Geigerite: Properties and Occurrences
Geigerite is a mineral, a complex hydrous manganese arsenate with the formula: Mn5(AsO3OH)2(AsO4)2·10H2O. It is a triclinic-pinacoidal mineral containing arsenic, hydrogen, manganese, and oxygen. It…
Geographic Minerals
Gehlenite: Properties and Occurrences
Gehlenite, Ca2Al[AlSiO7], is a sorosilicate, Al-rich endmember of the melilite complete solid solution series with akermanite. It is a particular kind of sorosilicate. It is…
Geerite: Properties and Occurrences
Geerite is a copper sulfide mineral with the chemical formula Cu8S5. It is a trigonal bluish white mineral containing copper and sulfur. It has been…
Gedrite: Properties and Occurrences
Gedrite is a crystal belonging to the orthorhombic ferromagnesian subgroup of the amphibole supergroup of the double chain inosilicate minerals with the ideal formula: Mg2(Mg3Al)(Si6Al2)O22(OH)2.…
Gaylussite: Properties and Occurrences
Gaylussite is a carbonate mineral, a hydrated sodium calcium carbonate, formula Na2Ca(CO3)2·5H2O. It is named for French chemist and physicist J. L. Gay-lussac. It is…
Gatehouseite
Gatehouseite is a manganese hydroxy-phosphate mineral with formula Mn5(PO4)2(OH)4. It is a mineral containing hydrogen, manganese, oxygen, and phosphorus. First discovered in 1987, it was…
Gaspéite: Properties and Occurrences
Gaspéite, a very rare nickel carbonate mineral, with the formula (Ni, Fe, Mg)CO3, is named for the place it was first described, in the Gaspé…
Garnets: Properties
Garnets are a group of silicate minerals that have been used since the Bronze Age as gemstones and abrasives. It is a precious stone consisting…
Gananite: Properties and Occurrences
Gananite is a rare bismuth fluoride mineral form of bismuth trifluoride with a general formula of BiF3. It is an isometric-hextetrahedral gray mineral containing bismuth…
Galkhaite: Properties and Occurrences
Galkhaite is a rare and chemically complex sulfosalt mineral from a group of natural thioarsenites. It is an isometric-hextetrahedral mineral containing antimony, arsenic, cesium, copper,…
Galena: Properties sand Occurrences
Galena, also called lead glance, is the natural mineral form of lead(II) sulfide. It is the most important ore of lead and an important source…
Galaxite: Properties and Occurrences
Galaxite, also known as ‘mangan-spinel’ is an isometric mineral belonging to the spinel group of oxides with the ideal chemical formula Mn2+Al2O4. It is a…
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