Amethyst Cluster | Brazil opal often forms with vertical striations

often forms with vertical striations

is weakly to moderately magnetic and has a Mohs hardness of 5

They each display unique flashes of blue

botryoidal-derived banding where the malachite transitions into the vivid Chrysocolla matrix

A classic Brazilian pegmatite specimen featuring black tourmaline crystals embedded within a matrix of quartz and feldspar

Amethyst Cluster | Brazil opal often forms with vertical striationsAmethyst is a purple to violet variety of quartz (SiO2). Its color comes from trace iron and exposure to gamma radiation. Though it can be found all over the world, some of the highest quality specimens come from Brazil and Uruguay. Its name comes from the Greek word ""amethytos"" meaning not drunk. Today, popular holistic beliefs is that this crystal can bring mental clarity and tranquility. This item is 4" x 3. 5" and weighs 8. 45 oz