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Dolomite: CaMg(CO3)2
Comments: Pink rhombohedral crystals of dolomite on matrix. Location: Eugui, Navarra Province, Navarra, Spain. Scale: Not Given. © Lou Perloff / Photo Atlas of Minerals
Dolomite: CaMg(CO3)2 Dissakisite-(Ce): Ca(Ce,REE)(Mg,Fe++)(Al,Fe+++)2Si3O12(OH)
Comments: Small, prisimatic, acicular crystals of tan-colored dissakisite-(Ce) scatterd on white crystalline dolomite. Location: Trimouns mine, Luzenac, Ariège France. Scale: Picture size 5 cm. © Fabre Minerals