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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
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
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
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
Inesite: Ca2Mn7Si10O28(OH)2·5(H2O)
Comments: Bladed crystals of orangish pink Inesite. Location: N'Chwaning Mine, Kalahari, South Africa. Scale: 14 x 7.5 cm. © John Veevaert
Iowaite: Mg4Fe+++(OH)8OCl·2-4(H2O)
Comments: Floater crystal of iowaite. Location: Palabora Mine, Transvaal, South Africa. Scale: Crystal size 1.2 cm. © John Veevaert
Iranite: Pb10Cu(CrO4)6(SiO4)2(F,OH)2
Comments: Crystals of iranite to 3mm on brecciated, siliceous matrix. Location: Sebarz mine, Anarak, Iran. Scale: 3.7 x 2.5 cm. © John Veevaert
Iron: Fe
Comments: Specimen of volcanic rock containing dark gray grains of native Iron. This locality is one of the very few known localities for terrestrial native iron. Location: Disko Island, Greenland. Scale: Picture size 1 cm. © John Veevaert
Ixiolite: (Ta,Nb,Sn,Mn++,Fe++)O2
Comments: Hemispherical crystalline aggregate of ixiolite. Location: Muiane mine, Zambesia, Mozambique. Scale: Specimen size 1.3 cm. © John Veevaert