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Description
Barite is found at both Franklin and Sterling Hill in small masses,
crystals and grains, but is not always fluorescent. Generally only those
samples of grains or small masses embedded in fluorescent calcite are
fluorescent.
Calcite is the predominant mineral of the Franklin Marble, the host rock
for both orebodies. Calcite within, and in close proximity to, the Zn-Mn-Fe
orebodies generally fluoresces bright reddish-orange.
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Daylight view
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Barite and calcite,
fluorescing cream and reddish-orange, respectively, under short-wave UV. Franklin, NJ.
Width 8 cm.
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Daylight view
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Barite and calcite,
fluorescing cream and reddish-orange, respectively, under short-wave UV. Franklin, NJ.
Width 8 cm.
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Specimens of cream-fluorescing barite in
red-fluorescing calcite can be quite attractive. Some samples also contain a third
fluorescent mineral, wollastonite, which glows with a distinctive yellow-orange color.
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Barite, calcite and
wollastonite, fluorescing cream, red and orange, respectively. Franklin, NJ. Width 3 cm.
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Be sure to visit the photo page taken
under shortwave ultraviolet light. |
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