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This is a great stone for beginners who want an uncomplicated cut or advanced cutters who want to show off their skills
It can be used to make lasers with tunable output wavelengths and especially powerful
so we put them in vials
Note its hardness is 5
F-35 Fighter Jet Window Sapphire Facet Rough and Shards (F35 Gem) Size:F-35 Rough 8-9g This is a great stoneThese are chunks of lab created sapphire which were grown for use as sensor windows in the F35 fighter jet but didn't meet spec. These pieces may have cracks or bubbles and may also show light pink coloration. A couple pieces still have some of the molybdenum crucible attached. THESE CAN BE SHARP! HANDLE WITH CARE!!!! This is a really cool material lab sapphire grown for windows on the F35! These aren't used on the cockpit but on a sensor array right
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