Email comments or suggestions:

Home

RSS Feed
  • reddit
  • Facebook Social Icon

Subscribe to our RSS (Real Simple Syndication) feed to get new posts delivered directly to your desktop!

Nature’s Rainbows is a non-commercial web site 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.

Like us on Facebook!

Zinc Minerals Willemite and Smithsonite from Tsumeb, Namibia.

Green Willemite and white-tan Smithsonite -as  described in Robbins (1994). Willemite covers about half of the surface of the specimen and consists of several crystals (most of them sub-millimeter).  There are several cavities/vugs.

Fluorescence:

  • Yellow under LW and MW (best in MW)

  • Sky-blue in SW

  • Very phosphorescent (2nd pic)

Smithsonite covers the other side. Hundreds of white and tan crystals of about 1mm fluoresce a vivid blue under SW. Purple hue is also evident. MW and LW are not significant.  Strongly phosphorescent after SW.  Purchased at the Vienna Mineral show for 20E. (<gasp>)


Size: 80 x 50 x 35 mm

weight: 255g

(Photos by, and from the collection of Stefano Barbara)

 Longwave

 

White light

 

Shortwave

Phosphorescent

 

 White light side2

Shortwave Side2

SW Close

 

 

 

 

 

 

 

 

 

 

 

Please reload

Recent GlowNotes Posts

Please reload

Visit the GlowNotes Blog to view more - educational posts, equipment, minerals, photography and displays

Related Posts:

Please reload