Amethyst from Guerrero, Mexico
Amethyst is the violet or purple variety of the common and ubiquitous mineral, quartz. Quartz (rock crystal) is silicon oxide (silica) and the most frequent major component of beach sands. It is found all over the world in many different rock types, often
Picture No
13626258
Media ID
43168143
Size
2553px x 3855px
(4.6MB)
Credit
Joel Arem /Science Source/ www.ardea.com
Category
NA
Availability
Available in UK only. No agents
Ardea Picture Library
Picture No
13626258
Contributor Ref
SCS-90075492
