Leighton S.'s Photo Gallery
7PK-T20Quartz (Var: Chalcedony) SiO2 , Quartz SiO2
Larimer County, Colorado, USADimensions: 8.9 mm x 11.43 mm x 1.9 mm
Weight: 369 g
I took this photo using a small hand held Mineralight model UVS-11 made in the 60's.The specimen fluoresces different colors under different waves of light. It glows a orange color under a regular black light. A local expert told me it is Chalcedony. I believe it may be something else possibly.
This is me Leighton
Loveland, Larimer County, Colorado, USAOn a hike at Devils Backbone Loveland Colorado