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Chadi
Regional Level Types
ChadCountry

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Key
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Geological map of Chad

Chad
Name in French:Tchad
Name in German:Tschad
Name in Italian:Ciad
Name in Russian:Чад
Name in Simplified Chinese:乍得
Name in Spanish:Chad
Name in Afrikaans:Tsjad
Name in Albanian:Çadi
Name in Arabic:تشاد
Name in Belarusian:Чад
Name in Bulgarian:Чад
Name in Catalan:Txad
Name in Czech:Čad
Name in Danish:Tchad
Name in Dutch:Tsjaad
Name in Estonian:Tšaad
Name in Farsi/Persian:چاد
Name in Finnish:Tšad
Name in Galician:Chad
Name in Greek:Τσαντ
Name in Hebrew:צ’אד
Name in Hindi:चाड
Name in Hungarian:Csád
Name in Icelandic:Tsjad
Name in Indonesian:Chad
Name in Irish Gaelic:Sead
Name in Japanese:チャド
Name in Korean:차드
Name in Latvian:Čada
Name in Lithuanian:Čadas
Name in Macedonian:Чад
Name in Norwegian:Tsjad
Name in Polish:Chad
Name in Portuguese:Chade
Name in Romanian:Ciad
Name in Serbian:Чад
Name in Slovak:Čad
Name in Slovenian:Čad
Name in Swahili:Chad
Name in Swedish:Tchad
Name in Tagalog:Tsad
Name in Thai:ชาด
Name in Turkish:Çad
Name in Ukrainian:Чад
Name in Vietnamese:Tchad
Name in Welsh:Tchad
Area:1,284,000 km2
Neighbouring regions:
Locality type:Country
Largest Settlements:
PlacePopulation
N'Djamena721,081 (2017)
Moundou135,167 (2012)
Sarh102,528 (2017)
Abéché74,188 (2017)
Kelo42,533 (2012)
Koumra36,263 (2012)


Note: Since 2002, Chad has been divided into 18 regions, which are subdivided into 52 departments and further divided into 348 sub-prefectures. Implementation of the new plan has been slow on the ground, however. The regions approximately correspond with 14 prefectures which existed up to 1999.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

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

27 valid minerals. 1 (TL) - type locality of valid minerals.

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!

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

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Actinolite
Formula: ☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Ankerite
Formula: Ca(Fe2+,Mg)(CO3)2
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Arsenopyrite
Formula: FeAsS
Beryl
Formula: Be3Al2(Si6O18)
Reference: Mining Journal Chad Supplement September 1995
Calcite
Formula: CaCO3
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Cassiterite
Formula: SnO2
Reference: Mining Journal Chad Supplement September 1995
Chalcopyrite
Formula: CuFeS2
'Chlorite Group'
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Mining Journal Chad Supplement September 1995
'Eguëite'
Formula: CaFe14(PO4)10(OH)14·21H2O
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 955.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
'Feldspar Group'
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Gaylussite
Formula: Na2Ca(CO3)2 · 5H2O
Reference: Bull.Soc.fr.Min.Crist.(1972) 95, 372-382
Gold
Formula: Au
Localities: Reported from at least 9 localities in this region.
Hessite
Formula: Ag2Te
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013): On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences 84, 36-46.
Ilmenite
Formula: Fe2+TiO3
Reference: Mining Journal Chad Supplement September 1995
Kanemite (TL)
Formula: HNaSi2O5 · 3H2O
Type Locality:
Reference: Bull.Soc.fr.Min.Crist.(1972) 95, 372-382
Kawazulite
Formula: Bi2Te2Se
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013): On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences 84, 36-46.
Magadiite
Formula: Na2Si14O29 · 11H2O
Reference: Clays and Clay Minerals. Vol. 35, No. 4, 318-320, 1987.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Mining Journal Chad Supplement September 1995
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Muscovite var: Sericite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Pyrite
Formula: FeS2
Pyrrhotite
Formula: Fe7S8
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013): On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences 84, 36-46.
Quartz
Formula: SiO2
Rutile
Formula: TiO2
Reference: Mining Journal Chad Supplement September 1995
Siegenite
Formula: CoNi2S4
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013): On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences 84, 36-46.
Sphalerite
Formula: ZnS
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013): On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences 84, 36-46.
Talc
Formula: Mg3Si4O10(OH)2
'Thénardite'
Formula: Na2SO4
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 955.
Tremolite
Formula: ☐{Ca2}{Mg5}(Si8O22)(OH)2
Reference: Rigobert, T., Claude, D. J., Marambaye, D., & Yannick, B. (2013). On the occurrence of gold mineralization in the Pala Neoproterozoic formations, South-Western Chad. Journal of African Earth Sciences. Volume 84, August 2013, Pages 36–46
Trona
Formula: Na3H(CO3)2 · 2H2O
Reference: Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 955.
Uraninite
Formula: UO2
'Wolframite'
Formula: (Fe2+)WO4 to (Mn2+)WO4
Reference: Mining Journal Chad Supplement September 1995

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Arsenopyrite2.EB.20FeAsS
Chalcopyrite2.CB.10aCuFeS2
Hessite2.BA.60Ag2Te
Kawazulite2.DC.05Bi2Te2Se
Pyrite2.EB.05aFeS2
Pyrrhotite2.CC.10Fe7S8
Siegenite2.DA.05CoNi2S4
Sphalerite2.CB.05aZnS
Group 4 - Oxides and Hydroxides
Cassiterite4.DB.05SnO2
Ilmenite4.CB.05Fe2+TiO3
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Ankerite5.AB.10Ca(Fe2+,Mg)(CO3)2
Calcite5.AB.05CaCO3
Gaylussite5.CB.35Na2Ca(CO3)2 · 5H2O
Malachite5.BA.10Cu2(CO3)(OH)2
Trona5.CB.15Na3H(CO3)2 · 2H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Thénardite'7.AC.25Na2SO4
Group 9 - Silicates
Actinolite9.DE.10☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Kanemite (TL)9.EF.25HNaSi2O5 · 3H2O
Magadiite9.EA.20Na2Si14O29 · 11H2O
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
var: Sericite9.EC.15KAl2(AlSi3O10)(OH)2
Talc9.EC.05Mg3Si4O10(OH)2
Tremolite9.DE.10☐{Ca2}{Mg5}(Si8O22)(OH)2
Unclassified Minerals, Rocks, etc.
'Chlorite Group'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Eguëite'-CaFe14(PO4)10(OH)14·21H2O
'Feldspar Group'-
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Hessite2.4.2.1Ag2Te
AmXp, with m:p = 1:1
Pyrrhotite2.8.10.1Fe7S8
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 3:4
Siegenite2.10.1.6CoNi2S4
AmBnXp, with (m+n):p = 2:3
Kawazulite2.11.7.5Bi2Te2Se
AmBnXp, with (m+n):p = 1:2
Arsenopyrite2.12.4.1FeAsS
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Cassiterite4.4.1.5SnO2
Rutile4.4.1.1TiO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 13 - ACID CARBONATES
Miscellaneous
Trona13.1.4.1Na3H(CO3)2 · 2H2O
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
AB(XO3)2
Ankerite14.2.1.2Ca(Fe2+,Mg)(CO3)2
Group 15 - HYDRATED NORMAL CARBONATES
AmBn(XO3)p·xH2O, with (m+n):p > 1:1
Gaylussite15.2.2.1Na2Ca(CO3)2 · 5H2O
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
A2XO4
'Thénardite'28.2.3.1Na2SO4
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)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Mg-Fe-Mn-Li subgroup
Tremolite66.1.3a.1☐{Ca2}{Mg5}(Si8O22)(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
Talc71.2.1.3Mg3Si4O10(OH)2
Group 73 - PHYLLOSILICATES Condensed Tetrahedral Sheets
Condensed Tetrahedral Sheets with double layers
Kanemite (TL)73.1.5.1HNaSi2O5 · 3H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 78 - Unclassified Silicates
Magadiite78.7.12.1Na2Si14O29 · 11H2O
Unclassified Minerals, Mixtures, etc.
Actinolite-☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
'Chlorite Group'-
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Eguëite'-CaFe14(PO4)10(OH)14·21H2O
'Feldspar Group'-
Muscovite
var: Sericite
-KAl2(AlSi3O10)(OH)2
'Wolframite'-(Fe2+)WO4 to (Mn2+)WO4

List of minerals for each chemical element

HHydrogen
H KanemiteHNaSi2O5 · 3H2O
H MagadiiteNa2Si14O29 · 11H2O
H TronaNa3H(CO3)2 · 2H2O
H EguëiteCaFe14(PO4)10(OH)14·21H2O
H GaylussiteNa2Ca(CO3)2 · 5H2O
H MalachiteCu2(CO3)(OH)2
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
H Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
H Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
H TalcMg3Si4O10(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BeBeryllium
Be BerylBe3Al2(Si6O18)
CCarbon
C TronaNa3H(CO3)2 · 2H2O
C GaylussiteNa2Ca(CO3)2 · 5H2O
C MalachiteCu2(CO3)(OH)2
C CalciteCaCO3
C AnkeriteCa(Fe2+,Mg)(CO3)2
OOxygen
O KanemiteHNaSi2O5 · 3H2O
O Wolframite(Fe2+)WO4 to (Mn2+)WO4
O UraniniteUO2
O IlmeniteFe2+TiO3
O RutileTiO2
O MagadiiteNa2Si14O29 · 11H2O
O ThénarditeNa2SO4
O TronaNa3H(CO3)2 · 2H2O
O EguëiteCaFe14(PO4)10(OH)14·21H2O
O GaylussiteNa2Ca(CO3)2 · 5H2O
O QuartzSiO2
O CassiteriteSnO2
O BerylBe3Al2(Si6O18)
O MalachiteCu2(CO3)(OH)2
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
O Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
O Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
O CalciteCaCO3
O AnkeriteCa(Fe2+,Mg)(CO3)2
O TalcMg3Si4O10(OH)2
O MuscoviteKAl2(AlSi3O10)(OH)2
NaSodium
Na KanemiteHNaSi2O5 · 3H2O
Na MagadiiteNa2Si14O29 · 11H2O
Na ThénarditeNa2SO4
Na TronaNa3H(CO3)2 · 2H2O
Na GaylussiteNa2Ca(CO3)2 · 5H2O
MgMagnesium
Mg Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Mg Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Mg AnkeriteCa(Fe2+,Mg)(CO3)2
Mg TalcMg3Si4O10(OH)2
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si KanemiteHNaSi2O5 · 3H2O
Si MagadiiteNa2Si14O29 · 11H2O
Si QuartzSiO2
Si BerylBe3Al2(Si6O18)
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Si Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Si Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
Si TalcMg3Si4O10(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
PPhosphorus
P EguëiteCaFe14(PO4)10(OH)14·21H2O
SSulfur
S ThénarditeNa2SO4
S PyriteFeS2
S ArsenopyriteFeAsS
S ChalcopyriteCuFeS2
S PyrrhotiteFe7S8
S SphaleriteZnS
S SiegeniteCoNi2S4
KPotassium
K Muscovite (var: Sericite)KAl2(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca EguëiteCaFe14(PO4)10(OH)14·21H2O
Ca GaylussiteNa2Ca(CO3)2 · 5H2O
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Ca Tremolite☐{Ca2}{Mg5}(Si8O22)(OH)2
Ca CalciteCaCO3
Ca AnkeriteCa(Fe2+,Mg)(CO3)2
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
MnManganese
Mn Wolframite(Fe2+)WO4 to (Mn2+)WO4
FeIron
Fe Wolframite(Fe2+)WO4 to (Mn2+)WO4
Fe IlmeniteFe2+TiO3
Fe EguëiteCaFe14(PO4)10(OH)14·21H2O
Fe PyriteFeS2
Fe ArsenopyriteFeAsS
Fe ChalcopyriteCuFeS2
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Actinolite☐{Ca2}{Mg4.5-2.5Fe0.5-2.5}(Si8O22)(OH)2
Fe PyrrhotiteFe7S8
Fe AnkeriteCa(Fe2+,Mg)(CO3)2
CoCobalt
Co SiegeniteCoNi2S4
NiNickel
Ni SiegeniteCoNi2S4
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
AsArsenic
As ArsenopyriteFeAsS
SeSelenium
Se KawazuliteBi2Te2Se
AgSilver
Ag HessiteAg2Te
SnTin
Sn CassiteriteSnO2
TeTellurium
Te HessiteAg2Te
Te KawazuliteBi2Te2Se
WTungsten
W Wolframite(Fe2+)WO4 to (Mn2+)WO4
AuGold
Au GoldAu
BiBismuth
Bi KawazuliteBi2Te2Se
UUranium
U UraniniteUO2

Localities in this Region
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