Aegirine - Pyroxene Group.
 
 
From: Malosa Mts., Zomba, Malawi.
 
 
Subhedral, prismatic, monoclinic, dark green, opaque Aegirine crystals covered with small white prisms of potassium Feldspar and Zircon (brown). Formed in an alkaline pegmatitic environment. Sample measuring 6 x 4 x 2 cm and weighing 62 g.
 
 
Supplied in a 6 x 6 cm cardboard box with identification.