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

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Key
Locality type:
Largest Settlements:
PlacePopulation
Namanga12,048 (2016)
Longido9,403 (2016)
Other Languages:
Italian:
Distretto di Longido, regione di Arusha, Tanzania
Spanish:
Longido, Región de Arusha, Tanzania
Cebuano:
Longido District, Arusha Region, Tanzania
Dutch:
Longido, Arusha, Tanzania
Greek:
Περιοχή Λονγκίντο, Περιφέρεια Αρούσα, Τανζανία
Swahili:
Wilaya ya Longido, Mkoa wa Arusha, Tanzania


Ultramafic rocks.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

18 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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)
Anorthite
Formula: Ca(Al2Si2O8)
Reference: Jochen Hintze (2010) Lapis, 35, #12, 15-19.
Anorthite var. Bytownite
Formula: (Ca,Na)[Al(Al,Si)Si2O8]
Reference: Jochen Hintze (2010) Lapis, 35, #12, 15-19.
Calcite
Formula: CaCO3
Reference: Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
Chromite
Formula: Fe2+Cr3+2O4
Reference: Frank K. Mazdab collection; sample FKM-290; https://www.rockptx.com/fkm-276-to-fkm-300/#FKM-290
Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Reference: Frank K. Mazdab collection; sample FKM-290; https://www.rockptx.com/fkm-276-to-fkm-300/#FKM-290
Corundum
Formula: Al2O3
Reference: Keulen, Nynke et al (2014) Determination of the origin of corundum (ruby and sapphire) from Tanzania by geochemical fingerprinting. 31st Nordic Geological Meeting, Lund Sweden.
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
Hercynite
Formula: Fe2+Al2O4
Reference: Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
Hercynite var. Picotite
Formula: (Fe,Mg)(Al,Cr)2O4
Reference: Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
Magnesite
Formula: MgCO3
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)
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Collection of Alejandro Felix Gutierrez
Omphacite
Formula: (NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Reference: Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
Pargasite
Formula: NaCa2(Mg4Al)(Si6Al2)O22(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: Jochen Hintze (2010) Lapis, 35, #12, 15-19.
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: Yang, Xiao-wen; Zhang, Liang-ju; Jia, Zong-yong (2012): Mineral composition characters and prospect of Longido red corundum deposit in Tanzania. Guilin Ligong Daxue Xuebao 32, 173-178 (in Chinese).
Spinel
Formula: MgAl2O4
Reference: Frank K. Mazdab collection; sample FKM-290; https://www.rockptx.com/fkm-276-to-fkm-300/#FKM-290
Titanite
Formula: CaTi(SiO4)O
Reference: Frank K. Mazdab collection; sample FKM-290; https://www.rockptx.com/fkm-276-to-fkm-300/#FKM-290
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).

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Corundum4.CB.05Al2O3
var. Ruby4.CB.05Al2O3
Diaspore4.FD.10AlO(OH)
Hercynite4.BB.05Fe2+Al2O4
var. Picotite4.BB.05(Fe,Mg)(Al,Cr)2O4
Spinel4.BB.05MgAl2O4
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Magnesite5.AB.05MgCO3
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
Anorthite9.FA.35Ca(Al2Si2O8)
var. Bytownite9.FA.35(Ca,Na)[Al(Al,Si)Si2O8]
Clinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Omphacite9.DA.20(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Pargasite9.DE.15NaCa2(Mg4Al)(Si6Al2)O22(OH)2
Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
Pyrope9.AD.25Mg3Al2(SiO4)3
Titanite9.AG.15CaTi(SiO4)O
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 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Hercynite7.2.1.3Fe2+Al2O4
Spinel7.2.1.1MgAl2O4
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Magnesite14.1.1.2MgCO3
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Pyrope51.4.3a.1Mg3Al2(SiO4)3
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
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 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Omphacite65.1.3b.1(NaaCabFe2+cMgd)(AleFe3+fFe2+gMgh)Si2O6
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Pargasite66.1.3a.12NaCa2(Mg4Al)(Si6Al2)O22(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
Sheets of 6-membered rings interlayered 1:1, 2:1, and octahedra
Clinochlore71.4.1.4Mg5Al(AlSi3O10)(OH)8
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'-
Anorthite-Ca(Al2Si2O8)
var. Bytownite-(Ca,Na)[Al(Al,Si)Si2O8]
Corundum
var. Ruby
-Al2O3
Hercynite
var. Picotite
-(Fe,Mg)(Al,Cr)2O4
Tschermakite ?-◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2

List of minerals for each chemical element

HHydrogen
H ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
H PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
H DiasporeAlO(OH)
H PhlogopiteKMg3(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H ClinochloreMg5Al(AlSi3O10)(OH)8
H Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
CCarbon
C MagnesiteMgCO3
C CalciteCaCO3
C GraphiteC
OOxygen
O Corundum var. RubyAl2O3
O ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
O PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
O DiasporeAlO(OH)
O AlbiteNa(AlSi3O8)
O Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
O AnorthiteCa(Al2Si2O8)
O PhlogopiteKMg3(AlSi3O10)(OH)2
O MagnesiteMgCO3
O CorundumAl2O3
O Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
O PyropeMg3Al2(SiO4)3
O Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
O CalciteCaCO3
O MuscoviteKAl2(AlSi3O10)(OH)2
O HercyniteFe2+Al2O4
O ClinochloreMg5Al(AlSi3O10)(OH)8
O SpinelMgAl2O4
O ChromiteFe2+Cr23+O4
O TitaniteCaTi(SiO4)O
O Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
NaSodium
Na PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Na AlbiteNa(AlSi3O8)
Na Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Na Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
MgMagnesium
Mg PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Mg PhlogopiteKMg3(AlSi3O10)(OH)2
Mg MagnesiteMgCO3
Mg Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Mg PyropeMg3Al2(SiO4)3
Mg Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Mg ClinochloreMg5Al(AlSi3O10)(OH)8
Mg SpinelMgAl2O4
Mg Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
AlAluminium
Al Corundum var. RubyAl2O3
Al ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Al PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Al DiasporeAlO(OH)
Al AlbiteNa(AlSi3O8)
Al Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Al AnorthiteCa(Al2Si2O8)
Al PhlogopiteKMg3(AlSi3O10)(OH)2
Al CorundumAl2O3
Al Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Al PyropeMg3Al2(SiO4)3
Al Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al HercyniteFe2+Al2O4
Al ClinochloreMg5Al(AlSi3O10)(OH)8
Al SpinelMgAl2O4
Al Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
SiSilicon
Si ZoisiteCa2Al3[Si2O7][SiO4]O(OH)
Si PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Si AlbiteNa(AlSi3O8)
Si Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Si AnorthiteCa(Al2Si2O8)
Si PhlogopiteKMg3(AlSi3O10)(OH)2
Si Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Si PyropeMg3Al2(SiO4)3
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si ClinochloreMg5Al(AlSi3O10)(OH)8
Si TitaniteCaTi(SiO4)O
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 PargasiteNaCa2(Mg4Al)(Si6Al2)O22(OH)2
Ca Anorthite var. Bytownite(Ca,Na)[Al(Al,Si)Si2O8]
Ca AnorthiteCa(Al2Si2O8)
Ca Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Ca CalciteCaCO3
Ca TitaniteCaTi(SiO4)O
Ca Tschermakite◻(Ca2)(Mg3Al2)(Al2Si6O22)(OH)2
TiTitanium
Ti TitaniteCaTi(SiO4)O
CrChromium
Cr Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Cr ChromiteFe2+Cr23+O4
FeIron
Fe Omphacite(NaaCabFec2+Mgd)(AleFef3+Feg2+Mgh)Si2O6
Fe Hercynite var. Picotite(Fe,Mg)(Al,Cr)2O4
Fe HercyniteFe2+Al2O4
Fe ChromiteFe2+Cr23+O4

Fossils

Other Databases

Wikipedia:https://en.wikipedia.org/wiki/Longido_District
Wikidata ID:Q6673918
GeoNames ID:8693317

Localities in this Region

Other Regions, Features and Areas that Intersect

Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
 
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