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Heteromorphite: Pb7Sb8S19
Comments: Steel gray metallic acicular crystal mat of heteromorphite on clear calcite crystals. Location: Wolfsberg, Harz Mountains, Niedersachsen, Germany. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Heterosite: Fe+++PO4 Alluaudite: NaCaFe++(Mn,Fe++,Fe+++,Mg)2(PO4)3
Comments: Purple crystalline heterosite with yellow coatings of alluaudite. Location: Palermo Mine, North Groton, Grafton County, New Hampshire, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hewettite: CaV6O16·9(H2O)
Comments: Red sub-metallic fibrous mats of hewettite on matrix. Location: Cactus Rat Mine, Thompson's District, Grand Count, Utah, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hexahydrite: MgSO4·6(H2O)
Comments: White fibrous mats and powdery encrustation of hexahydrite on matrix. Location: near Basque, Bonaparte River, British Columbia, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Heyite: Pb5Fe++2(VO4)2O4
Comments: Mustard yellow colored microcrystalline aggregates of heyite on quartz. Location: Betty Joe Claim, near Ely, White Pine County, Nevada, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hibbingite: (Fe,Mg)2(OH)3Cl
Comments: Orange crystalline hibbingite grains in rock matrix. Location: 900' level drill core, Duluth Complex, near Hibbing, Saint Louis County, Minnesota, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hibschite: Ca3Al2(SiO4)3-x(OH)4x(x=0.2-1.5)
Comments: Deep red translucent dodecahedral crystals of hibschite. Location: Monte Faiello, Liguria, Italy. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hieratite: K2SiF6
Comments: Opaque white crystalline stalactic aggregate of hieratite. Location: Shamokin, Northumberland County, Pennsylvania, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hillebrandite: Ca6Si3O9(OH)6
Comments: Opaque white fibrous hillebrandite on marble. Location: Crestmore Quarry, Riverside County, California, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hiortdahlite: (Ca,Na,Y)3(Zr,Ti)Si2O7(F,O,OH)2
Comments: Yellow translucent crystals of hiortdahlite in syenite matrix. Location: Norra Karr, Granna, Jonkoping, Sweden. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species