Jamesonite Pb4FeSb6S14 Monoclinic

Description: Jamesonite is a metallic fibrous gray mineral formed generally from hydorthermal fluids.

MARATHON COUNTY: Acicular jamesonite crystals up to 3 cm. long are found in the Wausau Pluton. The jamesonite is enclosed in quartz and outlines phantom crystals. (Falster, 1987).

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