3.1" Colorful Cubic Fluorite Crystals with Phantoms - Yaogangxian Mine

This is a stunning cluster of cubic fluorite crystals with purple outer phantoms, underlying blue-green phantoms, and gorgeous purple cores. It was collected from the Yaogangxian Mine in the Hunan Province of China. A unique characteristic of this fluorite is that under short-wave ultraviolet light, the crystals exhibits a purple fluorescence throughout, with vibrant fluorescent phantoms along the edges just beneath the exterior, and spots of red-orange fluorescence that are likely caused by inclusions or impurities.

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.


FOR SALE
$85
DETAILS
SPECIES
Fluorite
LOCATION
Yaogangxian Mine, Yaogangxian W-Sn ore field, Yizhang Co., Hunan, China
SIZE
Entire specimen: 3.1 x 2.3"
CATEGORY
SUB CATEGORY
ITEM
#217411