Amethyst Geode Cut Base - 268gm Brazil
Original price
$32.00
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Original price
$32.00
Original price
$32.00
$32.00
-
$32.00
Current price
$32.00
Amethyst Geode Free Standing Cut Base
268gm - 8cm x 7cm - richer purple than photo shows
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Amethyst is a purple variety of quartz composed of silicon dioxide (SiO₂).
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It forms when quartz crystallises from silica-rich fluids, most commonly in hydrothermal veins and in cavities within volcanic rocks such as basalt.
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Like all quartz, amethyst has a hardness of 7 on the Mohs scale.
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The purple colour is caused by trace amounts of iron within the quartz crystal structure, modified by natural irradiation from surrounding rocks.
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This piece is sourced directly from Brazil.