Columbite-tantalite and albite inclusions in aquamarine

Weight: 2.51 g
Size: 30.0 x 6.8 x 6.8 mm



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. Colorless crystals included in the same aquamarine samples were identified by SEM as albite.