's Image Gallery

Fluckite: CaMn(HAsO4)2·2(H2O)

Comments: White to pale pink crystalline translucent botryoids of fluckite.
Location: Giftgrube, Sainte-Marie-aux-Mines, Alsace, Haute-Rhin, France. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fluellite: Al2(PO4)F2(OH)·7(H2O)

Comments: Tabular, transparent, pseudohexagonal crystals of fluellite.
Location: Tom's quarry, Kapunda, South Australia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Fluellite: Al2(PO4)F2(OH)·7(H2O)  
Bariosincosite: Ba(V++++O)2(PO4)2·4(H2O)

Comments: Vivid green crystals of bariosincosite well placed on a matrix covered by colorless, tabular fluellite with some minor metavariscite.
Location: Eugui Quarry, Cantera Azkarate, Eugui, Navarra, Spain. Scale: Rosette size: 0.3 x 0.2 cm.
© Fabre Minerals

Fluoborite: Mg3(BO3)(F,OH)3

Comments: Silky fibrous fluoborite with purple fluorite.
Location: Ludlaw, San Bernardino County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Fluorannite: KFe++3AlSi3O10F2

Comments: Blue crystal of fluorannite on matrix.
Location: Katugin Ta-­Nb deposit (Katuginskoye deposit), Chitinskaya Oblast', Transbaikalia (Zabaykalye), Eastern-Siberian Region, Russia. Scale: Crystal Size 4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Fluorbritholite-(Ce): (Ca,Ce,La,Na)5(SiO4,PO4)3(OH,F)

Comments: Amorphous (metamict) grain of fluorbritholite-(Ce) on matrix.
Location: Norra Karr, Grena, Jonkoping, Sweden. Scale: Crystal size 1 cm.
© John Veevaert

Fluorcalciobritholite: (Ca,REE)5[(Si,P)O4]3F

Comments: Reddish black fluorcalciobritholite grain from the type locality. Part of the holotype specimen.
Location: Tuliok River head, East slope, Kukisvumchorr Mt, Khibiny Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Grain Size 0.8 mm.
© Pavel M. Kartashov

Fluorcanasite: K3Na3Ca5Si12O30F4·H2O

Comments: Small fragment of translucent green fluorcanasite.
Location: Mt. Kukisvumchorr, Khibiny massif, Kola Peninsula, Russia. Scale: Specimen Size 8 x 5 x 2 mm.
© John Betts - Fine Minerals

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

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

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: 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-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-magnesiohastingsite: (Na,K)Ca2(Mg,Fe+++,Ti)5(Si,Al)8O22F2

Comments: Reddish brown aggregates of fluoro-magnesiohastingsite.
Location: Uroi Hill, Hunedoara County, Romania. Scale: Specimen size: 20x8x8 mm.
© Sergey Vasiliev / Systematic Mineralogy

Fluoro-sodic-pedrizite: NaLi2(Mg2Al2Li)?5Si8O22F2  
Clinoholmquistite: [ ](Li2Mg3Al2)Si8O22(OH)2  
Magnesioclinoholmquistite: Li2(Mg,Fe++)3Al2Si8O22(OH)2

Comments: Dark blue fibrous clinoholmquistite with radiating structure, variety magnesioclinoholmquistite. Clinoholmsquitite may be a new aphibole, fluoro-sodic-pedrizite..
Location: Near Murun, Republic of Sakha, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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