Zincite Specimens, Manmade Smokestack Crystals from Poland halloween putting intentional scratches into the

putting intentional scratches into the surface to help retain diamond and increase surface complexity

Each piece of rough is available individually

grown using the Czochralski pulling methods

but it really never caught on and is rarely grown today

Zincite Specimens, Manmade Smokestack Crystals from Poland halloween putting intentional scratches into theThese are specimens of zincite, or zinc oxide, which grew in a refinery smokestack in Poland. Apparently this material was accidentally produced in an old Soviet era refinery which had very dirty, zinc rich exhaust as the gases cooled the zinc oxide crystallized out, slowly building up transparent gemmy crystals in a variety of colors and forms. Some are even fluorescent, in part or in whole. Specimens like this are called 'anthropogenic' not