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Minerals and Gem stones from Tanzania

Collection of Tanzanian Minerals. Courtesy of Mawingu Gems.
Photos © by Hubert Heldner

Tanzanite specimen Merelani, with Prehnite and Diopside.

Tanzanite Merelani

Tanzanite Merelani

Tanzanite Merelani

Tanzanite Merelani

bi-color Tanzanite Merelani

Spessartite Garnet on Mica Sangolungulu

Spessartite Garnet on Mica Sangolungulu

Spessartite Garnet Sangolungulu

Spessartite Garnet on Mica Sangolungulu

Spessartite Garnet on Matrix Sangolungulu

Spessartite Garnet on Matrix Sangolungulu

Spinel Morogoro

Spinel octahedron Mahenge

Spinel on Matrix Mahenge

Spinel Mahenge

Spinel Mahenge

Spinel Mahenge

Danburite Morogoro

Danburite Morogoro

Danburite Morogoro

Magnesio-Axinite Merelani

Magnesio-Axinite Merelani

Magnesio-Axinite Merelani

Magnesio-Axinite Merelani

Magnesio-Axinite Merelani

Phrenite Merelani

Phrenite Merelani

Phrenite Merelani

Ruby Winza

Ruby Winza

Ruby Winza

Ruby & Sapphire

Tremolite Merelani

Tsavorite on Matrix Merelani

Tsavorite on Matrix Merelani

Kyanite

Kyanite

Kyanite twin

Tsavorite on Matrix Merelani

Tsavorite on Matrix Merelani

Enstatite

Tourmalin Morogoro

Tourmalin Morogoro

Kyanite

Kyanite

Sphene

Apatite

Zircon

Zircon

Diopside Merelani

Diopside on Matrix Merelani

Diopside on Matrix Merelani

Diopside Merelani

Diopside Merelani

Diopside Merelani

Aquamarine Songea

Aquamarine Songea

Calcite on Matrix Merelani

Scapolite Dodoma

Scapolite Dodoma

Scapolite Morogoro

Scapolite Dodoma

Scapolite Dodoma

Quarz with Rutile Morogoro

Alexandrite Manyara

Alexandrite Manyara

Alexandrite Manyara

Ruby in Zoisite Longido

Ruby in Zoisite Longido

Tourmaline with usambara effect

Tourmaline Usambara

 

 

MineralOrigin
Alexandrite, Chrysoberyl groupManyara lake
ApatiteMerelani
ApatiteMorogoro
Beryl, EmeraldManyara lake
Chrome TourmalineLandanai
ChrysoberylManyara lake
ChrysoberylTunduru
Chrysopras and ChrysopalHaney hills
Disthen, KyaniteMerelani
Danburite, yellowMorogoro
Enstatite yello brown
GarnetTanga
GarnetUmba
Garnet, color changeTanga
Garnet, RhodoliteTanga
Garnet, SpessartiteTunduru
Garnet, Chrome GrossularKolomo
Garnet, GrossularLatatema hills
Garnet, RhodoliteMerelani hills
Garnet, TsavoriteLualeny and Mgama
Garnet, Vanadium GrossularKolomo, Lualenyi, Mgama
KornerupinMerelani hills
RubyWinza north of Iringa.
RubyMerelani
Ruby, alluvialTsavo national park south of Mgama
Sapphire, Corundum group all colorsUmba
Sapphire, Corundum group all colorsSongea
Scapolite yellowMerelani hills
Scapolite, lila and blue Morogoro
Scapolite cat's eyeDodoma and Singida
Scapolite with star effectDodoma and Singida
Scapolite yellow, colorless, lilaDodoma and Singida
SpinelMorogoro
Tanzanite, Zoisite groupMerelani hills
Tourmaline Dravit with VanadiumGerevi hills north of Umba valley
Vanadium Tourmaline
ZoisitMerelani
Zoisit with rubyLongido

Scientific publications
Garnet, corundum and other gem minerals from Umba, Tanzania.P.C. Zwaan February 2014

Some of the gemstones we found and cut in Tanzania.

 


Red sunstone

rough

and

cut.

 

 


Blue Iolith with

sunstone sparks

rough and

cut.

 

 


Silvery sunstone

with directional color

both cabochons are cut

out of the same rough piece.



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Copyright on all photos by Hubert Heldner