Tremolite - Tanzania Here is a killer example

Here is a killer example of Brazilian quartz

This helped prevent any dirt and other debris from damaging the soft tissues found inside

This is the same process that occurs to form amethyst

Grapefruit

Tremolite - Tanzania Here is a killer exampleTremolite is part of a group of silicate minerals that forms in sediments rich in dolomite and quartz. Pure tremolite is a creamy white but will change to a green color depending on the content of iron present. Nephrite jade is actually just a green variety of tremolite. Unfortunately, the fibrous form of this mineral has been classified as one of the six recognized forms of asbestos. At high environmental temperatures, this mineral will convert to