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Lake Kumdikol diamond deposit, Lake Kumdikol (Lake Kumdykol'; Ozero Kumdykol'), Prirechnoye, Zerendi District, Akmola Region, Kazakhstani
Regional Level Types
Lake Kumdikol diamond depositDeposit
Lake Kumdikol (Lake Kumdykol'; Ozero Kumdykol')Lake
Prirechnoye- not defined -
Zerendi DistrictDistrict
Akmola RegionRegion
KazakhstanCountry

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Latitude & Longitude (WGS84):
53° North , 68° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Mindat Locality ID:
10155
Long-form identifier:
mindat:1:2:10155:1
GUID (UUID V4):
0
Name(s) in local language(s):
(Kumdy-Kol)


Located on the southwestern shore of Lake Kumdikol, 30 km southwest of the town Kokshetau. The compositions of rocks is (from the bottom upwards): garnet plagiogneisses, garnet-biotite gneisses, plagiomagmatites, garnet-muscovite shales; garnet-muscovite leucocratic granites and gneiss-granites; garnet-biotite and biotite gneisses, quartz microgneisses with interlayers of calciphyries, boudinages of eclogites, and bodies of garnet-pyroxene rocks; garnet migmatites and plagiogneisses; garnet-muscovite, muscovite-biotite and muscovite shales; eclogites and amphibole eclogites.The thickness of the rocks is around 1000m.

There is a discrete zone containing most of the diamonds and beyond it the content drops. The orebody occurs as a flattened, lens-shaped body that extends southwesterly. Diamonds' distribution is uneven. High grades are confined to graphite quartz-sericite-chlorite, quartz-pyroxene, pyroxene-carbonate and other metasomatites. Areas with high concentration of diamonds are separated by low diamond content or without diamonds.
Most of the diamonds are associated with garnet; a little amount is found in biotite; rare crystals are present in pyroxene, amphibole, quartz, ziosite and muscovite. Diamonds often occur at the contacts between different minerals.

Kamdykol diamonds are small and have different morphological properties and mostly contain cubic crystals.85 per cent of the diamonds have a size of less than 50µm. Large crystals have been found: 0.5-1.65 mm crystals in eclogites; octahedra over 1.00mm in garnet-pyroxene rock; 2.95 mm crystals were found in sands from Kumdykol lake.

The cubic crystals have yellow-green colour; octahedral crystals are water transparent; spheroids are pale yellow. Some crystals display weak luminescence. Kumdykol diamonds contain sodium, aluminium, antimony, arsenic, gold, potassium, chromium, manganese, rare earth minerals.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


31 valid minerals. 2 (TL) - type locality of valid minerals.

Detailed Mineral List:

ⓘ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Andalusite
Formula: Al2(SiO4)O
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Aragonite
Formula: CaCO3
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Calcite
Formula: CaCO3
ⓘ Clinochlore
Formula: Mg5Al(AlSi3O10)(OH)8
Description: Replaces majoritic garnet during exhumation. In dolomite marbles.
ⓘ Clinohumite
Formula: Mg9(SiO4)4F2
Description: In diamond-free dolomitic marble.
ⓘ 'Clinopyroxene Subgroup'
ⓘ Coesite
Formula: SiO2
ⓘ Diamond
Formula: C
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Dolomite
Formula: CaMg(CO3)2
Description: Dolomite --> Aragonite + magnesite. In dolomitic marbles.
ⓘ Forsterite
Formula: Mg2SiO4
Description: In diamond-free dolomitic marble. American Geophysical Union, Fall Meeting 2004, abstract #T21A-0501 Publication Date: 12/2004
ⓘ Graphite
Formula: C
Description: Decomposition of magnesite during exhumation. In dolomite marbles.
ⓘ Hydroxylclinohumite var. Titanclinohumite
Formula: (Mg,Ti)9(SiO4)4(OH,F)2
Description: In diamond-free dolomitic marble.
ⓘ 'K Feldspar'
ⓘ Kokchetavite (TL)
Formula: K(AlSi3O8)
Type Locality:
ⓘ Kumdykolite (TL)
Formula: Na(AlSi3O8)
Type Locality:
ⓘ Kyanite
Formula: Al2(SiO4)O
ⓘ Lonsdaleite
Formula: C
ⓘ Magnesite
Formula: MgCO3
Description: Inclusions in majoritic garnet. In dolomite marbles.
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Magnetite var. Titanium-bearing Magnetite
Formula: Fe2+(Fe3+,Ti)2O4
ⓘ Majorite
Formula: Mg3(MgSi)(SiO4)3
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
Description: Exsolutions in supersiliceous clinopyroxene.
ⓘ Pyrope
Formula: Mg3Al2(SiO4)3
Description: In dolomite marbles.
ⓘ Quartz
Formula: SiO2
Description: Exsolutions in supersiliceous clinopyroxene.
ⓘ Rutile
Formula: TiO2
ⓘ Sillimanite
Formula: Al2(SiO4)O
ⓘ Spinel
Formula: MgAl2O4
Description: In symplectites with diopside and magnesian calcite, in dolomite marble.
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ 'Tourmaline'
Formula: AD3G6(T6O18)(BO3)3X3Z
ⓘ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
Description: In diopside of dolomitic marbles.
ⓘ Zircon
Formula: Zr(SiO4)
Description: In dolomite marbles.
ⓘ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGraphite1.CB.05aC
ⓘDiamond1.CB.10aC
ⓘLonsdaleite1.CB.10bC
Group 4 - Oxides and Hydroxides
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘMagnetite
var. Titanium-bearing Magnetite
4.BB.05Fe2+(Fe3+,Ti)2O4
ⓘQuartz4.DA.05SiO2
ⓘCoesite4.DA.35SiO2
ⓘRutile4.DB.05TiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘMagnesite5.AB.05MgCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
Group 9 - Silicates
ⓘForsterite9.AC.05Mg2SiO4
ⓘMajorite9.AD.25Mg3(MgSi)(SiO4)3
ⓘPyrope9.AD.25Mg3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘSillimanite9.AF.05Al2(SiO4)O
ⓘAndalusite9.AF.10Al2(SiO4)O
ⓘKyanite9.AF.15Al2(SiO4)O
ⓘClinohumite9.AF.55Mg9(SiO4)4F2
ⓘHydroxylclinohumite
var. Titanclinohumite
9.AF.55(Mg,Ti)9(SiO4)4(OH,F)2
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘZoisite9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘActinolite9.DE.10◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
ⓘTremolite9.DE.10◻Ca2Mg5(Si8O22)(OH)2
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘPhlogopite9.EC.20KMg3(AlSi3O10)(OH)2
ⓘClinochlore9.EC.55Mg5Al(AlSi3O10)(OH)8
ⓘAlbite9.FA.35Na(AlSi3O8)
ⓘKumdykolite (TL)9.FA.45Na(AlSi3O8)
ⓘKokchetavite (TL)9.FA.75K(AlSi3O8)
Unclassified
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Tourmaline'-AD3G6(T6O18)(BO3)3X3Z
ⓘ'Clinopyroxene Subgroup'-
ⓘ'K Feldspar'-
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Hⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
BBoron
Bⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
CCarbon
Cⓘ AragoniteCaCO3
Cⓘ CalciteCaCO3
Cⓘ DiamondC
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
Cⓘ LonsdaleiteC
Cⓘ MagnesiteMgCO3
OOxygen
Oⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ AndalusiteAl2(SiO4)O
Oⓘ AragoniteCaCO3
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ CalciteCaCO3
Oⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Oⓘ ClinohumiteMg9(SiO4)4F2
Oⓘ CoesiteSiO2
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ ForsteriteMg2SiO4
Oⓘ KyaniteAl2(SiO4)O
Oⓘ MagnesiteMgCO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MajoriteMg3(MgSi)(SiO4)3
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Oⓘ PyropeMg3Al2(SiO4)3
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ SillimaniteAl2(SiO4)O
Oⓘ SpinelMgAl2O4
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Oⓘ TourmalineAD3G6(T6O18)(BO3)3X3Z
Oⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oⓘ ZirconZr(SiO4)
Oⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ KokchetaviteK(AlSi3O8)
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
Oⓘ KumdykoliteNa(AlSi3O8)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ ClinohumiteMg9(SiO4)4F2
Fⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ KumdykoliteNa(AlSi3O8)
MgMagnesium
Mgⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Mgⓘ ClinohumiteMg9(SiO4)4F2
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ ForsteriteMg2SiO4
Mgⓘ MagnesiteMgCO3
Mgⓘ MajoriteMg3(MgSi)(SiO4)3
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgⓘ PyropeMg3Al2(SiO4)3
Mgⓘ SpinelMgAl2O4
Mgⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Mgⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ AndalusiteAl2(SiO4)O
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Alⓘ KyaniteAl2(SiO4)O
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Alⓘ PyropeMg3Al2(SiO4)3
Alⓘ SillimaniteAl2(SiO4)O
Alⓘ SpinelMgAl2O4
Alⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ KokchetaviteK(AlSi3O8)
Alⓘ KumdykoliteNa(AlSi3O8)
SiSilicon
Siⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ AndalusiteAl2(SiO4)O
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ ClinochloreMg5Al(AlSi3O10)(OH)8
Siⓘ ClinohumiteMg9(SiO4)4F2
Siⓘ CoesiteSiO2
Siⓘ DiopsideCaMgSi2O6
Siⓘ ForsteriteMg2SiO4
Siⓘ KyaniteAl2(SiO4)O
Siⓘ MajoriteMg3(MgSi)(SiO4)3
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Siⓘ PyropeMg3Al2(SiO4)3
Siⓘ QuartzSiO2
Siⓘ SillimaniteAl2(SiO4)O
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siⓘ ZirconZr(SiO4)
Siⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ KokchetaviteK(AlSi3O8)
Siⓘ KumdykoliteNa(AlSi3O8)
PPhosphorus
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ PhlogopiteKMg3(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kⓘ KokchetaviteK(AlSi3O8)
CaCalcium
Caⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caⓘ AragoniteCaCO3
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caⓘ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
Tiⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
Tiⓘ Hydroxylclinohumite var. Titanclinohumite(Mg,Ti)9(SiO4)4(OH,F)2
FeIron
Feⓘ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ Magnetite var. Titanium-bearing MagnetiteFe2+(Fe3+,Ti)2O4
ZrZirconium
Zrⓘ ZirconZr(SiO4)

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