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Tanzanite — specimen 0383, photo © NMNHS
Tanzanite — specimen 0383, photo © NMNHS

Tanzanitespecimen 0383


East Africa
Tanzania, Manyara, Lelatema Mountains, Merelani Hills, 3.58333°S 37.00833°E
Tanzanite — specimen 0383, locality map

Weight: 0.54 ct; size: 5.55 | 4.76 | 3.29 mm; shape: oval; colour: medium light blue; strong; clarity: eye clean; cut: excellent; treatment: heating.

Very clean specimen; design ‘Ovalimixtum ST’, excellent cut by Tan Pen.

Other specimens
Tanzanite — specimen 0235Tanzanite — specimen 0363Tanzanite — specimen 0220Tanzanite — specimen 0281Tanzanite — specimen 0460

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.