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each is photographed individually
best visible under 365nm UV
either as blocky pieces ideal for versatile cuts or corners which are good for trillions
Dinosaur Bone: This one is a bit unusual for us
It is used as a Q switch--adding a V:YAG crystal to some lasers turns them from a weak continuous-firing laser to a powerful pulsed laser that concentrates all of its energy into brief bursts of power
Sparkly Zincite Gem 6.1ct CTH each is photographed individuallyThis is a zincite crystal that I faceted. It weighs in at 6. 1ct. These crystals grew unintentionally in a Polish zinc refinery smokestack which was demolished in the 70s. It is also filled with sparkly zinc crystals. These unfortunately also cause unavoidable scratching in the final polish but they also add a rainbow sheen when viewed from the right angle. The stone also has some minor chipping.
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