Month: August 2022


Kyanite can be extremely attractive as mineral specimens (Figure 1) and is actively sought after by collectors.

Purely Paraiba

“a gorgeous coffee table book introducing the new gem of gems, the spirited neon blue and green Paraiba Tourmaline.”

Cobalt Spinel

Vivid cobalt spinels are particularly rare and more expensive than the other blue spinels. Recently, a new source outside Mahenge in Tanzania has excited the gem trade.