Nagyágite: Properties and Occurrences
Nagyágite [Pb5Au(Te, Sb)4S5-8] is a rare sulfide mineral with a known occurrence associated with gold ores. It is a mineral that is a sulfide of…
Geographic Minerals
Fuchsite (Mineral)
Fuchsite is a type of mica/Muscovite that crystallizes in the form of a plate such as layers, scales, masses, and tabular crystals, also known as…
Coesite – a form of silicon dioxide
Coesite is a high-pressure polymorph (crystal form) of silica, silicon dioxide (SiO2). It is a form (polymorph) of silicon dioxide SiO2 that is formed when…
Lechatelierite – a natural silica glass
Lechatelierite is a natural silica glass that has the same chemical composition as coesite, cristobalite, stishovite, quartz, and tridymite but has a different crystal structure.…
Nadorite: Properties and Occurrences
Nadorite is a mineral with the chemical formula PbSbO2Cl. It is a mineral consisting of a brownish yellow lead chloride and stibnite. It is a…
Seifertite – a silicate mineral
Seifertite is an orthorhombic mineral containing oxygen and silicon. It is a silicate mineral with the formula SiO2 and is one of the densest polymorphs…
Smithsonite Mineral
Zinc carbonate (ZnCO3), a mineral that was the main source of zinc until the 1880s, when it was substituted by sphalerite, is Smithsonite, also known…
Nacrite: Properties and Occurrences
Nacrite is a clay mineral, consisting of hydrous silicate of aluminum and being polymorphous with kaolinite. Its formula, Al2Si2O5(OH)4, is a clay mineral that is…
Clastic Rock
Deposited sediments can harden into rock over time; next, it compacts the sediments. That is, by the weight of sediments on top of them, they…
Nabesite: Properties and Occurrences
Nabesite is a rare silicate mineral of the zeolite group with the chemical formula Na2BeSi4O10·4(H2O). It is an orthorhombic-disphenoidal mineral containing beryllium, hydrogen, oxygen, silicon,…
Rose quartz – a type of quartz
Rose quartz is a type of quartz that exhibits a pale pink to rose red hue. A pink variety of quartz, that ranges from very…
Nabalamprophyllite: Properties and Occurrences
Nabalamprophyllite has a general formula of Ba(Na,Ba){Na3Ti[Ti2O2Si4O14](OH,F)2}. It is a monoclinic-prismatic mineral containing aluminum, barium, calcium, fluorine, hydrogen, iron, magnesium, manganese, oxygen, potassium, silicon, sodium,…
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