VERA CRUZ AMETHYST CRYSTAL
A beautiful Vera Cruz Amethyst Crystal cluster! One of those crystals you know the location of as soon as you see it. Delicately coloured, well terminated and with some small crystals and no matrix. A collection worthy piece with great properties. Treat yourself. Mounted for enhanced display on a perspex pad. The second photo of the main crystal from the top, shows the trigonal habit of this quartz, with three of the 6 sides much larger than the other three, giving a triangular look to it.
Amethyst: A purple variety of quartz. The colour is caused by iron (Fe4+) impurities.
8.5cm x 4.7cm x 7.5cm, 56g.
Silicon Dioxide: SiO2.
Quartz is one of the most common minerals found in the Earth’s crust. If pure, quartz forms colorless, transparent and very hard crystals with a glass-like luster. A significant component of many igneous, metamorphic and sedimentary rocks, this natural form of silicon dioxide is found in an impressive range of varieties and colours.
Quartz in it’s polished form was the most advanced technology thousands of years ago, used by the Assyrians. Quartz was used as a lens to focus light and could start a fire. The Vikings would have used one of these to find the sun on a cloudy day. It would have been used as a magnifying glass too. Today it leads technology being the main component of transistors which make our computers work and solar panels.