File:Biaxial quartz wedge negative.png
From The Gemology Project
Biaxial_quartz_wedge_negative.png (368 × 373 pixels, file size: 103 KB, MIME type: image/png)
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|current||04:16, 10 June 2007||368 × 373 (103 KB)||Doos||By Doos|
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