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Mundarara Mine, Longido District, Arusha Region, Tanzaniai
Regional Level Types
Mundarara MineMine
Longido DistrictDistrict
Arusha RegionRegion
TanzaniaCountry

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Key
Latitude & Longitude (WGS84):
2° 37' 51'' South , 36° 28' 24'' East
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Longido9,403 (2016)27.3km
Namanga12,048 (2016)35.6km
Other/historical names associated with this locality:
Mdarara


Large ruby crystals in green zoisite matrix ('anyolite'), well-known on the mineral market.

The mine is named after a nearby Massai village (Mdarara).

Located ca. 27 km W of Longido, and about 100km NW of Mt Kilimanjaro.

See also the mineralogically similar locality http://www.mindat.org/loc-211915.html.

The amphibole embedded in the green zoisite has been identified as pargasite rather than aluminotschermakite or tschermakite, see http://www.mindat.org/mesg-7-279523.html.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


8 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: http://www.jentsch-mineralien.com/de/reisebericht/5/1/Die_Rubine_in_Zoisit_von_Longido.html
'Albite-Anorthite Series'
Reference: Hintze, J. (2010): Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis 35 (12), 15-19 (in German)
Corundum
Formula: Al2O3
Reference: Hintze, J. (2010): Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis 35 (12), 15-19 (in German)
Corundum var: Ruby
Formula: Al2O3
Reference: Gübelin, E. and Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).; Hintze, J. (2010) Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis, 35(12), 15-19 (in German).
Diaspore
Formula: AlO(OH)
Reference: Hintze, J. (2010): Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis 35 (12), 15-19 (in German)
Graphite
Formula: C
Colour: steel-grey
Reference: Collection of Alejandro Felix Gutierrez
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Collection of Alejandro Felix Gutierrez
Pargasite
Formula: {Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Reference: Cedric Simonet (2000): “Geology of Sapphire and Ruby Deposits -The example of the John Saul Ruby Mine, Mangare area, Southern Kenya” PhD Thesis, University of Nantes
Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Reference: Hintze, J. (2010): Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis 35 (12), 15-19 (in German)
Tschermakite
Formula: ☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Description: Analytical data of the amphibole embedded in the green zoisite falls within the chemical boundaries of pargasite. There are no published analysis indicating that this amphibole may be a tschermakite group mineral.
Reference: Cedric Simonet (2000): “Geology of Sapphire and Ruby Deposits -The example of the John Saul Ruby Mine, Mangare area, Southern Kenya” PhD Thesis, University of Nantes
Zoisite
Formula: Ca2Al3[Si2O7][SiO4]O(OH)
Colour: green
Reference: Gübelin, E. and Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).; Simonet, Cedric (2000) Geology of Sapphire and Ruby Deposits -The example of the John Saul Ruby Mine, Mangare area, Southern Kenya. Ph.D. Thesis, University of Nantes.; Hintze, J. (2010) Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis, 35(12), 15-19 (in German).

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 4 - Oxides and Hydroxides
Corundum4.CB.05Al2O3
var: Ruby4.CB.05Al2O3
Diaspore4.FD.10AlO(OH)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Pargasite9.DE.15{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Tschermakite ?9.DE.10☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
Zoisite9.BG.10Ca2Al3[Si2O7][SiO4]O(OH)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Graphite1.3.6.2C
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Diaspore6.1.1.1AlO(OH)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Zoisite58.2.1b.1Ca2Al3[Si2O7][SiO4]O(OH)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Pargasite66.1.3a.12{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Phlogopite71.2.2b.1KMg3(AlSi3O10)(OH)2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Corundum
var: Ruby
-Al2O3
Tschermakite ?-☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2

List of minerals for each chemical element

HHydrogen
H ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
H Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
H DiasporeAlO(OH)
H PhlogopiteKMg3(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
CCarbon
C GraphiteC
OOxygen
O Corundum (var: Ruby)Al2O3
O ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
O Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
O DiasporeAlO(OH)
O AlbiteNa(AlSi3O8)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O CorundumAl2O3
O Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
NaSodium
Na Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Na AlbiteNa(AlSi3O8)
MgMagnesium
Mg Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
AlAluminium
Al Corundum (var: Ruby)Al2O3
Al ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Al Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Al DiasporeAlO(OH)
Al AlbiteNa(AlSi3O8)
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al CorundumAl2O3
Al Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
SiSilicon
Si ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Si Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Si AlbiteNa(AlSi3O8)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
KPotassium
K PhlogopiteKMg3(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Ca Pargasite{Na}{Ca2}{Mg4Al}(Al2Si6O22)(OH)2
Ca Tschermakite☐(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Game, P.M. (1954) Zoisite-amphibolite with corundum from Tanganyika. Mineralogical Magazine, 30, 458.
Okrusch, M. and Bunch, T.E. (1973) Al-rich pargasite. American Mineralogist, 58, 721-726.
Gübelin, E. and Wolgensinger, M. (1976) Edelstenen. Uitgeverij Artis, Brussel (in Dutch).
Meixner (1977) Lapis, 2(8), 13.
Pardieu, Vincent and Senoble, Jean Baptiste (2005) An update on Ruby and Sapphire mining in South East Asia and East Africa. www.fieldgemology.com [Link dead July 2019]
Simonet, C. (2000) Geology of Sapphire and Ruby Deposits - The example of the John Saul Ruby Mine, Mangare area, Southern Kenya. Ph.D. Thesis, University of Nantes.
Hintze, J. (2010) Safari ndjema - Afrikanisches Tagebuch (II): Rubin in Zoisit - ein Klassiker aus Longido in Tansania. Lapis, 35(12), 15-19 (in German).

External Links


Other Regions, Features and Areas containg this locality

Africa
Somali PlateTectonic Plate

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