Semi-Precious Gemstones
Topaz
Topaz from Tunduru and the Umba Valley is available in blue, yellow, pink and colorless varieties. Durable at 8 Mohs and supplied faceted or as rough, heat-treated for color.
Specifications
| Hardness | 8 (Mohs) |
|---|---|
| Origins | Tunduru, Umba Valley |
| Colors | Blue, yellow, pink (often heat-treated), colorless |
| Treatments | Heat treatment common |
| Load Port | Dar es Salaam (JNIA) |
| Target Markets | USA, Europe, India, UAE |
Harvest Seasonality
Highlighted months indicate peak harvest availability. The current month is outlined.
J
JanF
FebM
MarA
AprM
MayJ
JunJ
JulA
AugS
SepO
OctN
NovD
Dec