Grunerite: Properties and Occurrences
Grunerite is a mineral of the amphibole group of minerals with formula Fe7Si8O22(OH)2. It is an iron-rich amphibole related to cummingtonite. The origin of the…
Geographic Minerals
Groutite: Properties and Occurrences
Groutite is a manganese oxide mineral with formula Mn3+O(OH). It is a mineral consisting of manganese, hydrogen, and oxygen, polymorphous with manganite, and belonging to…
Grossular: Properties and Occurrences
Grossular is a calcium-aluminum species of the garnet group of minerals. It is a mineral of the garnet group, consisting essentially of calcium aluminum silicate.…
Grossite: Properties and Occurrences
Grossite is a calcium aluminum oxide mineral with formula CaAl4O7. It is a monoclinic-prismatic mineral containing aluminum, calcium, and oxygen. It is a colorless to…
Greigite: Properties and Occurrences
Greigite is an iron sulfide mineral with formula Fe3S4 (Iron(II, III) sulfide). It is the sulfur equivalent of the iron oxide magnetite (Fe3O4). It is…
Greifensteinite
Greifensteinite is beryllium phosphate mineral with formula: Ca2Fe25+Be4(PO4)6(OH)4·6H2O. It is a monoclinic-prismatic dark olive green mineral containing aluminum, beryllium, calcium, hydrogen, iron, magnesium, manganese, oxygen,…
Gregoryite: Properties and Occurrences
Gregoryite is an anhydrous carbonate mineral that is rich in potassium and sodium with the formula: [(Na2, K2, Ca)CO3]. It is a mineral containing calcium,…
Greenockite: Properties and Occurrences
Greenockite is a rare cadmium bearing metal sulfide mineral consisting of cadmium sulfide (CdS) in crystalline form. Greenockite crystallizes in the hexagonal system. Although it…
Greenalite
Greenalite is a mineral in the kaolinite-serpentine group with the chemical composition (Fe2+, Fe3+)2-3Si2O5OH4. It is a member of the serpentine group. It is a…
Gratonite: Properties and Occurrences
Gratonite is a lead-arsenic sulfosalt mineral, with the chemical composition Pb9As4S15. It is a rare lead sulfide mineral. It is a mineral consisting of the…
Graphite: Properties and Occurrences
Graphite, archaically referred to as plumbago, is a crystalline allotrope of carbon, a semimetal, a native element mineral, and a form of coal. It is…
Grandreefite
Grandreefite is a rare secondary lead sulfate-fluoride mineral with a general chemical formula, Pb2SO4F2. It is a monoclinic-prismatic colorless mineral containing fluorine, lead, oxygen, and…
Load More