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Glaucochroite: CaMnSiO4 Zincite: (Zn,Mn)O Willemite: Zn2SiO4
Comments: Pinkish gray crystalline glaucochroite intermixed with pale green willemite, with dark red zincite and white calcite. Location: Franklin, Sussex County, New Jersey, USA. Scale: See Photo. © Jeff Weissman / Photographic Guide to Mineral Species