Amethyst Geode Cut Base - 605gm Brazil Raw Vary between 13

Vary between 13

Diagonal space between prongs is 6

175gm - 11cm x 3

fine geode points

Ocean Jasper Skulls with the most gorgeous colours including pale pink

Amethyst Geode Cut Base - 605gm Brazil Raw Vary between 13Amethyst Geode Free Standing Cut Base 605gm 10. 5cm x 10. 5cm x 8. 5cm 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,