Amethyst Geode Cut Base - 420gm Brazil Obsidian *Price quoted is for one

*Price quoted is for one raw specimen that will be intuitively picked for you

making it durable and resistant to scratching

2cm (including link at top) 11gm weight

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Amethyst Geode Cut Base - 420gm Brazil Obsidian *Price quoted is for oneAmethyst Geode Free Standing Cut Base 420gm 9. 5cm x 8. 5cm x 6cm Amethyst is a purple variety of quartz composed of silicon dioxide (SiO). It forms when quartz crystallises from silica rich fluids, most commonly in hydrothermal veins and in cavities within volcanic rocks such as basalt. Like all quartz, amethyst has a hardness of 7 on the Mohs scale. The purple colour is caused by trace amounts of iron within the quartz crystal structure, modified by