Rruff Database's Image Gallery

Abelsonite: Ni++C31H32N4

Comments: Purple platy abelsonite crystals embedded in drill core of the Green River Formation (Type Specimen ?).
Location: Green River Formation, Utah, USA. Scale: See Image.
© Rruff Database

Abramovite: Pb2SnInBiS7

Comments: Fragments of feathery abramovite crystals (RRUFF ID R070037), co-type sample..
Location: Kudriavy, Iturup Island, Russia. Scale: See Image.
© Rruff Database

Agardite-(Ce): (Ce,Ca)Cu6(AsO4)3(OH)6·3(H2O)

Comments: Green acicular to fibrous in spherical aggregates of agardite-(Ce) in a vug.
Location: Hayashi, Setoda, Ikuchi Island, Hiroshima Prefecture, Chugoku Region, Honshu Island, Japan. Scale: See Image.
© Rruff Database

Alloriite: Na5K1.5Ca(Si6Al6O24)(SO4)(OH)0.5·H2O

Comments: Colorless alloriite prisms in vug.
Location: Monte Cavalluccio, near Campagnano di Roma, Rome, Latium, Italy. Scale: See Image.
© Rruff Database

Alumoklyuchevskite: K3Cu3AlO2(SO4)4

Comments: Green blebs to prismatic or needle-like crystals of alumoklyuchevskite associated with vergasovaite, co-type material.
Location: Main fracture, N breakthrough, Tolbachik Volcano, Kamchatka Peninsula, Russia. Scale: See Image.
© Rruff Database

Alumotungstite: (W,Al)(O,OH)3 (?)

Comments: Pale orange, chalky crust of alumotungstite on ferberite with quartz.
Location: Hemerdon mine, Sparkwell, Plympton, Devon, England. Scale: See Image.
© Rruff Database

Ammoniojarosite: (NH4)Fe+++3(SO4)2(OH)6

Comments: Tan colored fine-grained massive ammoniojarosite, intimately associated with quartz.
Location: Wamsutter, Sweetwater County, Wyoming, USA. Scale: See Image.
© Rruff Database

Ammonioleucite: (NH4,K)AlSi2O6

Comments: White powdery ammonioleucite associated with colorless analcime.
Location: Tatarazawa Quarry, Fujioka Gunma Prefecture, Hunho Island, Japan. Scale: See Image.
© Rruff Database

Ankangite: Ba(Ti,V+++,Cr+++)8O16

Comments: Black prismatic ankangite inclusions in quartz.
Location: Curvelo region, Minas Gerais, Brazil. Scale: See Image.
© Rruff Database

Ankinovichite: (Ni,Zn)Al4(VO3)2(OH)12(H2O)2.5

Comments: Aggregates of pale green thin pseudohexagonal plates of ankinovichite on matrix.
Location: Kara-Chagyr Mountain, Fergana, Fergana Valley, Osh Oblast, Kyrgyzstan. Scale: See Image.
© Rruff Database

Anthophyllite: [ ]Mg7Si8O22(OH)2  
Magnesioanthophyllite: (Mg,Fe++)7Si8O22(OH)2

Comments: Schistose amphibolite rock composed primarily of anthophyllite (magnesioanthophyllite is now considered to be anthophyllite).
Location: Winchester, Riverside County, California, USA. Scale: See Image.
© Rruff Database

Arakiite: (Zn,Mn++)(Mn++,Mg)12(Fe+++,Al)2(AsO3)(AsO4)2(OH)23

Comments: Deep red massive arakiite between grains.
Location: Nordmark, Sweden. Scale: See Image.
© Rruff Database

Arapovite: (U,Th)(Ca,Na)2(K1-x[ ]x)Si8O20·H2O, x=0.5

Comments: Dark green prismatic arapovite crystals with rectangular shapes.
Location: Dara-i-Pioz Glacier, Hait, Alayskiy (Alai) Range, Tien Shan Mountains, Tajikistan. Scale: See Image.
© Rruff Database

Armalcolite: (Mg,Fe++)Ti2O5

Comments: Gray semi-metallic armalcolite micro crystals on coal.
Location: Chelyabinsk Oblast', Urals Region, Russia. Scale: See Image.
© Rruff Database

Arrojadite-(KFe): KNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2

Comments: Greenish Gray, massive arrojadite-(KFe).
Location: Nickel Plate mine, Keystone District, Pennington County, South Dakota, USA. Scale: See Image.
© Rruff Database

Arrojadite-(NaFe): NaNa2CaNa2(Fe++,Mn,Mg)13Al(PO4)11(PO3OH)(OH,F)2

Comments: Dark bluish gray radial crystals of arrojadite-(NaFe).
Location: Boundary Creek, Richardson Mountains, Dawson mining district, Yukon Territory, Canada. Scale: See Image.
© Rruff Database

Arsenohauchecornite: Ni18Bi3AsS16

Comments: Bright bronze, massive arsenohauchecornite with chonchoidal fracture.
Location: Vermilion Mine, Denison Township, Sudbury District, Ontario, Canada. Scale: See Image.
© Rruff Database

Arzakite: Hg3S2(Br,Cl)2

Comments: Orange brown arzakite crystals lining vug, co-type material; associated with jarosite (sharp crystals), montroydite (dark red - blackish).
Location: Arzak deposit, Tuva, Siberia, Russia. Scale: See Image.
© Rruff Database

Aschamalmite: Pb6Bi2S9

Comments: Lead gray metallic prismatic aschamalmite crystals in veins in quartz.
Location: Ascham Alp, Untersulzbach Valley, Salzburg, Austria. Scale: See Image.
© Rruff Database

Avicennite: Tl2O3

Comments: Grayish black polished crystals on microprobe sample mount.
Location: Thallium Prospect, Little Valley, Tooele County, Utah, USA. Scale: See Image.
© Rruff Database