's Image Gallery

Jagueite: Cu2Pd3Se4

Comments: Polished section (oil-immersion, plain polarized on left, cross-polarized on right) showing lobate grains of chrisstanleyite (Chr), replaced by jaguéite (Jag), with tiemannite (Tie). The jaguéite twinning is evident by banding in both images.
Location: El Chire prospect, Los Llantenes District of La Rioja Province, Argentina.. Scale: Picture size 150 µm.
© Canadian Mineralogist

Jahnsite-(CaMnFe): CaMn++Fe++2Fe+++2(PO4)4(OH)2·8(H2O)

Comments: Orange-brown microcrystalline jahnsite-(CaMnFe) associated with quartz.
Location: Voron'i Tundry, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: See Image.
© Rruff Database

Jahnsite-(CaMnMg): CaMnMg2Fe+++2(PO4)4(OH)2·8(H2O)

Comments: Brown, striated, transparent crystals of jahnsite-(CaMnMg) on matrix.
Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Jahnsite-(CaMnMn): CaMn++Mn++2Fe+++2(PO4)4(OH)2·8(H2O)

Comments: Brown grains of jahnsite-(CaMnMn) in matrix.
Location: Bendada Quarry, Belmonte, Beira Alta, Portugal. Scale: Picture size 1 cm.
© Tom Loomis / Dakota Matrix

Jahnsite-(MnMnMn): MnMnMn2Fe+++2(PO4)4(OH)2·8(H2O)

Comments: Brownish red aggregate of jahnsite-(MnMnMn).
Location: Stewart Mine, Near Pala, San Diego Co., California, USA. Scale: Specimen Size 8x5x4 mm.
© Sergey Vasiliev / Systematic Mineralogy

Jalpaite: Ag3CuS2

Comments: Tarnished black lustrous masses of jalpaite in rock with blue chrysocolla.
Location: La Mesa, Chihuahua, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jamborite: (Ni++,Ni+++,Fe)(OH)2(OH,S,(H2O))

Comments: Green coatings of jamborite on millerite filaments, in vug.
Location: Halls Gap, Lincoln County, Kentucky, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jamesite: Pb2Zn2Fe+++5(AsO4)5O4  
Duftite-beta: PbCu(AsO4)(OH)

Comments: Reddish-brown bladed jamesite crystals overgrown with white dolomite and associated with dark green duftite.
Location: Tsumeb mine, Tsumeb, Otavi District, Oshikoto, Namibia. Scale: See Image.
© Rruff Database

Jamesonite: Pb4FeSb6S14

Comments: Metallic, hair-like, crystals of jamesonite on matrix.
Location: Baie Sprie (Felsobanya), Maraures, Romania. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Janhaugite: (Na,Ca)3(Mn++,Fe++)3(Ti++++,Zr,Nb)2Si4O15(OH,F,O)3  
Dalyite: K2ZrSi6O15

Comments: Tan crystalline dalyite (arrow) with reddish brown janhaugite.
Location: Gjerdingen, Nordmark, north of Oslo, Oslo, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Janhaugite: (Na,Ca)3(Mn++,Fe++)3(Ti++++,Zr,Nb)2Si4O15(OH,F,O)3

Comments: Reddish-brown columnar crystalline janhaugite in white matrix.
Location: Gjerdingen, Nordmark, north of Oslo, Oslo, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jarlite: Na(Sr,Na,[ ])7(Mg,[ ])Al6F32(OH,H2O)2

Comments: Tan radial botryoidal waxy masses of jarlite in matrix.
Location: Ivigtut, Greenland. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jarosewichite: Mn++3Mn+++(AsO4)(OH)6  
Flinkite:

Comments: Radial divergent spray of thick prismatic jarosewichite crystals with bladed flinkite crystals. (AmMin, v67:1043).
Location: Franklin mine, Franklin, SussexC ounty, New Jersey, USA. Scale: Scale Bar 100 µm.
© American Mineralogist

Jarosite: KFe+++3(SO4)2(OH)6  
Alunogen: Al2(SO4)3·17(H2O)

Comments: Colorless to white, tabular crystals alunogen on reddish jarosite.
Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Jarosite: KFe+++3(SO4)2(OH)6  
Fairbankite: PbTe++++O3

Comments: Colorless to white crystals of fairbankite with orangish brown jarosite.
Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 1.5 mm.
© Thomas Witzke / Abraxas-Verlag

Jarosite: KFe+++3(SO4)2(OH)6

Comments: Deep brown lustrous crystals of Jarosite to 2 mm.
Location: Soureza, Attika, Greece. Scale: 2.8 x 1.6 cm.
© John Veevaert

Jarosite: KFe+++3(SO4)2(OH)6  
Winstanleyite: TiTe++++3O8

Comments: Small, yellow octahedral crystal of winstanleyite on brownish red jarosite.
Location: Tombstone, Tombstone District, Cochise Co., Arizona, USA. Scale: Picture size 0.9 mm.
© Thomas Witzke / Abraxas-Verlag

Jaskolskiite: Pb2+xCux(Sb,Bi)2-xS5, x=0.2

Comments: Silvery gray metallic granular jaskolskiite (mounted on paper).
Location: Vena, Bergslagen, Orebro, Sweden. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Jasmundite: Ca11(SiO4)4O2S  
Cuspidine: Ca4Si2O7(F,OH)2

Comments: Tan-brownish crystals of jasmundite and dark green cuspidine with gehlenite and spinel in matrix.
Location: Bellerberg, Eifel, Germany. Scale: Not Given.
© Diederik Visser

Jeanbandyite: (Fe+++,Mn++)Sn++++(OH)6

Comments: Yellowish brown translucent microcrystal of jeanbandyite on mineral encrusted fluorite.
Location: Mount Pleasant Tin Mine, New Brunswick, Canada. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species