SKU: B_38_0010
Aesthetic, bicolor tourmaline crystal set on a fine, light matrix. The specimen exhibits very interesting and sharp color zoning - its lower half is almost colorless and highly transparent, transitioning to a green hue at the apex. The main prism has a flat, matte termination. Main Features: color zoning (colorless bottom, green top); high transparency; flat termination; growth with a smaller side crystal. Condition: Very good - the main crystal is preserved in very good condition with a smooth, undamaged apex termination.
Price: 20 EUR (89 PLN)
Availability: In stock
Location: -, Afghanistan
Size: 13 x 13 x 27 mm
Weight: 3.5 g
Chemical formula: (Na,Ca)(Li,Mg,Fe,Mn,Al)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄
Mohs hardness: 7-7.5