Rruff Database's Image Gallery

Dussertite: BaFe+++3(AsO4)2(OH)5

Comments: Light green hexagonal plates of dussertite lining vug associated with quartz and pharmacosiderite.
Location: Clara mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Wurttemberg, Germany. Scale: See Image.
© Rruff Database

Dussertite: BaFe+++3(AsO4)2(OH)5

Comments: Light green hexagonal plates of dussertite lining vug associated with quartz and pharmacosiderite.
Location: Clara mine, Rankach Valley, Oberwolfach, Wolfach, Black Forest, Baden-Wurttemberg, Germany. Scale: See Image.
© Rruff Database

Erionite-Ca: (Ca,K2,Na2)2[Al4Si14O36]·15(H2O)

Comments: Radiating group of colorless acicular hexagonal prisms of erionite-Ca.
Location: Moeraki, Otago, South Island, New Zealand. Scale: See Image.
© Rruff Database

Erionite-Ca: (Ca,K2,Na2)2[Al4Si14O36]·15(H2O)

Comments: Radiating group of colorless acicular hexagonal prisms of erionite-Ca.
Location: Moeraki, Otago, South Island, New Zealand. Scale: See Image.
© Rruff Database

Erionite-K: (K2,Ca,Na2)2[Al4Si14O36]·15(H2O)

Comments: Randomly oriented colorless prismatic erionite-K crystals in a vug.
Location: Chase Creek, Falkland, British Columbia, Canada. Scale: See Image.
© Rruff Database

Erionite-K: (K2,Ca,Na2)2[Al4Si14O36]·15(H2O)

Comments: Randomly oriented colorless prismatic erionite-K crystals in a vug.
Location: Chase Creek, Falkland, British Columbia, Canada. Scale: See Image.
© Rruff Database

Faizievite: K2Na(Ca6Na)Ti4Li6Si24O66F2

Comments: Pale brownish yellow massive faizievite associated with quartz.
Location: Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Districts of the Republican Subordination, Tajikistan. Scale: See Image.
© Rruff Database

Faizievite: K2Na(Ca6Na)Ti4Li6Si24O66F2

Comments: Pale brownish yellow massive faizievite associated with quartz.
Location: Dara-i-Pioz Glacier, Alayskiy (Alai) Range, Tien Shan Mts, Districts of the Republican Subordination, Tajikistan. Scale: See Image.
© Rruff Database

Faujasite-Ca: (Ca,Na2,Mg)3.5[Al7Si17O48]·32(H2O)

Comments: Isolated colorless octahedra faujasite-Ca in basalt vesicules.
Location: Table Mountain, San Bernardino County, California, USA. Scale: See Image.
© Rruff Database

Faujasite-Ca: (Ca,Na2,Mg)3.5[Al7Si17O48]·32(H2O)

Comments: Isolated colorless octahedra faujasite-Ca in basalt vesicules.
Location: Table Mountain, San Bernardino County, California, USA. Scale: See Image.
© Rruff Database

Faujasite-Mg: (Mg,Na2,Ca)3.5[Al7Si17O48]·32(H2O)

Comments: Colorless octahedra of faujasite-Mg in basalt vesicles.
Location: Limburg Quarries, Sasbach, Kaiserstuhl, Baden-Wurttemberg, Germany. Scale: See Image.
© Rruff Database

Faujasite-Mg: (Mg,Na2,Ca)3.5[Al7Si17O48]·32(H2O)

Comments: Colorless octahedra of faujasite-Mg in basalt vesicles.
Location: Limburg Quarries, Sasbach, Kaiserstuhl, Baden-Wurttemberg, Germany. Scale: See Image.
© Rruff Database

Fergusonite-beta-(Ce): (Ce,La,Nd)NbO4

Comments: Dark brown vitreous amorphous (metamict) fragments of fergusonite-beta-(Ce).
Location: Amherst County, Virginia, USA. Scale: See Image.
© Rruff Database

Fergusonite-beta-(Ce): (Ce,La,Nd)NbO4

Comments: Dark brown vitreous amorphous (metamict) fragments of fergusonite-beta-(Ce).
Location: Amherst County, Virginia, USA. Scale: See Image.
© Rruff Database

Ferripedrizite: NaLi2(Fe+++2Mg2Li)Si8O22(OH)2

Comments: Black, bladed ferripedrizite crystals.
Location: East Pedriza Massif, Sierra de Guadarrama, Spain. Scale: See Image.
© Rruff Database

Ferripedrizite: NaLi2(Fe+++2Mg2Li)Si8O22(OH)2

Comments: Black, bladed ferripedrizite crystals.
Location: East Pedriza Massif, Sierra de Guadarrama, Spain. Scale: See Image.
© Rruff Database

Ferriwinchite: ([ ],Na)(Na,Ca)2(Mg, Fe++)4Fe+++[Si8O22](OH)2

Comments: Deep black-blue bladed single ferriwinchite crystals embedded in white dolomite.
Location: Imerina, Madagascar. Scale: See Image.
© Rruff Database

Ferriwinchite: ([ ],Na)(Na,Ca)2(Mg, Fe++)4Fe+++[Si8O22](OH)2

Comments: Deep black-blue bladed single ferriwinchite crystals embedded in white dolomite.
Location: Imerina, Madagascar. Scale: See Image.
© Rruff Database

Ferroselite: FeSe2

Comments: Yellowish silver metallic prismatic ferroselite crystals on matrix.
Location: Virgin No. 3 mine, Paradox Valley, Uravan District, Montrose County, Colorado, USA. Scale: See Image.
© Rruff Database

Ferroselite: FeSe2

Comments: Yellowish silver metallic prismatic ferroselite crystals on matrix.
Location: Virgin No. 3 mine, Paradox Valley, Uravan District, Montrose County, Colorado, USA. Scale: See Image.
© Rruff Database