Amethyst - Double Terminated Point #1 Halite 8cm diameter - 970gm -

8cm diameter - 970gm - beautifully translucent honey colour with many flashes

Galena and Calcite

75cm diameter - 49gm

- inner strength and development

- similar in appearance to hematite

Amethyst - Double Terminated Point #1 Halite 8cm diameter - 970gm -Amethyst Double Terminated Point 5. 5cm x 2. 5cm x 2. 25cm 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