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Wonderful patterning and mixed hues, strong phosphorescence from Puttapa Mine, Australia. The bright
white areas are most likely all willemite; the white mineralization graded the highest percentage of zinc in all
these pieces. The bright green fluorescing color is also willemite – very phosphorescent.
The two primary
minerals in this piece are willemite and calcite, but we’re sure we will learn of more as further testing is done.
The Garpenberg mine is located in Bergslagen, a very old mining area in the southern part of Sweden.
The mine is very active today and is one of Europe's most progressive underground mining operations. Collecting is not possible, and the few specimens that reach collector's hands are highly prized. The mineralogy is quite similar to that of Franklin NJ.
