Ferberite

Ferberite is an important ore of Tungsten. It is also very aesthetic: A jet-black, opaque and very heavy mineral with a metallic luster. Quality specimens are fairly rare and are subsequently highly sought after by mineral collectors. It is associated with numerals minerals including Quartz, Siderite, Fluoriote, Muscovite, Calcite, Pyrite and Scheelite to name a few.

The crystal system for Ferberite in Monoclinic, most often forming long prismatic crystals, columnar groups, chisel/wedge-shaped crystals, and flattened tabular crystals. Other forms include bladed clusters and rosettes, reticulated, acicular, grainy, in veins, encrusting, massive and repeated twins.

Quality Ferberite specimens have somewhat limited localities. Notable locations include Bolivia, China, Germany, Kazakhstan, Portugal, Romania and the USA (Colorado).

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