Pink topaz crystal from Katlang, Pakistan showing a delicate peach-to-pink body-color and a clean, well-defined prismatic habit with natural growth texture along the length of the crystal.
Topaz is an aluminum fluorosilicate (Al2SiO4(F,OH)2) best known in gemstones for its high hardness (Mohs 8) and its perfect cleavage , so intact crystals like this are appreciated by collectors
18.8 x 14.3 x 11.1 mm / 23.965 carats
Estimate: $125 - $135