Tiger's Eye - Pseudomorph of Crocidolite (a variety of fibrous Riebeckite) with limonitic and silicified alteration, giving it a yellow color and silky luster.
 
 
From: Prieska, Northern Cape, South Africa.
 
 
Sample with 5,0 x 4,5 x 3,0cm and 66 grams.
 
 
Supplied in a 6x6 cm cardboard box with identification.