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Measurements: 66 x 55 x 20 mm Description: Citrine quartz crystals sit on a thin basalt matrix. The crystals were originally amethyst, but the specimen was then baked at a high temperature (roughly 400 degrees C) for about half a day, which turned the colour to citrine. The only notable damage is to the edges of the specimen. The matrix has been stabilized with cyanoacrylate glue. Weight
of Specimen: 85.8 g Chemical Composition: SiO2 (quartz) Hardness on Mohs Scale: (quartz) 7 Location:Specimen
Code: OTH
015
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