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Howlite: Ca2B5SiO9(OH)5
Comments: Silky nodule of howlite. Location: Windsor, Nova Scotia, Canada. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hsianghualite: Ca3Li2Be3(SiO4)3F2
Comments: White crystalline areas of hsianghualite in dark green chloritic schist(?). Location: Xianghualing Mine, Hunan, Central South Region, China. Scale: Not Given. © Tom Loomis / Dakota Matrix
Huanghoite-(Ce): BaCe(CO3)2F Zhonghuacerite-(Ce): Ba2Ce(CO3)3F
Comments: Brown grains of zhonghuacerite-(Ce) in matrix. This type material may be Huanghoite-(Ce). Location: Bayan Obo iron mine, Baotou, Inner Mongolia, China. Scale: Not Given. © Diederik Visser
Huangite: Ca0.5Al3(SO4)2(OH)6
Comments: BSE image of alunite (light gray), natroaluminite (dark gray), minamiite (gray slender zone banded by natroaluminite), and huangite (medium gray). Location: Sulfuric altered andesite, Okumanza, Gunma Prefecture, Japan. Scale: Picture Size 0.31 x 0.24 mm. © Mineralogical Journal
Hubeite: Ca2Mn++Fe+++Si4O12(OH)(H2O)2 Inesite: Ca2Mn7Si10O28(OH)2·5(H2O)
Comments: Translucent, deep root beer brown, platy hueite crystals in fan-like groups to 1mm with delicate pink laths of inesite. Location: Fengjiashan Mine, Daye Co., Huangshi Prefecture, Hubei Province, China. Scale: Picture Size 5 mm. © Tom Loomis / Dakota Matrix
Comments: Brown hubeite aggregates accompanied by prismatic pinkish inesite crystals. Location: Fengjiashan Mine, Daye, Hubei China. Scale: 5.3 x 3.7 x 1.1 cm. © Fabre Minerals
Hubnerite: MnWO4
Comments: Sharp, dark tabular crystals of hübnerite with pyrite. Location: Cavnic, Romania. Scale: Crystal size 2 cm. © John Attard
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
Hulsite: (Fe++,Mg)2(Fe+++,Sn)O2(BO3)
Comments: Black crystalline granular massive hulsite. Location: Brooks Range, Seward Peninsula, Alaska, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Humberstonite: K3Na7Mg2(SO4)6(NO3)2·6(H2O)
Comments: White powdery aggregate of humberstonite. Location: Oficina Alemanin, Antofagasta, Chile. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species