's Image Gallery

Innelite: (Na,Mg,Ca)2(Ba,K)4Ti3(Si2O7)2(SO4)2(OH,F)

Comments: Yellow crystalline granular innelite.
Location: Inagli, Aldan, Republic of Sakha, Siberia, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Insizwaite: Pt(Bi,Sb)2  
Moncheite: (Pt,Pd)(Te,Bi)2

Comments: Back-scattered electron image showing b) intergrowth of taimyrite-tatyanaite with moncheitei-insizwaite (CanMin, v 42, p 611).
Location: Kondyor PGE placer, Khabarovskiy Kray, eastern Siberia, Russia. Scale: See Image.
© Canadian Mineralogist

Insizwaite: Pt(Bi,Sb)2  
Niggliite: PtSn

Comments: B&W image of a polished section showing insizwaite grain (I) showing details of niggliite (N) inclusions and exsolved chalcopyrite (C) lamellae in the pentlandite (P). (MinMag, v38:299).
Location: Insizwa deposit, Waterfall Gorge, Pondoland and East Griqualand areas (Transkei), South Africa. Scale: See Image.
© Mineralogical Magazine

Inyoite: Ca2B6O6(OH)10·8(H2O)

Comments: Glassy gray translucent crystals of inyoite 1.5 cm.+, with minor alteration to white meyerhofferite.
Location: Loma Blanca Mine, Jujuy Province, Argentina. Scale: 5.2x4.1x3.1 cm.
© Richard Dale / Dale Minerals

Iodargyrite: AgI

Comments: Aggregate crystal of Iodargyrite on matrix.
Location: Broken Hill, New South Wales, Australia. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Iodargyrite: AgI  
Embolite: Ag(Br,Cl)

Comments: Cubo-octahedral crystals of iodaryrite (I) with smaller and darker octahedral crystals of embolite (E).
Location: Broken Hill, New South Wales, Australia. Scale: Specimen size 2x1 cm.
© Dave Barthelmy

Iodargyrite: AgI  
Coronadite: Pb(Mn++++,Mn++)8O16

Comments: Dark, fine-grained massive coronadite with yellowish octahedral iodargyrite crystals.
Location: Broken Hill, New South Wales, Australia. Scale: Picture size 3x2 cm.
© Dave Barthelmy

Iowaite: Mg4Fe+++(OH)8OCl·2-4(H2O)

Comments: Floater crystal of iowaite.
Location: Palabora Mine, Transvaal, South Africa. Scale: Crystal size 1.2 cm.
© John Veevaert

Iquiqueite: K3Na4Mg(Cr++++++O4)B24O39(OH)·12(H2O)  
Nitratine: NaNO3

Comments: Yellow iquiqueiite in clear, massive nitration.
Location: Salar de Miraje, Antofagasta, Chile. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Iranite: Pb10Cu(CrO4)6(SiO4)2(F,OH)2

Comments: Crystals of iranite to 3mm on brecciated, siliceous matrix.
Location: Sebarz mine, Anarak, Iran. Scale: 3.7 x 2.5 cm.
© John Veevaert

Irarsite: (Ir,Ru,Rh,Pt)AsS  
Ruthenarsenite: (Ru,Ni)As

Comments: Photomicrograph of the largest inclusion of ruthenarsenite (Ru) associated with irarsite inclusions (Ir) in a rutheniridosmine matrix. (CanMin, v12:280).
Location: Papua New Guinea. Scale: See Image.
© Canadian Mineralogist

Irhtemite: Ca4Mg(AsO3OH)2(AsO4)2·4(H2O)

Comments: Pink acicular divergent microcrystals of irhtemite on matrix.
Location: Irhtem Mine, near Bou-Azzer, Ouarzazate, Morocco. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Iridium: (Ir,Os,Ru,Pt)

Comments: Silvery metallic crystalline iridium micrograin and irregular nuggets.
Location: Fox Gulch, Goodnews Bay, Alaska, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Iriginite: (UO2)(Mo++++++2O7)·3(H2O)

Comments: Yellow aggregates of iriginite on matrix.
Location: Cameron area, Coconino County, Arizona, USA. Scale: Picture size 2.5 mm.
© Thomas Witzke / Abraxas-Verlag

Iriginite: (UO2)(Mo++++++2O7)·3(H2O)  
Mourite: U++++Mo++++++5O12(OH)10

Comments: Purple to violet sub-metallic mourite coatings with yellow iriginite.
Location: 'North Caucasus', probably Kyzylsai Deposit, Chu-Ili Mountains, Balkhash, Zezkazgan, Kazakhstan. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Iron: Fe

Comments: Specimen of volcanic rock containing dark gray grains of native Iron. This locality is one of the very few known localities for terrestrial native iron.
Location: Disko Island, Greenland. Scale: Picture size 1 cm.
© John Veevaert

Ishikawaite: (U,Fe,Y,Ca)(Nb,Ta)O4 (?)

Comments: Blocky, metamict crystals of ishikawaite.
Location: Spinelli Quarry (Spinelli prospect), South Glastonbury, Hartford Co., Connecticut, USA. Scale: 15x15x10 mm.
© John Betts - Fine Minerals

Isochalcopyrite: Cu8Fe9S16  
Isocubanite: CuFe2S3

Comments: SEM image of an aggregate of idiomorphic grains of isocubanite (formerly known as isochalcopyrite) associated with minor pyrite.
Location: Submarine sulphide deposits of the East Pacific Rise (EPR) and the Red Sea. Scale: See Image.
© Mineralogical Magazine

Isochalcopyrite: Cu8Fe9S16  
Isocubanite: CuFe2S3

Comments: Polished section showing isocubanite (formerly isochalcopyrite) with exsolved chalcopyrite infilling and replacing cross-bedded turbiditic hydrothermally altered sandstone.
Location: Unit VI, Deep Copper Zone, Bent Hill Massive Sulfide Deposit, Middle Valley, Northern Juan de Fuca Ridge. Scale: See Image.
© National Resouces of Canada

Isocubanite: CuFe2S3  
Isochalcopyrite: Cu8Fe9S16

Comments: SEM image of an aggregate of idiomorphic grains of isocubanite (formerly known as isochalcopyrite) associated with minor pyrite.
Location: Submarine sulphide deposits of the East Pacific Rise (EPR) and the Red Sea. Scale: See Image.
© Mineralogical Magazine