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Hedenbergite: CaFe++Si2O6
Comments: Thick, bluish gray blocky prisms of hedenbergite on matrix. Location: Harstig mine, Pajsberg, Varmland, Sweden. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Helvite: Mn4Be3(SiO4)3S Rhodochrosite: MnCO3
Comments: Yellow crystals of helvite on quartz and pink rhodochrosite. Location: Galerie Elisabeth, Cavnic, Maramures, Romaina. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hemihedrite: Pb10Zn(CrO4)6(SiO4)2F2
Comments: Reddish brown crystals of hemihedrite on matrix. Location: Florence Pb-Ag mine, Whckenburg, Maricopa County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Herschelite: (Na,Ca,K)AlSi2O6·3(H2O) Chabazite-Na: (Na2,K2,Ca,Mg)[Al2Si4O12]·6(H2O)
Comments: Rounded transparent crystals of chabazite-Na (herschelite). Location: Horseshoe Dam, Maricopa County, Arizona, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hessite: Ag2Te Kurilite: (Ag,Au)2(Te,Se,S)
Comments: Metallic crystal of hessite on matrix. Hessite is also known as kurilite. Location: Botes, Zlatna, Transylvania, Romania. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hetaerolite: ZnMn+++2O4 Hodgkinsonite: MnZn2SiO4(OH)2
Comments: Dark crystal of hetaerolite on hodgkinsonite. Location: Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Heulandite-Ca: (Ca,Na)2-3Al3(Al,Si)2Si13O36·12(H2O) Mordenite: (Ca,Na2,K2)Al2Si10O24·7(H2O)
Comments: White, acicular crystals of mordenite in heulandite geode. Location: Rock Creek, Stevenson, Skamania County, Washington, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hinsdalite: (Pb,Sr)Al3(PO4)(SO4)(OH)6
Comments: Transparent crystal of hinsdalite on quartz. Location: Butte, Silver Bow County, Montana, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hodgkinsonite: MnZn2SiO4(OH)2 Hetaerolite: ZnMn+++2O4
Hodgkinsonite: MnZn2SiO4(OH)2
Comments: Pink, transparent crystal of hodgkinsonite with franklinite. Location: Franklin, Sussex County, New Jersey, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Hopeite: Zn3(PO4)2·4(H2O)
Comments: Brownish pink, transparent crystalline aggregate of hopeite crystals. Location: Broken Hill mine, Kabwe, Central, Zambia. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Huemulite: Na4Mg(V10O28)·24(H2O)
Comments: Brownish orange aggregate of huemulite crystals. Location: Walker mine, Thompson, Grand County, USA. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
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