Mineral Specimen Images (F)

Fluorcaphite: (Ca,Sr,Ce,Na)5(PO4)3F

Comments: Massive, coarsely crystalline, pale yellowish fluorcaphite.
Location: Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Fluorcaphite: (Ca,Sr,Ce,Na)5(PO4)3F

Comments: Massive, coarsely crystalline, pale yellowish fluorcaphite.
Location: Koashva Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Fluorite: CaF2

Comments: Cubic fluorite crystals with octahedral galena crystals. The largest crystal is 2.1 cm across. Note the exceptional fluorescence of these crystals.
Location: Rogerley Mine, in Weardale, England. Scale: 7.8 x 5.5.
© John Veevaert

Fluorite: CaF2  
Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)

Comments: Well-developed, prismatic, reddish creedite crystals on green fluorite.
Location: Mina Navidad, Rodeo, Durango, Mexico. Scale: 9 x 5 x 5.3 cm.
© Fabre Minerals

Fluorite: CaF2

Comments: Red-orange octahedral fluorite crystals on an albite matrix with well defined edges and faces.
Location: Pointe Kurz (3600 m altitude), Mont Blanc Massif, Haute-Savoie, France. Scale: Crystal size is 2.1 x 1.5 cm.
© Fabre Minerals

Fluorite: CaF2  
Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)

Comments: Well-developed, prismatic, reddish creedite crystals on green fluorite.
Location: Mina Navidad, Rodeo, Durango, Mexico. Scale: 9 x 5 x 5.3 cm.
© Fabre Minerals

Fluorite: CaF2

Comments: Red-orange octahedral fluorite crystals on an albite matrix with well defined edges and faces.
Location: Pointe Kurz (3600 m altitude), Mont Blanc Massif, Haute-Savoie, France. Scale: Crystal size is 2.1 x 1.5 cm.
© Fabre Minerals

Fluorite: CaF2

Comments: Cubic fluorite crystals with octahedral galena crystals. The largest crystal is 2.1 cm across. Note the exceptional fluorescence of these crystals.
Location: Rogerley Mine, in Weardale, England. Scale: 7.8 x 5.5.
© John Veevaert

Fluornatromicrolite: (Na,Ca,Bi)2Ta2O6F

Comments: Dark green crystals of fluornatromicrolite in massive white albite..
Location: Alto Quixaba Pegmatite, Quixaba, Frei Martinho, Paraiba, Brazil. Scale: Specimen size 3.8 cm.
© Thomas Witzke

Fluornatromicrolite: (Na,Ca,Bi)2Ta2O6F

Comments: Dark green crystals of fluornatromicrolite in massive white albite..
Location: Alto Quixaba Pegmatite, Quixaba, Frei Martinho, Paraiba, Brazil. Scale: Specimen size 3.8 cm.
© Thomas Witzke

Fluorocannilloite: CaCa2(Mg4Al)Si5Al3O22F2

Comments: Greenish, prismatic crystals of fluorocannilloite in matrix.
Location: Yuang Yang Province, Yunnan, China. Scale: Picture size 6 cm.
© Dave Barthelmy

Fluorocannilloite: CaCa2(Mg4Al)Si5Al3O22F2

Comments: Greenish, prismatic crystals of fluorocannilloite in matrix.
Location: Yuang Yang Province, Yunnan, China. Scale: Picture size 6 cm.
© Dave Barthelmy

Fluoro-edenite: NaCa2Mg5Si7AlO22(F,OH)2

Comments: Two, tabular crystals of fluoro-edenite on matrix.
Location: Mt. Calvario, (Mt. Etna Volcano), Biancavilla, Catania Province, Sicily, Italy. Scale: Picture size 1.8 mm.
© Thomas Witzke / Abraxas-Verlag

Fluoro-edenite: NaCa2Mg5Si7AlO22(F,OH)2

Comments: Two, tabular crystals of fluoro-edenite on matrix.
Location: Mt. Calvario, (Mt. Etna Volcano), Biancavilla, Catania Province, Sicily, Italy. Scale: Picture size 1.8 mm.
© Thomas Witzke / Abraxas-Verlag

Fluoro-ferroleakeite: NaNa2(Fe++2Fe+++2Li)Si8O22F2

Comments: Heavy mineral concentrate of dark blue to black fluoro-ferroleakeite grains, co-type sample.
Location: Questa, Taos County, New Mexico, USA. Scale: See Image.
© Rruff Database

Fluoro-ferroleakeite: NaNa2(Fe++2Fe+++2Li)Si8O22F2

Comments: Euhedral crystal of dark green fluoro-ferroleakeite with a lighter green aegirine rim in an agpaitic rare metal granite. Associated mineral is orange magmatic calcian elpidite with white albite.
Location: Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia. Scale: FOV is 12x10 mm.
© Pavel M. Kartashov

Fluoro-ferroleakeite: NaNa2(Fe++2Fe+++2Li)Si8O22F2

Comments: Heavy mineral concentrate of dark blue to black fluoro-ferroleakeite grains, co-type sample.
Location: Questa, Taos County, New Mexico, USA. Scale: See Image.
© Rruff Database

Fluoro-ferroleakeite: NaNa2(Fe++2Fe+++2Li)Si8O22F2

Comments: Euhedral crystal of dark green fluoro-ferroleakeite with a lighter green aegirine rim in an agpaitic rare metal granite. Associated mineral is orange magmatic calcian elpidite with white albite.
Location: Khaldzan Buragtag massif, Altai Mts, Hovd Aimag (Khovd Aimag), Mongolia. Scale: FOV is 12x10 mm.
© Pavel M. Kartashov

Fluoro-magnesio-arfvedsonite: NaNa2(Mg,Fe++)4Fe+++[Si8O22](F,OH)2

Comments: Heavy mineral concentrate of small dark green fragments of fluoro-magnesio-arfvedsonite.
Location: Unknown. Scale: See Image.
© Rruff Database

Fluoro-magnesio-arfvedsonite: NaNa2(Mg,Fe++)4Fe+++[Si8O22](F,OH)2

Comments: Heavy mineral concentrate of small dark green fragments of fluoro-magnesio-arfvedsonite.
Location: Unknown. Scale: See Image.
© Rruff Database