SKU: P_26-1_23
The specimen displays the characteristic combination of deep black tourmaline crystals with a contrasting light background typical for this location. The main, massive schorl column rises from the white rock, distinguished by a high, glassy surface luster. Smaller, sharply terminated crystals are also arranged against the albite, creating a cohesive composition set on a stable rock fragment. Main features: strong contrast of black schorl with white albite; high luster of crystal surfaces; presence of numerous smaller crystals around the main growth. Condition: Good.
Price: 23 EUR (99 PLN)
Availability: In stock
Location: Erongo Mountains, Erongo Region, Namibia
Size: 53 x 48 x 38 mm
Weight: 71.6 g
Chemical formula: NaFe₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₄
Crystal system: Trigonal
Mohs hardness: 7.0
Rarity: Very Common