Fluororichterite
Fluororichterite is a rare amphibole with formula Na(NaCa)Mg5Si8O22F2. It was recognized by the International Mineralogical Association in 1994. Its name is derived from its fluorine…
Geographic Minerals
Fluorcaphite: Properties and Occurrences
Fluorcaphite is a mineral with the chemical formula (Ca, Sr, Ce, Na)5(PO4)3F. It is a hexagonal-pyramidal mineral containing calcium, cerium, fluorine, oxygen, phosphorus, sodium, and…
Fluorapophyllite
Fluorapophyllite is a mineral of the apophyllite group, with the chemical formula of KCa4Si8O20(F, OH)·8(H2O). It is a particular apophyllite mineral with more fluorine than…
Fluorapatite: Properties and Occurrences
Fluorapatite, often with the alternate spelling of fluoroapatite, is a phosphate mineral with the formula Ca5(PO4)3F (calcium fluorophosphate). It is a crystalline mineral, formed from…
Fluor-uvite
Fluor-uvite is a tourmaline mineral with the chemical formula CaMg3(Al5Mg)(Si6O18)(BO3)3(OH)3F. It is a rare mineral that is found in calcium-rich contact metamorphic rocks with increased…
Fluor-liddicoatite
Fluor-liddicoatite is a rare member of the tourmaline group of minerals and elbaite subgroup. It forms a series with elbaite and probably also with olenite.…
Fluocerite: Properties and Occurrences
Fluocerite is a mineral, a cerium, lanthanum fluoride, formula (Ce, La)F3. It is a mineral consisting of a reddish yellow fluoride of cerium and related…
Fluoborite
Fluoborite has a chemical formula of Mg3(BO3)(F, OH)3. Fluoborite having a hexagonal crystal system was first described in 1926 from the Huerta del Vinagre mine,…
Fluellite: Properties and Occurrence
Fluellite is a mineral with the chemical formula Al2(PO4)F2(OH)•7H2O. It is a mineral consisting of aluminum fluoride in colorless or white crystals. It is an…
Fluckite: Properties and Occurrence
Fluckite is an arsenate mineral with the chemical formula CaMnH2(AsO4)2·2(H2O). It is a rare mineral of post-mine origin that forms as a low-temperature product of…
Fletcherite: Properties and Occurrences
Fletcherite is a rare thiospinel sulfide mineral with formula Cu(Ni, Co)2S4. It is an isometric-hexoctahedral steel-gray mineral containing cobalt, copper, nickel, and sulfur. It is…
Fichtelite: Properties and Occurrence
Fichtelite is a rare white mineral found in fossilized wood from Bavaria. It is a rare white monoclinic mineral found in fossilized wood from Bavaria.…
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