Miargyrite: properties and Occurrences
Miargyrite is a mineral, a sulfide of silver and antimony with the formula AgSbS2. It is an uncommon silver sulfosalt. It is a dimorph of…
Geographic Minerals
Meyerhofferite: Properties and Occurrences
Meyerhofferite is a mineral [Ca2B6O11.7H2O] consisting of a hydrous calcium borate. It is a hydrated borate mineral of calcium, with the chemical formula Ca2B6O6(OH)10·2H2O, CaB3O3(OH)5·H2O, or Ca2(H3B3O7)2·4H2O.…
Epsomite
Epsomite is most commonly formed by the deposition of material by saline springs as efflorescence on cave walls. It is a mineral of hydrous magnesium…
Polyhalite
Polyhalite, a mineral sulfate found in deposits of evaporite (K2Ca2Mg(SO4)4•2H2O) that also occurs with anhydrite and halite. It crystallizes in the triclinic system although it…
Metazeunerite: Properties and Occurrences
Metazeunerite is an arsenate mineral with a chemical formula of Cu(UO2)2(AsO4)2·8H2O. It is a mineral consisting of a hydrous arsenate of copper and uranium with…
Halite (Mineral)
Halite (/ˈhælaɪt/ or /ˈheɪlaɪt/) is a very common and well-known mineral, commonly known as rock salt; its chemical name is sodium chloride (Na Cl). It…
Kieserite
Kieserite (MgSO4·H2O) is the mineral for magnesium sulfate and found in deposits of evaporite. Named for Dietrich Georg Kieser (August 24, 1779, Harburg / Elbe-October…
Metatorbernite: Properties and Occurrences
Metatorbernite is a mineral Cu(UO2)2(PO4)2.8H2O consisting of a hydrous phosphate of copper and uranium containing less water than torbernite. It is a radioactive phosphate mineral…
Evaporite
Evaporite (/ɪˈvæpəraɪt/) some of the different minerals present in the sedimentary deposition of soluble salts resulting from the water evaporation. There are two types of…
Ulexite
Ulexite (NaCaB5O6(OH)6·5H2O, hydrated sodium calcium borate hydroxide), occurs with a silky luster as fibrous white or grey to colorless, clear, or translucent crystals. The white…
Carlosruizite
With its pale yellow color, Carlosruizite can be identified in the field. It is a mineral iodate with chemical formula-sulfate or selenate: K6(Na,K)4Na6Mg10(SeO4)12(IO3)12·12H2O. It is…
Metacinnabar: Properties and Occurrences
Metacinnabar is the cubic form of mercury sulfide (HgS). It is a mercury sulfide mineral that has the same chemical composition as cinnabar (HgS). It…
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