Siderite, Quartz from Mésage Mine, Saint-Pierre-de-Mésage, Vizille, Isère, Auvergne-Rhône-Alpes, France. Comes with certificate of authenticity. Type of stone: Siderite, Quartz. Dominant color: multicolored. Origin: France. Average weight (Carats): 525.3 carats. Dimensions (mm): 60 x 40 x 37 mm. Ref. : SKU019408. Association of quartz and siderite, often found in sedimentary deposits. Used for decorative objects and mineralogical collections.