|The mineral Wulfenit is lead
molybdenum (Pb(Mo04)). According to its symmetric
elements and crystal shape, which reflect a crystal
structure, it belongs to the tetra logical pyramid type
It was first mentioned as a "yellow lead ore" by Ljubljana's Jesuit professor Franz Xaver von Wulfen in 1785. The mineralogist Heidinger named the ore after Wulfen in 1845 calling it Wulfenit.
In the Mezica valley wulfenit appeared
in the cracks of the limestone and dolomitic of middle
Triassic age together with galena, phalerite and calcite
in the highest and oxidized parts of the lead-zinc mine.
Mostly square lamellate crystals were found measuring up
to 7 cm. More rare were the pointed crystals, which
measured up to 3 cm, with developed flat pyramids and
dipyramids. Different shades of orange, yellow,
red-orange, yellow-brown and brown colours reflect traces
of different amounts of primary matter from the oxidized
You can see Wulfenit Stamps also on
FDC, MC and envelopes:
1997 JOE'S STAMPS . All rights reserved.
Revised: april 12, 2000.