Here is a set of three different Birdseye Sphalerite pieces from the Zinc Corporation of America Mine #4 in Balmat, NY. This sphalerite...

Here is a beautiful multicolored specimen from the Kelly Mine in New Mexico. This piece has Smithsonite that fluoresces Red and Violet,...

Here is a SEVEN color fluorescent specimen from the Merelani Hills in Tanzania. Under Shortwave UV you can see Yellow fluorescing...