Mines & minerals

Ruby-Zoisite jewelry class
in collaboration with massai ladies. At the mines in Mundarara - Longido. Jewels are made durig 3 days without welding equipment. With simple tools, but with sophisticated techniques.

Cutting and carving Jade
A workshop organized in Switzerland. With a visit of the jade deposit in the Swiss mountains, followed by an introduction to cabochon cutting and carving of jade.

Orbe river, Switzerland
Gold washing in Orbe river. We found some gold, beautiful swiss jade and even a few dark sapphires.

Umba Valley, Tanzania
Guiding a group of students to the alluvial deposit of Umba where we found: Sapphire, Ruby, Garnet, Turmalin, Spinell and Zircon. In collaboration with the local miners.

Morogoro, Tanzania
Visit of different mines, where we found: Spinel, Ruby, Sunstone, Scapolite, Danburite, Tremolite and Turmalin. In collaboration with the local miners.

Idar-Oberstein, Germany
Visit of a historical gem cutting workshop. This workshop was installed before the invention of electricity and still operates with direct water power. The water wheel even powers a small generator for the light.

Swiss Alps
Visit of a rock crystal deposit, together with crystal specimen collectors. Here where we found: Adular and Quartz with chlorite inclusions.
See also : Cavradi gorge

Tucson Gem and Mineral Show USA
Representing Tanzania during the biggest gem and mineral show in the world.

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	Ruby-Zoisite jewelry class in collaboration with massai ladies. At the mines in Mundarara - Longido. Jewels are made durig 3 days without welding equipment. With simple tools, but with sophisticated techniques.
	Cutting and carving Jade A workshop organized in Switzerland. With a visit of the jade deposit in the Swiss mountains, followed by an introduction to cabochon cutting and carving of jade.
	Orbe river, Switzerland Gold washing in Orbe river. We found some gold, beautiful swiss jade and even a few dark sapphires.
	Umba Valley, Tanzania Guiding a group of students to the alluvial deposit of Umba where we found: Sapphire, Ruby, Garnet, Turmalin, Spinell and Zircon. In collaboration with the local miners.
	Morogoro, Tanzania Visit of different mines, where we found: Spinel, Ruby, Sunstone, Scapolite, Danburite, Tremolite and Turmalin. In collaboration with the local miners.
	Idar-Oberstein, Germany Visit of a historical gem cutting workshop. This workshop was installed before the invention of electricity and still operates with direct water power. The water wheel even powers a small generator for the light.
	Swiss Alps Visit of a rock crystal deposit, together with crystal specimen collectors. Here where we found: Adular and Quartz with chlorite inclusions. See also : Cavradi gorge
	Tucson Gem and Mineral Show USA Representing Tanzania during the biggest gem and mineral show in the world.