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- Availability
- Sold
- Locality
- Merelani Hills, Umba Valley, Lelatema Mts., Arusha, Tanzania
- Formula
- Ca2Al3(Si2O7)(SiO4)O(OH)
- Size
- 0.7 x 0.7 x 0.5 cm - Thumbnail
- Special Info
- Gem Quality
This is a set of two crystals in parallel growth both perfect terminations. It shows excellent color and exhibits nice dichroism from blue to purple.