Large Quartz cabochon inclusions tourmalines

Included quartz of Tourmaline crystals
 Origin :  Brazil
 Weight:  6.23 carats
 Cut Style : Round Cabochon
 Dimensions : Diameter 12 mm x 5.8 mm height 
 Color : colorless to brown 
 Transparency : Transparent 
 Luster : Vitreous 
 Comments:  numerous needle-like inclusions of tourmaline crystals