Exceptional quartz varieties including amethyst, citrine, smoky quartz, rose quartz, and specialty crystalline forms from Tanzania's premier deposits.
Premium crystalline varieties with exceptional clarity
28.5 ct • Unheated • VVS
Deep Purple Color
45.2 ct • Heat Treated • VS
Bright Golden
82.1 ct • Unheated • IF
Perfect Clarity
156.8 ct • Unheated • VS
Soft Pink Tone
124.3 ct • Unheated • IF
Colorless Clarity
18.7 ct • Heat Treated • VVS
Prasiolite Variety
| Variety | Color Range | Clarity | Size Range | Grade Notes | Treatment | Origin |
|---|---|---|---|---|---|---|
| Amethyst | Light to deep purple | VVS to VS | 5-50 ct | Excellent color zoning | Unheated | Mbeya region |
| Citrine | Pale to golden yellow | VVS to VS | 10-100 ct | Natural & heated varieties | Heat treated/Natural | Dodoma district |
| Smoky Quartz | Light to deep brown | IF to VVS | 20-200 ct | Exceptional transparency | Unheated | Morogoro mountains |
| Rose Quartz | Pink to deep rose | VS to SI | 20-300 ct | Star effects possible | Unheated | Manyara region |
| Rock Crystal | Colorless | IF to VVS | 10-500 ct | Perfect clarity | Unheated | Multiple deposits |
| Prasiolite | Light to medium green | VVS to VS | 8-60 ct | Heat-treated amethyst | Heat treated | Mbeya (treated) |
Premium quartz specimens ready
Exceptional clarity and large sizes available for immediate international export.