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Hedyphane: Ca2Pb3(AsO4)3Cl
Comments: Phlogopite with yellowish orange hedyphane. Location: Langban, Varmland, Sweden. Scale: 4.4 x 2.2 cm. © John Veevaert
Heidornite: Na2Ca3B5O8(SO4)2Cl(OH)2
Comments: Colorless crystals of heidornite. Location: Niedersachswerfen, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Heinrichite: Ba(UO2)2(AsO4)2·10-12(H2O)
Comments: Pale greenish-yellow crystalline heinrichite crusts on clay. Location: Lakeview, Lake County, Oregon, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hejtmanite: Ba(Mn,Fe++)2TiO(Si2O7)(OH,F)2
Comments: Bronze sub-metallic micaceous crystalline hejtmanite with dark green aegirine on white feldspar. Location: Dara-Pioz, Tien-Shan, Tadzhikistan. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Heklaite: KNaSiF6
Comments: Post mining sample of heklaite.. Location: Bone Valley Phosphate Mining District, near Bartow, Polk County, Florida. Scale: Specimen size 8.6 x 5.5 x 4.2 cm. © Isaias Casanova / IC Minerals
Hellandite-(Ce): (Ca3REE)4Ce2Al[ ]2[Si4 B4O22](OH)2
Comments: Pale yellow platy hellandite-(Ce) crystals in a vug. Location: Campo Pefella, near Capranica, Viterbo, Latium, Italy. Scale: See Image. © Rruff Database
Hellandite-(Y): (Ca,REE)4(Y,Ce)2(Al,[ ])2[Si4B4O22](OH)2
Comments: Short-prismatic crystal of dark-brown hellandite-(Y) in granitic pegmatite. Location: Tusion River Valley, Pamir Mts, Viloyati Mukhtori Gorno-Badakhshan (Viloyati Badakhshoni Kuni), Tajikistan. Scale: FOV is 2x1.7 cm. © Pavel M. Kartashov
Hellyerite: NiCO3·6(H2O)
Comments: Green botryoidal hellyerite on matrix. Location: Lord Brassey Mine, Heazlewood, Tasmania, Australia. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
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
Helvite: Mn4Be3(SiO4)3S
Comments: Large (for the species), triangular yellowish creamy colored crystals of helvite on white, albite matrix. Location: Navegador mine, Conselheiro Pena, Minas Gerais, Brazil. Scale: Crystal size 0.7 x 0.7 cm. © Fabre Minerals