Amethyst from Vera Cruz, 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
13626257
Media ID
43153234
Size
3855px x 2553px
(3.8MB)
Credit
Joel Arem /Science Source/ www.ardea.com
Category
NA
Availability
Available in UK only. No agents
Ardea Picture Library
Picture No
13626257
Contributor Ref
SCS-90075491
