Smoky quartz — specimen 0350, photo © NMNHS
Smoky quartz — specimen 0350
Weight: 1.27 ct; size: 7.05 | 7.02 | 4.94 mm; shape: octagon; colour: dark reddish orange; clarity: eye clean; cut: excellent; treatment: none.
Very clean specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.
More information from ‘Classification’
Smoky-grey, brown to black quartz coloured by Al-based and irradiation-induced colour centres.