Kyanite (Twinned)
Posted by: macadmin on 05.14.2020 | Filed under:

Kyanite (Twinned)

Specimen # 101348
Mineral: Kyanite (Twinned)
Location: Kyanite (Twinned), Nani, Loliondo, Arusha, Tanzania
Size: 2.4 x 2.3 x 0.8 cm


The kyanites from this find, about 35 km northeast of Loliondo, are very unusual – they are orange due to trace amounts of manganese, and some are twinned. This specimen is an excellent contact twin, on the rare 121 twinning law (the last one is bar-one but I don’t seem to be able to put a bar over it). This specimen is deep orange, with some gemminess in the interior. It is in excellent condition, however as is the case for pretty much all of the specimens from this find, it has some rough spots at the edges – late in their formation, these crystals were naturally etched. This is a super twinned orange kyanite.

Additional information

Dimensions 24 × 23 × 8 cm