Click on thumbnails for a larger image. Please be patient since some of these pages of thumbnail images take some time to load. These mineral photos are copyrighted by their owners and may not be used without permission.
Humite: (Mg,Fe++)7(SiO4)3(F,OH)2
Comments: Striated, brown, tabular crystals of humite. Location: Monte Somma (Vesuvius), Campania, Italy. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hureaulite: Mn5(PO3OH)2(PO4)2·4(H2O)
Comments: Pink crystals of hureaulite on matrix. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hurlbutite: CaBe2(PO4)2 Roscherite: Ca(Mn++,Fe++)5Be4(PO4)6(OH)4·6(H2O)
Comments: White, round crystal clusters of hurlbutite on reddish brown roscherite. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hutchinsonite: (Pb,Tl)2As5S9
Comments: Dark, striated, prismatic crystal of hutchinsonite on matrix. Location: Quiruvica, La Libertad Dept., Peru. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hydroboracite: CaMgB6O8(OH)6·3(H2O)
Comments: White, acicular crystal clusters of hydroboracite. Location: U. S. Borax Open Pit, Boron, Kern County, California, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hydroxylherderite: CaBe(PO4)(OH)
Comments: Transparent crystals of hydroxylherderite. Location: Lord Hill quarry, Stonehame, Oxford County, Maine, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Ilmenite: Fe++TiO3
Comments: Sharp, opaque crystal of Ilmenite. Location: Mont St. Hilaire, Quebec, Canada. Scale: Not Given. © Lou Perloff / Photo Atlas of 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
Jadeite: Na(Al,Fe+++)Si2O6
Comments: Fibrous crystals of Jadeite. Location: Russian River, near Cloverdale, Mendocino County, California, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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