New copper-bearing tourmalines from Nigeria
Copper-bearing tourmaline from Nigeria is known in the trade since about two decades (Milisenda 2001, Henricus, 2001; Smith et al., 2001; Zang et al., 2001). The first reported material from Nigeria was rather of aquamarine- to amethyst-like colours, but shortly after it was followed by a limited and sporadic p
Canary tourmaline from Zambia
by Dr. M.S. Krzemnicki, first published in Facette […]
Cu-containing Thin Sheet Inclusion in Cu-bearing Tourmaline from Brazil
Cu-containing Thin Sheet Inclusion in Cu-bearing Tourma […]
Paraiba Research Update: An elemental Analysis of Paraiba Tourmaline from Brazil
At the SSEF, origin determination of Paraiba tourmalines is based on years of experience researching collection samples from SSEF and Prof. Hänni collections, donated and loaned samples from clients, as well as knowledge from scientific literature. However, the mining area and depth of the material have been i
Paraiba Tourmaline Intergrown with Lepidolite Mica
by Dr. M.S. Krzemnicki, first published in Facette 20 ( […]
Multi-Element Correlation Analysis of Cu-bearing Tourmaline using LA-ICP-Time-Of-Flight-MS
Multi-Element Correlation Analysis of Cu-bearing Tourma […]
SSEF Fieldtrip to Paraiba, Brazil (2018)
Presentation given by Alexander Klumb at 2018 Swiss Gemmological Society conference on an SSEF fieldtrip to the Paraiba region of Brazil.
Paraiba tourmaline intergrown with lepidolite mica
Paraiba tourmaline intergrown with lepidolite mica. Pub […]
Vanadium-bearing gem-quality tourmalines from Madagascar
Vanadium-bearing gem-quality tourmalines from Madagasca […]
Golden yellow tourmaline of gem quality from Kenya
Golden yellow tourmaline of gem quality from Kenya. Pub […]