Fluorite with Quartz
specimen number:
2312201
location:
Huanggang Mines, Inner Mongolia, China
description: The Huanggang Mines, situated in the Southern Great Xing'an Range of Inner Mongolia, China, represent one of the largest skarn-type iron and tin polymetallic deposits in Asia. Historically developed as a major mining district, the complex formed primarily during the Early Cretaceous as a result of intensive Yanshanian magmatic activity. Geologically, the deposit is characterized by extensive contact metasomatism where post-magmatic hydrothermal fluids from granitic intrusions interacted with Permian carbonate and sedimentary rock sequences. This process produced rich, zoned calc-silicate skarn assemblages dominated by garnets and pyroxenes, which host massive accumulations of magnetite, cassiterite, and associated base-metal ores.
A cluster of colorless quartz crystals, these hosting beautiful deep blue crystals of fluorite to 1.3 cm in size. Great color contrast in perfect condition.
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