Cassiterite and Calcite Cluster, Yaogangxian Mine, China
Size: 1.8 × 1.5 × 1.3 inches
Weight: 2.12 oz (60 grams)
This exquisite raw mineral specimen features a striking combination of Cassiterite and white calcite, sourced from the renowned Yaogangxian Mine in Hunan, China. Weighing 2.12 oz and measuring 1.8 × 1.5 × 1.3 inches, this piece showcases dark metallic-black ferberite blades adorned with soft, flower-like calcite formations that glow under UV light.
Yaogangxian is one of the most celebrated mineral localities in China, known for producing highly aesthetic and well-crystallized mineral combinations. This specimen exemplifies the unique dual mineral growth with excellent contrast between the dense, lustrous ferberite and the delicate, snow-white calcite. The calcite exhibits beautiful fluorescence, making this piece visually engaging under both natural and ultraviolet lighting.
A perfect addition for collectors focused on rare multi-species specimens, this piece holds strong display value and educational appeal. Ferberite is a key tungsten-bearing mineral, while calcite is prized for its clarity and energetic qualities. Together, they form a balanced composition ideal for mineral enthusiasts, metaphysical practitioners, and advanced crystal collectors alike.
Specimen details
| Mineral | Cassiterite |
|---|---|
| Locality | Yaogangxian Mine, China |
| Crystal system | Tetragonal |
| Dimensions | 4.6 cm × 3.8 cm × 3.3 cm |
| Weight | 60 g |
| Color | Multicolor |
| Size | Miniature (up to 2 inches / up to 5 cm) |
| Species | Calcite |
| Condition | No damage on display faces |
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About this specimen
This exceptional Cassiterite and Calcite Cluster is a stunning natural specimen sourced from Yaogangxian, China. The cluster features multiple well-formed crystals displaying metallic luster that makes it a standout addition to any mineral collection.
Calcite (CaCO₃) crystallizes in the trigonal crystal system with a Mohs hardness of 3. This mineral is known for strong double refraction (birefringence), rhombohedral cleavage, and reactivity with dilute hydrochloric acid. Specimens from Yaogangxian, China are particularly valued among collectors for their quality and character.
This specimen weighs 2.12 oz (60.1 g) and measures approximately 1.8 × 1.5 × 1.3 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 Calcite specimen offers exceptional quality and visual appeal. It makes an impressive addition to a specimen cabinet, educational display, or curated mineral collection — Calcite is one of the most common minerals on Earth, valued by collectors for its incredible crystal diversity and optical properties.
About Yaogangxian Mine
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