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Sanda carriere (Sanda quarry; Sanda Mine), Mindouli, Mindouli District, Pool Department, Republic of Congo (Brazzaville)i
Regional Level Types
Sanda carriere (Sanda quarry; Sanda Mine)- not defined -
Mindouli- not defined -
Mindouli DistrictDistrict
Pool DepartmentDepartment
Republic of Congo (Brazzaville)Country

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 4° South , 14° East (est.)
Margin of Error:~66km
Köppen climate type:Aw : Tropical savanna, wet


(This locality is not in the former Zaire, but rather, the "other" Congo.)

"Mindouli is a regional center on Route Nationale 1 (RN1) and the Pointe Noire-Brazzaville railway.
The copper occurrences crop out over a distance of about 3km along a limestone escarpment behind the town. They were mined by the French between 1948 and 1960.
Minerals I have personally verified that came from there, i.e. I collected them on dumps and exposed faces, dioptase, malachite, azurite, chrysocolla, libethenite, cuprite, cerussite, wulfenite, native silver, native copper, chalcocite, chalcopyrite, pyrite hematite, goethite. The copper mineralization was mined in a number of open cuts and via several shafts and declines, now collapsed. The largest open pit was called the Sanda carriere (quarry) according to my sources. A Chinese company currently has the exploration rights over the Mindouli and M'passa occurrences. They have driven several adits into the mineralization along the line of old workings and collected several thousand tonnes of metallurgical samples. Mostly massive chalcocite, malachite, cuprite mineralization. I saw practically no dioptase on dumps from these workings." (Demetrius Pohl, http://www.mindat.org/mesg-6-234115.html )

Regions containing this locality

African PlateTectonic Plate
Central AfricaRegion

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


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

Detailed Mineral List:

Cerussite
Formula: PbCO3
Habit: twinned
Reference: G. W. Robinson, V. King (1993) Whats New in Minerals. Mineralogical Record 24:381-395
Dioptase
Formula: CuSiO3 · H2O
Reference: [MinRec 24:394]
Plancheite (TL)
Formula: Cu8(Si8O22)(OH)4 · H2O
Type Locality:
Reference: American Mineralogist (1977), 62, pp. 491-502
Wulfenite
Formula: Pb(MoO4)
Reference: [MinRec 24:394]

List of minerals arranged by Strunz 10th Edition classification

Group 5 - Nitrates and Carbonates
Cerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Dioptase9.CJ.30CuSiO3 · H2O
Plancheite (TL)9.DB.35Cu8(Si8O22)(OH)4 · H2O

List of minerals arranged by Dana 8th Edition classification

Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Cerussite14.1.3.4PbCO3
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Dioptase61.1.3.1CuSiO3 · H2O
Group 66 - INOSILICATES Double-Width,Unbranched Chains,(W=2)
Amphiboles - Ca subgroup
Plancheite (TL)66.2.1.1Cu8(Si8O22)(OH)4 · H2O

List of minerals for each chemical element

HHydrogen
H PlancheiteCu8(Si8O22)(OH)4 · H2O
H DioptaseCuSiO3 · H2O
CCarbon
C CerussitePbCO3
OOxygen
O PlancheiteCu8(Si8O22)(OH)4 · H2O
O CerussitePbCO3
O DioptaseCuSiO3 · H2O
O WulfenitePb(MoO4)
SiSilicon
Si PlancheiteCu8(Si8O22)(OH)4 · H2O
Si DioptaseCuSiO3 · H2O
CuCopper
Cu PlancheiteCu8(Si8O22)(OH)4 · H2O
Cu DioptaseCuSiO3 · H2O
MoMolybdenum
Mo WulfenitePb(MoO4)
PbLead
Pb CerussitePbCO3
Pb WulfenitePb(MoO4)

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