Chromotremolite - variety of Tremolite (Amphibole) rich in Chromium.
  
 From: Merelani Hills, Simanjiro, Manyara, Tanzania.
  
 Subeuhedral primatic crystal of translucent light green Chromotremolite associated with thin lamellae of black Graphite with metallic luster. Sample measuring 4.0 x 1.8 x 1.6cm . Associated with high pressure metamorphic rocks.