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Hackmanite : Na8Al6Si6O24(Cl2,S)

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Copyright © Rob Lavinsky & irocks.com
 
 
 
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Hackmanite : Na8Al6Si6O24(Cl2,S)

Copyright © Rob Lavinsky & irocks.com  - This image is copyrighted. Unauthorized reproduction prohibited.
Dimensions: 4.4 cm x 4.2 cm x 3.4 cm

4.4 x 4.2 x 3.4 cm. This specimen exhibits an intense, saturated purple color. The crystal is sharp and well formed on front, contacted on the back, although 3-dimensional enough to display well. These crystals tend to occur embedded in the marbles of the location, and seldom do you get a pocket crystal that formed in an open space, and thus has better lustre and form than most. This piece, however, grew in such a manner, which partly explains why it looks so different from the vast majority of generally more pale, worn-looking examples from this locality (which has now produced the world's best of species). Joe Budd photos.


This photo has been shown 545 times
Photo added:18th Nov 2011
Dimensions:857x768px (0.66 megapixels)
Date/Time of Photo:31st Oct 2011 15:26:21
Camera:CANON EOS 5D Mark II
Software:Adobe Photoshop CS3 Macintosh
Exposure time:1/125s
Aperture:f/32.0
Focal Length:100mm
ISO speed:200

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