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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
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
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
Hydrotungstite: H2WO4·(H2O)
Comments: Bright yellow crystalline crusts of hydrotungstite on matrix. Location: Colquiri Mine, Colquiri, La Paz, Bolivia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hydroxylpyromorphite: Pb5(PO4)3OH
Comments: Small crudely formed crystals of hydroxylpyromorphite on quartzite matrix, formed from alteration of galena. Location: Mapleton, Brady Township, Hares Valley Area, Huntingdon Co., Pennsylvania, USA. Scale: Crystallite Size 0.15 cm. © Jeff Weissman / Photographic Guide to Mineral Species
Hypercinnabar: HgS
Comments: Black hypercinnaber, with dark red cinnabar, in calcite matrix. Location: Manhattan District, Nye Co., Nevada, USA. Scale: Field of view 1 cm. © Jeff Weissman / Photographic Guide to Mineral Species
Hypersthene: (Mg,Fe++)2Si2O6 Almandine: Fe++3Al2(SiO4)3
Comments: Dark green blocky crystals hypersthene with reddish almandine. Location: Barton Garnet Mine, North Creek, Warren County, Adirondacks, New York, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ianthinite: (UO2)·5(UO3)·10(H2O) Schoepite: (UO2)8O2(OH)12·12(H2O)
Comments: Purple to brown resinous ianthinite with yellow schoepite and orange becquerelite. Location: Colorado Plateau area, Saguache County, Colorado, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species