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. it has piezoelectric property. quartz is one of the most useful mineral. varieties of quartz such as agate, amethyst and citrine are used as gemstone and jewelry purpose. some varieties of quartz such as citrine, prasiolite are heat treated. it forms in igneous, metamorphic and sedimentary rocks. occurrence...
. it has piezoelectric property. quartz is one of the most useful mineral. varieties of quartz such as agate, amethyst and citrine are used as gemstone and jewelry purpose. some varieties of quartz such as citrine, prasiolite are heat treated. it forms in igneous, metamorphic and sedimentary rocks. occurrence...