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.


  • 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)



White light





 White light side2

Shortwave Side2

SW Close












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