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Chenevixite: Cu2Fe+++2(AsO4)2(OH)4·(H2O)
Comments: Green micro crystals of chenevixite on matrix. Location: Majuba Hill, Pershing County, Nevada, USA. Scale: Size Not Given. © John Veevaert
Childrenite: Fe++Al(PO4)(OH)2·(H2O)
Comments: Single, terminated crystal of childrenite. Location: Linopolis, Minas Gerais, Brazil. Scale: 2.6 cm. © John Veevaert
Chkalovite: Na2BeSi2O6
Comments: Massive, white chkalovite associated with dark aegerine. Location: Ilimaussaq, Tasseq, Greenland. Scale: 4.5 x 3 cm. © John Veevaert
Christelite: Zn3Cu2(SO4)2(OH)6·4(H2O) Paratacamite: (Cu,Zn)2(OH)3Cl
Comments: Robins-egg blue christelite with dark green paratacamite on matrix. Location: San Francisco mine, Sierra Gorda, Chile. Scale: 3 cm. © John Veevaert
Clinobisvanite: BiVO4
Comments: Numerous yellow to yellowish-orange sub-mm crystals of clinobisvanite on matrix. Location: Linka Mine, Lander County, Nevada, USA. Scale: 2.2 x 2.5 cm. © John Veevaert
Clinochlore: (Mg,Fe++)5Al(Si3Al)O10(OH)8
Comments: Purple clinochlore (Kammererite) crystal cluster. Location: Kop Daglari, Turkey. Scale: 1.4 cm across. © John Veevaert
Cobaltite: CoAsS
Comments: Cobaltite embedded in greenish gray dolomite. Location: Espanola, Ontario, Canada. Scale: 1.3 cm across. © John Veevaert
Cobaltomenite: CoSeO3·2(H2O)
Comments: Purple micro crystals of cobaltomenite on matrix. Location: Paris #25 mine, Thompson district, Utah, USA. Scale: 2.5 x 2 cm. © John Veevaert
Collinsite: Ca2(Mg,Fe++)(PO4)2·2(H2O)
Comments: Half nodule of nearly pure collinsite. The center of the specimen is a small piece of volcanic rock surrounded by collinsite. Location: Francois Lake, British Columbia, Canada. Scale: 7 x 5.5 cm. © John Veevaert
Conichalcite: CaCu(AsO4)(OH) Willemite: Zn2SiO4
Comments: Conichalcite with willemite. Location: Collected from the 30 level of the Tsumeb mine. Tsumeb, Namibia. Scale: 2.1 x 1.5 cm. © John Veevaert