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RM2053   Quartz var. Chalcedony with calcite and siderite

Tomasa Mine (Tomasa-San Valentín unit), La Unión-Cartagena, Murcia, Spain

This specimen shows an interesting group formed by a bluish, very bright botryodal chalcedony, which is partially covered by aggregates of calcite crystals, flattened, in axial growth, and with an excellent transparency and brightness. A worthy specimen of this near to disapeared quarry, close to the San Valentín quarry. A very aesthetic piece of this classic Murcia mining area.

Size: 7.8 x 6.4 x 4.6 cm.
Found in ±1988