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Humboldtine: Fe++(C2O4)·2(H2O)
Comments: Yellow crystals of humboldtine. Location: Lomnice, Sokolov, Západoceský Kraj, Bohemia, Czech Republic. Scale: Picture size 1.5 mm. © Thomas Witzke / Abraxas-Verlag
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
Hummerite: KMgV+++++5O14·8(H2O)
Comments: Orange-yellow hummerite on fossil wood. Location: Ronneburg U deposit, Gera district, Thuringia, Germany. Scale: Specimen size 65 mm. © Thomas Witzke / Abraxas-Verlag
Hunchunite: (Au,Ag)2Pb
Comments: Bluish-gray hunchunite in a polished section in reflected light. Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm. © Thomas Witzke / Abraxas-Verlag
Huntite: CaMg3(CO3)4
Comments: pure white chalky massive huntite. Location: Near Austin, Lander County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hureaulite: Mn5(PO3OH)2(PO4)2·4(H2O) Tavorite: LiFe+++(PO4)(OH)
Comments: Lime green tavorite micro crystals with pink, gemmy hureaulite. Location: Tip Top mine, Custer Co., South Dakota, United States. Scale: Picture size 1.0 cm. © Tom Loomis / Dakota Matrix
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: Transparent, striated, cherry-red crystal of hutchinsonite on white dolomite. Location: Lengenbach quarry, Binntal, Valais, Switzerland. Scale: Crystal size 1 mm. © Walter Gabriel
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: Dark, striated, prismatic crystal of hutchinsonite on matrix. Location: Quiruvica, La Libertad Dept., Peru. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals