This specimen is loaded with the zinc bearing minerals sphalerite (variety
cleiophane),
willemite
and
franklinite. Under SW UV light the sphalerite is fluorescent orange, blue
and peach colored. The
willemite
is a typical fluorescent green. Cleiophane is a colourless variety of
sphalerite.
Origin: Buckwheat Dump, Franklin, New Jersey, U.S.A.
Sample size: 8.2 x 6 x 5.3 cm
Sphalerite with
fluorite
Origin: Minerva #1 Mine, Hardin Co., Illinois, United States
Sample size: 8 x 7 x 3 cm
This complete cubic crystal of
galena is
nearly smothered with crystals of ruby jack sphalerite. The largest sphalerite
crystals reach up to 0.5 cm across.
Origin: Picher, Ottawa County, Oklahoma, U.S.A.
Sample size: 4.4 x 3.5 x 2.5 cm
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