I’ve added some excellent yellow stilbites on the website in the new Mali Update (click here).
Beautiful yellow stilbite balls from Mali made their debut at Ste. Marie 2014. Although there has only been a small trickle of fine specimens since then, the deposit at Diamonkara has now once again produced a number of very fine pieces. As in 2014, moderate-to-significant damage was almost ubiquitous, and high-quality specimens like the ones in this lot are very uncommon. As a side note, although there has been a push to sell these as specimens of stellerite, none of the analytical work done to date has confirmed any stellerite identification, to my knowledge (and I am aware some analytical work has been done).
As for the specimens themselves, the good Diamonkara pieces are absolutely some of the nicest and most distinctive stilbites I’ve ever seen from anywhere, with beautiful colour and form. They are perhaps not yet appreciated for what they are – these are striking, colourful display specimens of a mineral that is often pale and drab.

Stilbite with prehnite and epidote, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 6 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 6.2 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 6.8 cm

Stilbite on epidote, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali
Field of view – 5 cm

Stilbite on pargasite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 4.6 cm

Stilbite on prehnite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali
Field of view 4.5 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 3.8 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 4 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 4.1 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 3.1 cm

Stilbite (deep colour) Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 3.1 cm

Stilbite, Diamonkara, Bendougou, Arrondissement Diako, Kayes Region, Mali – 3.1 cm

Prehnite, Arrondissement Diako, Kayes Region, Mali – field of view 5.5 cm