Cassiterite Crystal – Octahedral Form – Xuebaoding Mt., Sichuan

Discover the vibrant allure of metallic luster cassiterite crystals from the pristine peaks of Xuebaoding Mountain, Sichuan, China. This specimen showcases cassiterite’s distinctive tetragonal crystal system, characterized by sharp, well-defined crystals with a bright, reflective metallic surface. With a hardness of 6 to 7 on the Mohs scale and a chemical formula of SnO₂, cassiterite is both durable and visually striking, making it a valued mineral for collectors.

Originating from the renowned Xuebaoding locality, known for producing high-quality cassiterite specimens, this piece exhibits a rich, dark brown to nearly black color with subtle reddish undertones visible under certain lighting conditions. The crystals are opaque with a brilliant metallic luster that highlights their complex crystal faces and prismatic forms. Such specimens from this region are sought after for their excellent crystallization and aesthetic appeal.

This cassiterite sample is an excellent addition to any collection emphasizing Chinese minerals, metallic lusters, or geological wonders. Its rarity and well-preserved crystal form make it ideal for display, study, or as a reference piece. To maintain its luster, it is recommended to handle the specimen carefully, avoiding exposure to acidic environments or prolonged moisture, and to gently dust it with a soft brush to preserve its natural shine.

Xuebaoding, Mt Pingwu, Sichuan, China — source of cassiterite, scheelite, and beryl on muscovite matrix.