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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
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) 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
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
Idaite: Cu5FeS6
Comments: Deep blue metallic idaite in milky quartz. Location: Winston, Sierra County, New Mexico, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Idrialite: C22H14
Comments: Yellow platy crystalline idrialite on matrix. Location: Skaggs Springs, Sonoma County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ilmajokite: (Na,Ce,La,Ba)2TiSi3O5(OH)10·n(H2O) (?)
Comments: Opaque dull yellow ilmajokite in syenite matrix. Location: valley of Ilmajok River, Lovozero Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Ilmenorutile: (Ti,Nb,Fe+++)O2
Comments: Dark brown ilmenorutile crystal in matrix. Location: Iveland, Aust-Agder, Norway. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Imandrite: Na12Ca3Fe+++2Si12O36
Comments: Honey-yellow colored rims of imandrite surrounding grains of pink eudialyte. Location: Vuonnemiok River Valley, Khibiny Massif, Kola Peninsula, Russia. Scale: Picture Size 5 mm. © Jeff Weissman / Photographic Guide to Mineral Species
Imiterite: Ag2HgS2
Comments: Back metallic prismatic microcrystals of imiterite in white calcite. Location: Imiter Mine, Jbel Sarho, Anti-Atlas Region, Morocco. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Imogolite: Al2SiO3(OH)4
Comments: Tan powdery massive imogolite. Location: Fukaiwa, Nanuma-shi, Tochigi, Japan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Inderborite: CaMg[B3O3(OH)5]2·6(H2O)
Comments: Translucent glassy crystalline inderborite. Location: Lake Inder, Atyrau, Kazakhstan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species