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Chambersite: Mn3B7O13Cl
Comments: Tetragonal crystals of chambersite extracted from salt dome deposits. Location: Barkers Hill, Mont Belvieu, Chambers County, Texas, USA. Scale: Size Not Given. © Lou Perloff / Photo Atlas of Minerals
Chamosite: (Fe++,Mg,Fe+++)5Al(Si3Al)O10(OH,O)8
Comments: Dark green sectile massive chamosite. Location: Jalgaon, Maharashtra, India. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Changbaiite: PbNb2O6
Comments: BSE image of a zircon grain with inclusions of bastnasite? (bs), columbite (cb), cerofluorite (ce), chanbaiite (ch), cryolite (cry), thorite (th), xenotime (xe) and niobium-rich iron oxides (Nb-Fea). Location: Rhyolite laccoliths from the Sierra Blanca Peaks, Trans-Peco region, Texas. (AmMin, v 74:865). Scale: See Image. © American Mineralogist
Chaoite: C
Comments: Dark masses of chaoite intermixed with graphite on rock shocked by meteorite impact. Location: Ries Crater, Bopfingen, Bavaria, Baden-Wurttemberg. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Chapmanite: Sb+++Fe+++2(SiO4)2(OH)
Comments: Green, earthy chapmanite on quartz-sulfide matrix. Location: Neue Hoffnung Gottes Mine, Bräunsdorf, Freiberg District, Erzgebirge, Saxony, Germany. Scale: Picture size 5 mm. © Thomas Witzke / Abraxas-Verlag
Charlesite: Ca6(Al,Si)2(SO4)2B(OH)4(OH,O)12·26(H2O)
Comments: 1 cm white crystal of charlesite on calcite with small (2 mm) octahedral crystals of galena. Location: N'Chwaning Mine, Kalahari Manganese Field, Northern Cape Province, South Africa. Scale: Picture size 2.5 cm. © John Veevaert
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) Tinaksite: K2Na(Ca,Mn++)2(Ti,Fe)O[Si7O18(OH)]
Comments: Polished slab of deep purple chariote with inclusions of black augite, white feldspar and orange tinaksite. Location: Murun, Siberia, Russia. Scale: Picture size 10 cm. © Kevin Ward
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O)
Comments: Polished slab of purple charoite. Location: Murun Massif, Chara River, Davan, Torgo River Basin, Aldan Shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 6.5 cm. © Thomas Witzke / Abraxas-Verlag
Comments: Yellow-brown prismatic tinaksite crystals in purple charoite with black aegirine. Location: Murun, Aldan Uplift, Chara and Olekma Rivers, near Olekminsk, Republic of Sakha, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) Fedorite: KNa4Ca4(Al,Si)16O36(OH,F)4·6(H2O)
Comments: Tan crystalline platy fedorite in pale violet charoite. Location: Murun, Republic of Sakha, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) Tokkoite: K2Ca4[Si7O18(OH)](F,OH)
Comments: Yellow crystalline tokkoite intermixed with purple charoite (viewed cross-sectional to fiber direction). Location: Murun, Aldan, Republic of Sakha, Siberia, Russia. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species