sulfide mineral with formula (Ca Mg)S. Ferrous iron may also be present in the mineral resulting in the formula: (CaMgFe)S. It is a pale to […]

Siderotil is an iron(II) sulfate hydrate mineral with formula: FeSO4·5H2O which forms by the dehydration of melanterite. Copper commonly occurs substituting for iron in the structure. It typically occurs as […]