Geographic Minerals

Bityite is considered a rare mineral, and it is an endmember to the margarite mica sub-group found within the phyllosilicate group. It is a late-stage…

Bismutite or bismuthite is a bismuth carbonate mineral with formula Bi2(CO3)O2 (bismuth subcarbonate). It was named in allusion to the bismuth in its composition. It…

Bismuthinite is a mineral consisting of bismuth sulfide (Bi2S3). It is an uncommon bismuth mineral that forms in interesting crystal habits. It is an important…

Bismuth is a chemical element with symbol Bi and atomic number 83. It is mainly used as an alloying component in fusible alloys. Elemental bismuth…

Bismite is a bismuth oxide mineral, bismuth trioxide or Bi2O3.  The mineral was named after the presence of bismuth in its composition. It is a…

Bischofite is a hydrous magnesium chloride mineral with formula MgC12·6H2O. is a hydrous magnesium chloride mineral that was first discovered in 1877 from the Leopoldshall and…

Birnessite (Na0.3Ca0.1K0.1)(Mn4+, Mn3+)2O4·1.5 H2O is an oxide mineral of manganese along with calcium, potassium, and sodium. The mineral was first described in 1956 from the…

Biotite is a common phyllosilicate mineral within the mica group, with the approximate chemical formula K(Mg, Fe)3AlSi3O10(F, OH)2. The name “biotite” is used in the…

Billwiseite is a very rare oxide mineral found at the pegmatite commonly referred to as “Stak Nala” located within a few hundred yards from the…

Billietite is an uncommon mineral of Uranium that contains Barium. It has the chemical formula: Ba(UO2)6O4(OH)6•8H2O. Billietite is named after Valere Louis Billiet (1903–1944), Belgian…

Bílinite, formula- [Fe2+ Fe23+(SO4)·22H2O] is an iron sulfate mineral. It is a product of the oxidation of pyrite in water. It is an acidic mineral…

Biehlite is an exceptionally rare mineral, an antimony arsenic-bearing molybdate with formula [(Sb, As)O]2MoO4. It is a rare secondary mineral from an oxidized zone in…