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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
These stones are still very beautiful though
Dinosaur Bone: This one is a bit unusual for us
best visible under 365nm UV
1x 8k prepolish diamond compound syringe
Sparkly Zincite Gem 6.1ct CTH It is used as aThis 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.