SKU: P_26-6_18
The presented specimen is a compact, three-dimensional cluster of black schorl tourmaline crystals, distinguished by an intense, mirror-like luster on all faces. Among the dominant black forms, several smaller, transparent smoky quartz crystals can be seen. Main features: high, mirror-like luster of schorl crystals; presence of transparent smoky quartz crystals. Condition: Very good, with no visible mechanical damage.
Price: 25 EUR (109 PLN)
Availability: In stock
Location: Erongo Mountains, Erongo Region, Namibia
Size: 32 x 24 x 25 mm
Weight: 31.5 g
Chemical formula: NaFe₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₄
Crystal system: Trigonal
Mohs hardness: 7.0