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Hiarneite: (Ca,Mn,Na)2(Zr,Mn+++)5(Sb,Ti,Fe)2O16
Comments: A bright red single grain of hiarneite about 0.25mm in matrix with magnetoplumbite. Location: Langban, Varmland, Sweden. Scale: Picture size 2 mm. © Tom Loomis / Dakota Matrix
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
Hibonite: (Ca,Ce)(Al,Ti,Mg)12O19
Comments: Crystalline spire-like specimen of hibonite. Location: Ambindandrakemba, Madagascar. Scale: 2.1 x 1.5 cm. © John Veevaert
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
Hidalgoite: PbAl3(AsO4)(SO4)(OH)6
Comments: White to light gray crystalline druze of hidalgoite. Location: Sauberg Mine, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany. Scale: Picture size 3 mm. © Thomas Witzke / Abraxas-Verlag
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
Hilairite: Na2ZrSi3O9·3(H2O)
Comments: Brown-yellow hilairite grains with white, prismatic natrolite crystals. Location: Malerod, Larvik, Norway. Scale: See Box (2 x 2 cm). © Sonke Stolze / Systematic Minerals
Hilgardite: Ca2B5O9Cl·(H2O) Boracite: Mg3B7O13Cl
Comments: Sub-mm reddish orange crystals of hilgardite on white boracite. Location: Boulby Mine, Loftus, Cleveland, Great Britain. Scale: 1.5 x 2.5 cm. © John Veevaert
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
Hillite: Ca2(Zn, Mg)[PO4]2·2(H2O) Scholzite: CaZn2(PO4)2·2(H2O)
Comments: Morphology of a homogeneous larger cluster of hillite growing on an acicular crystal of scholzite. SEM back-scattered electron image. Location: Lower Cambrian Parachilna Formation, Reaphook Hill, South Australia, Australia. Scale: See Image. © Canadian Mineralogist