![](http://www.alamy.com/thumbs/6/2C7746F6-ADEB-450A-80CD-28FCEAA85095/A70D17.jpg)
Structure of a quartz
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Photo credit: © John Lens / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: achat, chalcedon, coloured, druck, environment, erosion, farbig, future, gebändert, gelblicht, geologie, geology, geschliffen, ground, herstellung, historie, history, mineralien, natur, nature, pressure, quarz, scharf, schmuck, sharp, steine, stones, structure, strukturen, tropen, umwelt, yellow, zukunft