This Specimen has been sold.
Fluorescent Zircon Crystal in Feldspar & Biotite - Norway
This beautiful specimen contains a deep red zircon crystal that is still partially embedded in the feldspar and biotite (mica schist) matrix that it formed within. It was collected from Finnmark, Norway and the crystal measures .33" wide. Under short-wave UV the zircon fluoresces a stunning yellow color!
Zircon belongs to the nesosilicates group and forms as tetragonal crystals. Its common chemical formula is ZrSiO4, which can be altered by a variety of impurities. Certain impurities result in formation of zircon crystals with a wide variety of colors (white, colorless, blue, red, green, yellow, orange, brown, pink, purple, and gray). Certain impurities within zircon crystals can be radioactive, however the radioactivity is typically minimal and is generally believed to be safe, without posing any health hazards.