5.4" Cubic Purple Fluorite with Phantoms - Yaogangxian Mine

This is a gorgeous cluster of cubic fluorite crystals that formed in association with small pyrite crystals on a quartz matrix. The fluorite has multiple phantoms within each crystal, with a prominent purple phantom about 1/8" from each crystal face. This cluster was collected from the Yaogangxian Mine in the Hunan Province of China.

Under short wave and long wave UV, these crystals fluoresce a vibrant purple color. It comes with an acrylic display stand.

The Yaogangxian mine is a tungsten-tin deposit in the Nanling Mountains of Hunan, China. The mine field is about 4 x 2.5 km (2.5 x 1.5 miles) and includes two primary deposits; the Yaogangxian quartz vein-type, tungsten-tin deposit and the Heshangtan skarn-type, tungsten-tin deposit.

The Yaogangxian quartz vein-type, tungsten-tin deposit (with minor greisen-style mineralization) has been mine since 1914 and hosts minor copper, tungsten, silver, lead, zinc and bismuth minerals. The Heshangtan skarn-type, tungsten-tin deposit has been mined since the 1960's and hosts a variety of associated silver ores. Both of these deposits are a result of the Mesozoic Yaogangxian pluton (composed of biotite-granite, porphyritic granite and quartz porphyry) which intruded into Cambrian-Devonian sediments and Jurassic limestones.

A variety of high quality mineral specimens are collected from this site. Some of the most popular minerals include arsenopyrite, bismuthinite, manganese-bearing calcite (manganocalcite), chalcopyrite, ferberite, fluorite, hübnerite, molybdenite, pyrite, rhodochrosite, siderite, stibnite, topaz and tungstite.

Fluorite, Pyrite & Quartz
Yaogangxian Mine, Nanling Mountains, Hunan Province, China
5.4 x 4.1"