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Kasai river alluvials, Kasaï, DR Congoi
Regional Level Types
Kasai river alluvialsAlluvials
KasaïProvince
DR CongoCountry

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View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
View of the Kasai River diamond mining area, ca. 1910.

Kasai river alluvials, Kasaï, DR Congo
Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude: 5° South , 21° East (est.)
Margin of Error:~343km
Locality type:Alluvials
Other/historical names associated with this locality:Zaïre


The "Kasai river" diamond placers are mostly in the northward-flowing tributaries the Tshikapa, Longashimo (Longatchimo), and Tshipumbu rivers.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


19 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Andradite var: Melanite
Formula: Ca3Fe3+2(SiO4)3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Beryl
Formula: Be3Al2(Si6O18)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Chromite
Formula: Fe2+Cr3+2O4
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Chrysoberyl
Formula: BeAl2O4
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Chrysoberyl var: Cymophane
Formula: BeAl2O4
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Corundum
Formula: Al2O3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Corundum var: Sapphire
Formula: Al2O3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Diamond
Formula: C
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Hematite
Formula: Fe2O3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Hematite var: Specularite
Formula: Fe2O3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Ilmenite
Formula: Fe2+TiO3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Kyanite
Formula: Al2(SiO4)O
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
'Mica Group'
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Opal
Formula: SiO2 · nH2O
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Orthoclase
Formula: K(AlSi3O8)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Pyrite
Formula: FeS2
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Pyrope
Formula: Mg3Al2(SiO4)3
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Quartz
Formula: SiO2
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Quartz var: Amethyst
Formula: SiO2
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Quartz var: Chalcedony
Formula: SiO2
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Rutile
Formula: TiO2
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Staurolite
Formula: Fe2+2Al9Si4O23(OH)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.
Zircon
Formula: Zr(SiO4)
Reference: Edwards, M.G. (1917) The American Mineralogist, 2, #7, 88-89.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Diamond1.CB.10aC
Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Chromite4.BB.05Fe2+Cr3+2O4
Chrysoberyl4.BA.05BeAl2O4
var: Cymophane4.BA.05BeAl2O4
Corundum4.CB.05Al2O3
var: Sapphire4.CB.05Al2O3
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Ilmenite4.CB.05Fe2+TiO3
Magnetite4.BB.05Fe2+Fe3+2O4
Opal4.DA.10SiO2 · nH2O
Quartz4.DA.05SiO2
var: Amethyst4.DA.05SiO2
var: Chalcedony4.DA.05SiO2
Rutile4.DB.05TiO2
Group 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
var: Melanite9.AD.25Ca3Fe3+2(SiO4)3
Beryl9.CJ.05Be3Al2(Si6O18)
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Kyanite9.AF.15Al2(SiO4)O
Orthoclase9.FA.30K(AlSi3O8)
Pyrope9.AD.25Mg3Al2(SiO4)3
Staurolite9.AF.30Fe2+2Al9Si4O23(OH)
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Diamond1.3.6.1C
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Corundum4.3.1.1Al2O3
Hematite4.3.1.2Fe2O3
Ilmenite4.3.5.1Fe2+TiO3
AX2
Rutile4.4.1.1TiO2
Group 7 - MULTIPLE OXIDES
AB2X4
Chromite7.2.3.3Fe2+Cr3+2O4
Chrysoberyl7.2.9.1BeAl2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Pyrope51.4.3a.1Mg3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [4] and >[4] coordination
Kyanite52.2.2c.1Al2(SiO4)O
Staurolite52.2.3.1Fe2+2Al9Si4O23(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)
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 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Si Tetrahedral Frameworks - SiO2 with H2O and organics
Opal75.2.1.1SiO2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
Andradite
var: Melanite
-Ca3Fe3+2(SiO4)3
Chrysoberyl
var: Cymophane
-BeAl2O4
Corundum
var: Sapphire
-Al2O3
Hematite
var: Specularite
-Fe2O3
'Limonite'-(Fe,O,OH,H2O)
'Mica Group'-
Quartz
var: Amethyst
-SiO2
var: Chalcedony-SiO2
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H Limonite(Fe,O,OH,H2O)
H OpalSiO2 · nH2O
H StauroliteFe22+Al9Si4O23(OH)
BeBeryllium
Be BerylBe3Al2(Si6O18)
Be ChrysoberylBeAl2O4
Be Chrysoberyl (var: Cymophane)BeAl2O4
BBoron
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
CCarbon
C DiamondC
OOxygen
O Quartz (var: Amethyst)SiO2
O BerylBe3Al2(Si6O18)
O Quartz (var: Chalcedony)SiO2
O ChromiteFe2+Cr23+O4
O ChrysoberylBeAl2O4
O Chrysoberyl (var: Cymophane)BeAl2O4
O CorundumAl2O3
O Corundum (var: Sapphire)Al2O3
O KyaniteAl2(SiO4)O
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O OrthoclaseK(AlSi3O8)
O Andradite (var: Melanite)Ca3Fe23+(SiO4)3
O PyropeMg3Al2(SiO4)3
O IlmeniteFe2+TiO3
O Limonite(Fe,O,OH,H2O)
O MagnetiteFe2+Fe23+O4
O OpalSiO2 · nH2O
O QuartzSiO2
O RutileTiO2
O HematiteFe2O3
O Hematite (var: Specularite)Fe2O3
O StauroliteFe22+Al9Si4O23(OH)
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O ZirconZr(SiO4)
O AndraditeCa3Fe23+(SiO4)3
MgMagnesium
Mg PyropeMg3Al2(SiO4)3
AlAluminium
Al BerylBe3Al2(Si6O18)
Al ChrysoberylBeAl2O4
Al Chrysoberyl (var: Cymophane)BeAl2O4
Al CorundumAl2O3
Al Corundum (var: Sapphire)Al2O3
Al KyaniteAl2(SiO4)O
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Al OrthoclaseK(AlSi3O8)
Al PyropeMg3Al2(SiO4)3
Al StauroliteFe22+Al9Si4O23(OH)
SiSilicon
Si Quartz (var: Amethyst)SiO2
Si BerylBe3Al2(Si6O18)
Si Quartz (var: Chalcedony)SiO2
Si KyaniteAl2(SiO4)O
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Si OrthoclaseK(AlSi3O8)
Si Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Si PyropeMg3Al2(SiO4)3
Si OpalSiO2 · nH2O
Si QuartzSiO2
Si StauroliteFe22+Al9Si4O23(OH)
Si ZirconZr(SiO4)
Si AndraditeCa3Fe23+(SiO4)3
SSulfur
S PyriteFeS2
KPotassium
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Ca AndraditeCa3Fe23+(SiO4)3
TiTitanium
Ti IlmeniteFe2+TiO3
Ti RutileTiO2
CrChromium
Cr ChromiteFe2+Cr23+O4
FeIron
Fe ChromiteFe2+Cr23+O4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe Andradite (var: Melanite)Ca3Fe23+(SiO4)3
Fe IlmeniteFe2+TiO3
Fe Limonite(Fe,O,OH,H2O)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe HematiteFe2O3
Fe Hematite (var: Specularite)Fe2O3
Fe StauroliteFe22+Al9Si4O23(OH)
Fe AndraditeCa3Fe23+(SiO4)3
ZrZirconium
Zr ZirconZr(SiO4)

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