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Hephaistosite: TlPb2Cl5
Comments: BSE image of hephaistosite crystals (CanMin, v43:701). Location: Rim of La Fossa crater, Vulcano Island, Aeolian archipelago, Sicily, Italy. Scale: Crystal length 0.5 mm. © Canadian Mineralogist
Herbertsmithite: Cu3Zn(OH)6Cl2
Comments: Black and white image of dark green herbertsmithite crystals on pale buff matrix. (Mineralogical Magazine, 68:5310. Location: Mina Los Tres Presidentes, Sierra Gorda, Chile.. Scale: See Image. © Mineralogical Magazine
Hercynite: Fe++Al2O4
Comments: Brownish black granular hercynite. Location: Nacetin, Severocesky, Czech Republic. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Herderite: CaBe(PO4)F
Comments: Partially transparent herderite crystal with minor white albite. Location: Alto do Corrego Frio, Linopolis, Minas Gerais, Brazil. Scale: 3.1x2.7x2.9 cm. © Fabre 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
Herzenbergite: SnS
Comments: B&W polished section images. (C) Herzenbergite (h) and columbite (cb), with remnants of primary cassiterite (c), replaced(?) by varlamoffite (v). (D) Replacement of cassiterite by herzenbergite with euhedral herzenbergite crystals and gangue (g). Location: Dykes in three granite pegmatite fields in north-central Sweden. (MinMag, v57:388). Scale: Picture Width 0.4 mm. © Mineralogical Magazine
Hessite: Ag2Te Choloalite: CuPb(Te++++O3)2
Comments: Sparse green crusts of choloalite with metallic hessite. Location: McAlpine Mine, Tuolumne County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hessite: Ag2Te
Comments: Complex latticework of hessite with minor white quartz. Location: Botés Mountains, Botés, Transilvania Rumania. Scale: Crystal size: 1 x 0.2 cm. © Fabre 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