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Strontianite or strontium carbonate (SrCO3) is the main ore for extracting strontium used in TV screens and firework colors. It has orthorhombic crystals, white and off-white, more rarely spiky and radiating as here. From ClausthalZellerfeld in German Harz. Width 65mm.
May 8th, 2013
Viewed 26 Times - Last Visitor from Beverly Hills, CA on 09/25/2014 at 6:48 PM
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