10.5" Dark Purple Amethyst Cluster - Minas Gerais, Brazil

This is an outstanding cluster of amethyst crystals that was collected from Minas Gerais, Brazil. It consists of relatively large, lustrous, lavender-purple amethyst crystals that haven't undergone any polishing. It measures roughly 10.5" wide and weighs just under 16 lbs.

This specimen is accompanied by a metal display stand to assist with presentation.

Amethyst is a purple variety of quartz (SiO2) and owes its violet color to natural irradiation, iron impurities, and the presence of trace elements, which result in complex crystal lattice substitutions. It’s considered a semi-precious gemstone, and just two centuries ago was considered to have a value on par with diamonds, sapphires and rubies.

Much of the world’s amethyst comes from extensive deposits in Southern Brazil that have been heavily mined for about a century. The amethyst occurs in large cavities or geodes within volcanic rocks and the coloration and crystal size can vary greatly.

Quartz var. Amethyst
Minas Gerais, Brazil
10.5 x 9.9", Weight: just under 16 lbs