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Hendricksite: K(Zn,Mg,Mn)3Si3AlO10(OH)2 Celsian: BaAl2Si2O8
Comments: Gray massive celsian with dark red hendricksite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Hendricksite: K(Zn,Mg,Mn)3Si3AlO10(OH)2
Comments: Reddish black hendricksite crystal in cream-colored willemite. Location: 'Mill Site', Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Heneuite: CaMg5(PO4)3(CO3)(OH) Raadeite: Mg7(PO4)2(OH)8
Comments: Translucent aqua colored greasy heneuite grain, surrounded by beige rim of raadeite, with dark blue phosphoellenbergerite inclusion (near top of heneuite), in quartz apatite rock. Location: Tingelstadt Iron Mine, Modum, Buskerud, Norway. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Henmilite: Ca2Cu[B(OH)4]2(OH)4 Olshanskyite: Ca2[B3O3(OH)6]OH·3(H2O)
Comments: Milky white olshanskyite hosting crystals of deep blue henmilite to 6 mm across. Location: Fuka Mine, Bicchu Town, Kawakama Co., Okayama Pref., Japan. Scale: Crystal size 6 mm. © John Veevaert
Henmilite: Ca2Cu[B(OH)4]2(OH)4
Comments: Blue crystals of henmilite in matrix. Location: Fuka Mine, Bitchu-Cho, Okayama Prefecture, Chugoku Region, Honshu Island, Japan. Scale: Crystal size 3 mm. © John Veevaert
Hennomartinite: SrMn+++2Si2O7(OH)2·(H2O)
Comments: Reddish brown hennomartinite included in purple sugilite. Location: Wessels Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: 0.5 mm. © John Veevaert
Henritermierite: Ca3(Mn,Al)2(SiO4)2(OH)4
Comments: Dark brown octahedral henritermierite crystal on massive material. Location: Wessels Mine, Kalahari Manganese Fields, Northern Cape Province, South Africa. Scale: Specimen Size 4.5 x 4 x 3 cm. © Rob Lavinsky
Henrymeyerite: BaFe++Ti7O16 Aegirine: NaFe+++Si2O6
Comments: A nearly black crystal of henrymeyerite with dark green prismatic crystals of aegirine in quartz. Location: Green River formation, Uintah County, Utah, USA. Scale: Picture size 3 mm. © Thomas Witzke / Abraxas-Verlag
Henrymeyerite: BaFe++Ti7O16
Comments: Slender prismatic crystals of henrymeyerite intergrown with stubby hexagonal prisms of fluorapatite and dolomite rhombohedra. (CanMin v 38. p 620). Location: Kovdor alkaline ultramafic complex, Kola Peninsula, Russia. Scale: Image size 0.2 mm. © Canadian Mineralogist
Hentschelite: Cu++Fe+++2(PO4)2(OH)2
Comments: Dark green botryoidal hentschelite in transparent quartz. Location: Spring Creek Mine, near Wilmington, South Australia, Australia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species