Lavenite 1.21 ct.
Trilion Cut  7.30 x 7.30 x 5.20 mm Y99786

Lavenite (Låvenite)

is a complex silicate with formula (Na,Ca)2(Mn,Fe2+)(Zr,Ti,Nb)Si2O7(O,OH,F) and hardness of 6.

This rare mineral comes from Suoluaiv Mt Lovozero Murmanskaya Oblast Russia. Brownish with black aegirine.