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Helvite: Mn4Be3(SiO4)3S Rhodochrosite: MnCO3
Comments: Yellow crystals of helvite on quartz and pink rhodochrosite.
Location: Galerie Elisabeth, Cavnic, Maramures, Romaina.
Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals
Comments: Large (for the species), triangular yellowish creamy colored crystals of helvite on white, albite matrix.
Location: Navegador mine, Conselheiro Pena, Minas Gerais, Brazil.
Scale: Crystal size 0.7 x 0.7 cm.
© Fabre Minerals