Cassiterite with Quartz – Yaogangxian Mine, Hunan, China
Weight: 165g / 5.8oz
Size: 1.3 × 1.4 × 2.7 in
This is a striking rare specimen of cassiterite (tin oxide) in association with clear quartz, originating from the renowned Yaogangxian Mine in Hunan Province, China. The cassiterite crystals exhibit classic twinned, lustrous black metallic surfaces with well-defined striations. These crystals are sharply terminated and robust, showcasing excellent form and brilliant natural sheen.
Adhered to the cassiterite is a transparent, water-clear quartz crystal with a slightly pinkish hue and excellent termination. This pairing makes for a compelling contrast between the dense, metallic cassiterite and the glassy quartz, highlighting the unique geological beauty of Yaogangxian material.
This piece is ideal for collectors specializing in Chinese mineral localities, tin-bearing minerals, or attractive quartz associations. Yaogangxian specimens of this caliber are increasingly hard to find, particularly ones with balanced composition, contrast, and intact terminations.
Perfect for cabinet display, mineral enthusiasts, or as a thoughtful gift for a crystal lover.
Material: Cassiterite (SnO₂), Quartz
Origin: Yaogangxian Mine, Yizhang County, Chenzhou, Hunan, China
Use: Mineral collection, healing, education, interior decor
Specimen details
| Mineral | Cassiterite |
|---|---|
| Locality | Yaogangxian Mine, China |
| Crystal system | Tetragonal |
| Dimensions | 6.9 cm × 3.3 cm × 3.6 cm |
| Weight | 164 g |
| Color | Clear |
| Size | Small Cabinet (2–4 inches / 5–10 cm) |
| Species | Clear Quartz |
| Condition | No damage on display faces |
Tags
About this specimen
This exceptional Cassiterite and Quartz Specimen is a stunning natural specimen sourced from Yaogangxian, China. This specimen features well-developed crystal form displaying metallic luster that makes it a standout addition to any mineral collection.
Quartz (SiO₂) crystallizes in the trigonal crystal system with a Mohs hardness of 7. This mineral is known for vitreous luster, conchoidal fracture, piezoelectric properties, and exceptional durability. Specimens from Yaogangxian, China are particularly valued among collectors for their quality and character.
This specimen weighs 5.8 oz (164.4 g) and measures approximately 2.7 × 1.3 × 1.4 inches, representing a rare example. Each specimen is carefully hand-selected to ensure excellent crystal development, natural aesthetics, and display-worthy presentation. Photographs represent the actual specimen you will receive.
Whether you are a seasoned mineral collector, a geology enthusiast, or searching for a distinctive natural display piece, this Quartz specimen offers exceptional quality and visual appeal. It makes an impressive addition to a specimen cabinet, educational display, or curated mineral collection — Quartz is the most abundant mineral in Earth's continental crust, treasured by collectors and widely used in electronics and optics.
About Yaogangxian Mine
