Columbite-tantalite inclusions in aquamarine

Weight: 2.84 g
Size: 26.2 x 8.5 x 7.1 mm

€35,00

 

Sample type: unpolished crystal
Origin: Pakistan
Comment: Scanning Electron Microscopy (SEM) confirmed inclusion identification of columbite-tantalite, forming dark brownish needles and often fan and star shapes.