CHAPTER 11 ELEGANT CRYSTAL ANIMAL SHAPES Picture #79 12-inch-long Citrine Dolphin Carving and polishing quartz crystal is a really tough and complicated job. Quartz crystal, like the citrine dolphin pictured here, requires diamond-dust tools to cut and polish. Quartz is as hard as granite. In fact, granite is composed of 60% microcrystalline quartz crystal. You […]
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