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Tanzanite — specimen 0460, photo © NMNHS
Tanzanite — specimen 0460, photo © NMNHS

Tanzanitespecimen 0460


East Africa
Tanzania, Manyara, Lelatema Mountains, Merelani Hills, 3.58333°S 37.00833°E
Tanzanite — specimen 0460, locality map

Weight: 1.06 ct; size: 7.47 | 4.34 | 3.25 mm; shape: octagon; colour: medium blue; very slightly greyish; clarity: eye clean; cut: fair; treatment: heating.

Very clean specimen; radiant style cut.

Other specimens
Tanzanite — specimen 0235Tanzanite — specimen 0363Tanzanite — specimen 0383Tanzanite — specimen 0220Tanzanite — specimen 0281

More information from ‘Classification’

A variety of zoisite with a blue to blue-violet colour. Nearly all tanzanites on the market have been heat-treated to produce this colour. First reported from the Merelani, Lelatema Mts, Manyara, Tanzania.