Smoke quartz
Konstantinos Kourtidis
Demokritus University of Thrace, Xanthi, Greece
The Smoke quartz chemical formula is SiO2. The crystal system is trigonal. Smoke quartz orginates from colorless quartz, that changes colour because of exposure to radioactivity. The one in the photo, found near Little Rock, has been artificially exposed.
Reuse
Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported (CC BY-NC-SA 3.0) (opens in a new window)Credit: Konstantinos Kourtidis (distributed via imaggeo.egu.eu)
Properties
Type
Image
Format
JPG
Size
3.3 MB
Width
3072 px
Height
2304 px
Aspect
4:3
Brand
Panasonic
Model
Lumix DMC-FZ8
Exposure
13 mm f/3.2 1/8 s ISO 200
Taken
15 October 2010
Coordinates
34.8520, -92.2412
Tint
White
Submitted
7 January 2011
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