Dark indigo-blue triclinic crystals on matrix of this rare specimen. The largest crystal measures 17 mm wide.
Ex Francesco Bedognč coll. with label, year 1998.
Formula :
(Mg,Al)8[O2/(Al,Si)6O18]
System: monoclinic,triclino Hardness:7½ Rarity:rare
Strunz id:VIII/F.15-10 -
SILICATES
Name origin: In allusion to its sapphire-like color.
|
 Specimen weight:28 gr.
 Crystal size:Up to 1,7 cm wide
 Overall size: 27mm x 27 mm x 36 mm
 Product Inquiry
 Minservice (Sondrio - Italy) Minservice Galleries Main
|
|
Product Inquiry
|
