top of page

In the mix: sphalerite/wurtzite

Mixture of wurtzite and sphalerite from: Horn Silver Mine, Frisco, San Francisco District, San Francisco Mts, Beaver Co., Utah, USA.

When Don Newsome visited me in 2002 he gave me this specimen as a door prize. It's very strongly triboluminescent ! (you can see the scratchmarks.)

The orange fluorescence is probably wurtzite, the violet stuff sphalerite. Photo in SW-UV.

Nature’s Rainbows is a non-commercial website for the hobby community.  It is maintained entirely by volunteer hobbyists and contributors.  Our mission is to provide information about UV and luminescence, premium fluorescent mineral photos, and a fluorescent mineral database for the enjoyment of FL mineral collectors around the world.  Information on this web site is covered under a Creative Commons License.


Feel free to contact us with comments and suggestions.

bottom of page