Science

Jarosite is a basic hydrous sulfate of potassium and iron with a chemical formula of KFe33+(OH)6(SO4)2. It is an ocher-yellow or brown mineral, consisting of…

Jarosewichite is a rare manganese arsenate mineral with formula: Mn23+Mn3+(AsO4)(OH)6. It was first described in Franklin, New Jersey which is its only reported occurrence. Its…

Janggunite is a rare manganese oxide mineral with formula Mn5-x(Mn, Fe)1+xO8(OH)6. It is an orthorhombic black mineral containing hydrogen, iron, manganese, and oxygen. It was…

Jamesonite is a sulfosalt mineral, a lead, iron, antimony sulfide with formula Pb4FeSb6S10. It is one of a few sulfide minerals that form fine acicular…

Jalpaite is a rare copper silver sulfide mineral with formula Ag3CuS2. It is a mineral consisting of cupriferous argentite. It is a rare copper silver…

Jaffeite is a hydrated calcium silicate with the following chemical formula: Ca6Si2O7(OH)6. It is a hydrated calcium silicate mineral. The mineral was first found at…

Jadeite is a pyroxene mineral with composition NaAlSi2O6. It is monoclinic. It is a usually green monoclinic mineral of the pyroxene group that is a…

Jadarite is a white, earthy monoclinic silicate mineral, whose chemical formula is LiNaSiB3O7(OH) or Na2OLi2O(SiO2)2(B2O3)3H2O. It is a mineral, sodium lithium boron silicate hydroxide. It…

Jacobsite is a manganese iron oxide mineral. It is in the spinel group and forms a solid solution series with magnetite. The chemical formula is…

Vesuvianite, also known as idocrase, is a green, brown, yellow, or blue silicate mineral. It is named after the Mount Vesuvius, where it was first…

Cordierite (mineralogy) or iolite (gemology) is a magnesium iron aluminum cyclosilicate. It is normally used for applications that required high temperatures and are subject to…

Ixiolite is an accessory oxide mineral found in granitic pegmatites. It is an oxide with the general chemical formula (Ta, Nb, Sn, Mn, Fe)4O8 or…