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Hutchinsonite: (Pb,Tl)2As5S9
Comments: Aggregate of red colored needles of hutchinsonite on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Picture width 6 mm. © Walter Gabriel
Comments: Transparent, striated, cherry-red crystal of hutchinsonite on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 1 mm. © Walter Gabriel
Hyalophane: (K,Ba)Al(Si,Al)3O8
Comments: Twinned crystal of hyalophane slightly yellow from iron stains. Location: Sarajevo, Bosnia, Yugoslavia. Scale: 4 x 3 cm. © Isaias Casanova / IC Minerals
Hydroastrophyllite: (H3O,K)2Ca(Fe+++,Mn)5-6Ti2Si8O26(OH)4F
Comments: Spray of brown hydroastrophyllite in alkaline granite pegmatite matrix. Location: Western Keivy Massif, Kola Peninsula, Murmanskaja Oblast', Northern Region, Russia. Scale: Picture Size 12x9 mm. © Pavel M. Kartashov
Hydrobiotite: [K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2]·[(Mg,Fe++,Al)3(Si,Al)4O10(OH)2·4(H2O)]
Comments: Silvery brown micaceous hydrobiotite. Location: Oaxaca, Mexico. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
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
Hydrocalumite: Ca2Al(OH)6[Cl1-x(OH)x]·3(H2O)
Comments: Bright white platy crystal aggregate of hydrocalumite. Location: Boissejour, Puy-de-Dome, France. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrocerussite: Pb3(CO3)2(OH)2 Cerussite: PbCO3
Comments: Platy crystals of milky white hydrocerussite covering cerussite. Location: Tsumeb mine, Tsumeb, Namibia. Scale: 6 x 5 cm. © Fabre Minerals
Hydrochlorborite: Ca2B4O4(OH)7Cl·7(H2O)
Comments: White botryoidal crust of hydrochlorborite on massive white anhydrite. Location: Takuko, Tibet. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrodelhayelite: KCa2AlSi7O17(OH)2·6(H2O)
Comments: Tan platy crystalline hydrodelhayelite in white syenite matrix. Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrodresserite: BaAl2(CO3)2(OH)4·3(H2O) Weloganite: Sr3Na2Zr(CO3)6·3(H2O)
Comments: White spherical aggregates of hydrodresserite with radiating structure with columnar weloganite. Location: Francon Quarry, Montreal, Quebec, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydroglauberite: Na4Ca(SO4)3·2(H2O) Glauberite: Na2Ca(SO4)2
Comments: Putty-colored chalky hydroglauberite on glauberite crystals. Location: Camp Verde, Yavapai County, Arizona, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrohalite: NaCl·2(H2O)
Comments: Synthetic crystals of hydrohalite in brine at -15 deg C. Location: Laboratory-grown sea ice used to investigate the optical properties of cold sea ice. Scale: See Image. © Bonnie Light / Applied Physics Laboratory U of Washington
Hydrohetaerolite: Zn2Mn+++4O8·(H2O)
Comments: Dull brown patches of hydrohetaerolite in franklinite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrohonessite: Ni6Fe+++2(SO4)(OH)16·7(H2O)
Comments: Yellow to brown crusts of hydrohonessite on matrix. Location: Otter Shoot, Kambalda, Western Australia, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydromagnesite: Mg5(CO3)4(OH)2·4(H2O)
Comments: White, blocky crystals of hydromagnesite. Location: Lobming, Styria, Austria. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Hydromagnesite: Mg5(CO3)4(OH)2·4(H2O) Pokrovskite: Mg2(CO3)(OH)2·0.5(H2O)
Comments: Tan spherical pokrovskite on serpentinite rock with white hydromagnesite sprays. Location: KCA Quarry, San Benito County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydroniumjarosite: (H3O)Fe+++3(SO4)2(OH)6
Comments: Yellow, earthy hydronium-jarosite. Location: Reiche Zeche Mine, Himmelfahrt Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Specimen size 3.3 cm. © Thomas Witzke / Abraxas-Verlag
Hydroscarbroite: Al14(CO3)3(OH)36·n(H2O) Scarbroite: Al5(CO3)(OH)13·5(H2O)
Comments: White to tan nodular hydroscarbroite intermixed with scarbroite in sandstone. Location: Weston Favell, Northamptonshire, England. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydrotalcite: Mg6Al2(CO3)(OH)16·4(H2O)
Comments: Pearly white foliated masses of hydrotalcite on serpentinite rock. Location: Snarum, Vikersund, Buskerud, Norway. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species