File:Biaxial quartz wedge positive.png
From The Gemology Project
Biaxial_quartz_wedge_positive.png (368 × 373 pixels, file size: 104 KB, MIME type: image/png)
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|current||05:17, 10 June 2007||368 × 373 (104 KB)||Doos||By Doos|
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