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GIA acquires large collection of rare and unusual gemstones
Image Gallery (3 Images)
The Gemological Institute of America (GIA) has acquired a rare collection of 2,665 crystals, gemstones, and minerals with significant and unusual inclusions. | Source: GIA
A negative crystal in quartz containing a methane bubble, dark spots of a solid hydrocarbon, water and fluorescent petroleum. Field of view 2.17 mm. | Source: GIA/Nathan Renfro
John Koivula in his photomicrography lab.
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