Lake Kumdikol diamond deposit, Lake Kumdikol (Lake Kumdykol'; Ozero Kumdykol'), Prirechnoye, Zerendi District, Akmola Region, Kazakhstani
Regional Level Types | |
---|---|
Lake Kumdikol diamond deposit | Deposit |
Lake Kumdikol (Lake Kumdykol'; Ozero Kumdykol') | Lake |
Prirechnoye | - not defined - |
Zerendi District | District |
Akmola Region | Region |
Kazakhstan | Country |
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Type:
Mindat Locality ID:
10155
Long-form identifier:
mindat:1:2:10155:1
GUID (UUID V4):
56606db5-ab1c-4b6a-9547-2b2e427ce9ae
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 50Β΅m. 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 ElementsDetailed Mineral List:
β Actinolite Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
β Albite Formula: Na(AlSi3O8) |
β Andalusite Formula: Al2(SiO4)O |
β 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) |
β Aragonite Formula: CaCO3 |
β 'Biotite' Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
β Calcite Formula: CaCO3 |
β Clinochlore Formula: Mg5Al(AlSi3O10)(OH)8 Description: Replaces majoritic garnet during exhumation.
In dolomite marbles. |
β Clinohumite Formula: Mg9(SiO4)4F2 Description: In diamond-free dolomitic marble. |
β 'Clinopyroxene Subgroup' |
β Coesite Formula: SiO2 |
β Diamond Formula: C |
β Diopside Formula: CaMgSi2O6 |
β Dolomite Formula: CaMg(CO3)2 Description: Dolomite --> Aragonite + magnesite.
In dolomitic marbles. |
β Forsterite Formula: Mg2SiO4 Description: In diamond-free dolomitic marble.
American Geophysical Union, Fall Meeting 2004, abstract #T21A-0501
Publication Date:
12/2004
|
β Graphite Formula: C Description: Decomposition of magnesite during exhumation.
In dolomite marbles. |
β Hydroxylclinohumite var. Titanclinohumite Formula: (Mg,Ti)9(SiO4)4(OH,F)2 Description: In diamond-free dolomitic marble. |
β 'K Feldspar' |
β Kokchetavite (TL) Formula: K(AlSi3O8) Type Locality: |
β Kumdykolite (TL) Formula: Na(AlSi3O8) Type Locality: |
β Kyanite Formula: Al2(SiO4)O |
β Lonsdaleite Formula: C |
β Magnesite Formula: MgCO3 Description: Inclusions in majoritic garnet.
In dolomite marbles. |
β Magnetite Formula: Fe2+Fe3+2O4 |
β Magnetite var. Titanium-bearing Magnetite Formula: Fe2+(Fe3+,Ti)2O4 |
β Majorite Formula: Mg3(MgSi)(SiO4)3 |
β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
β Muscovite var. Phengite Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
β Muscovite var. Sericite Formula: KAl2(AlSi3O10)(OH)2 |
β Phlogopite Formula: KMg3(AlSi3O10)(OH)2 Description: Exsolutions in supersiliceous clinopyroxene. |
β Pyrope Formula: Mg3Al2(SiO4)3 Description: In dolomite marbles. |
β Quartz Formula: SiO2 Description: Exsolutions in supersiliceous clinopyroxene. |
β Rutile Formula: TiO2 |
β Sillimanite Formula: Al2(SiO4)O |
β Spinel Formula: MgAl2O4 Description: In symplectites with diopside and magnesian calcite, in dolomite marble. |
β Titanite Formula: CaTi(SiO4)O |
β 'Tourmaline' Formula: AD3G6 (T6O18)(BO3)3X3Z |
β Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 Description: In diopside of dolomitic marbles. References: |
β Zircon Formula: Zr(SiO4) Description: In dolomite marbles. |
β Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 1 - Elements | |||
---|---|---|---|
β | Graphite | 1.CB.05a | C |
β | Diamond | 1.CB.10a | C |
β | Lonsdaleite | 1.CB.10b | C |
Group 4 - Oxides and Hydroxides | |||
β | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
β | Spinel | 4.BB.05 | MgAl2O4 |
β | Magnetite var. Titanium-bearing Magnetite | 4.BB.05 | Fe2+(Fe3+,Ti)2O4 |
β | Quartz | 4.DA.05 | SiO2 |
β | Coesite | 4.DA.35 | SiO2 |
β | Rutile | 4.DB.05 | TiO2 |
Group 5 - Nitrates and Carbonates | |||
β | Calcite | 5.AB.05 | CaCO3 |
β | Magnesite | 5.AB.05 | MgCO3 |
β | Dolomite | 5.AB.10 | CaMg(CO3)2 |
β | Aragonite | 5.AB.15 | CaCO3 |
Group 9 - Silicates | |||
β | Forsterite | 9.AC.05 | Mg2SiO4 |
β | Pyrope | 9.AD.25 | Mg3Al2(SiO4)3 |
β | Majorite | 9.AD.25 | Mg3(MgSi)(SiO4)3 |
β | Zircon | 9.AD.30 | Zr(SiO4) |
β | Sillimanite | 9.AF.05 | Al2(SiO4)O |
β | Andalusite | 9.AF.10 | Al2(SiO4)O |
β | Kyanite | 9.AF.15 | Al2(SiO4)O |
β | Clinohumite | 9.AF.55 | Mg9(SiO4)4F2 |
β | Hydroxylclinohumite var. Titanclinohumite | 9.AF.55 | (Mg,Ti)9(SiO4)4(OH,F)2 |
β | Titanite | 9.AG.15 | CaTi(SiO4)O |
β | Zoisite | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
β | Diopside | 9.DA.15 | CaMgSi2O6 |
β | Tremolite | 9.DE.10 | β»Ca2Mg5(Si8O22)(OH)2 |
β | Actinolite | 9.DE.10 | β»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
β | Muscovite var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
β | var. Phengite | 9.EC.15 | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
β | 9.EC.15 | KAl2(AlSi3O10)(OH)2 | |
β | Phlogopite | 9.EC.20 | KMg3(AlSi3O10)(OH)2 |
β | Clinochlore | 9.EC.55 | Mg5Al(AlSi3O10)(OH)8 |
β | Albite | 9.FA.35 | Na(AlSi3O8) |
β | Kumdykolite (TL) | 9.FA.45 | Na(AlSi3O8) |
β | Kokchetavite (TL) | 9.FA.75 | K(AlSi3O8) |
Unclassified | |||
β | 'Tourmaline' | - | AD3G6 (T6O18)(BO3)3X3Z |
β | 'Clinopyroxene Subgroup' | - | |
β | 'Biotite' | - | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
β | 'K Feldspar' | - | |
β | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
H | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
H | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
H | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
H | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
H | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
H | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
H | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
H | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
H | β Apatite | Ca5(PO4)3(Cl/F/OH) |
B | Boron | |
B | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
C | Carbon | |
C | β Aragonite | CaCO3 |
C | β Calcite | CaCO3 |
C | β Diamond | C |
C | β Dolomite | CaMg(CO3)2 |
C | β Graphite | C |
C | β Lonsdaleite | C |
C | β Magnesite | MgCO3 |
O | Oxygen | |
O | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
O | β Albite | Na(AlSi3O8) |
O | β Andalusite | Al2(SiO4)O |
O | β Aragonite | CaCO3 |
O | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
O | β Calcite | CaCO3 |
O | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
O | β Clinohumite | Mg9(SiO4)4F2 |
O | β Coesite | SiO2 |
O | β Diopside | CaMgSi2O6 |
O | β Dolomite | CaMg(CO3)2 |
O | β Forsterite | Mg2SiO4 |
O | β Kyanite | Al2(SiO4)O |
O | β Magnesite | MgCO3 |
O | β Magnetite | Fe2+Fe23+O4 |
O | β Majorite | Mg3(MgSi)(SiO4)3 |
O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
O | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
O | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
O | β Pyrope | Mg3Al2(SiO4)3 |
O | β Quartz | SiO2 |
O | β Rutile | TiO2 |
O | β Sillimanite | Al2(SiO4)O |
O | β Spinel | MgAl2O4 |
O | β Titanite | CaTi(SiO4)O |
O | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
O | β Tourmaline | AD3G6 (T6O18)(BO3)3X3Z |
O | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
O | β Zircon | Zr(SiO4) |
O | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
O | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
O | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
O | β Kokchetavite | K(AlSi3O8) |
O | β Apatite | Ca5(PO4)3(Cl/F/OH) |
O | β Kumdykolite | Na(AlSi3O8) |
F | Fluorine | |
F | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
F | β Clinohumite | Mg9(SiO4)4F2 |
F | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
F | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Na | Sodium | |
Na | β Albite | Na(AlSi3O8) |
Na | β Kumdykolite | Na(AlSi3O8) |
Mg | Magnesium | |
Mg | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Mg | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Mg | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Mg | β Clinohumite | Mg9(SiO4)4F2 |
Mg | β Diopside | CaMgSi2O6 |
Mg | β Dolomite | CaMg(CO3)2 |
Mg | β Forsterite | Mg2SiO4 |
Mg | β Magnesite | MgCO3 |
Mg | β Majorite | Mg3(MgSi)(SiO4)3 |
Mg | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
Mg | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
Mg | β Pyrope | Mg3Al2(SiO4)3 |
Mg | β Spinel | MgAl2O4 |
Mg | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
Mg | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
Al | Aluminium | |
Al | β Albite | Na(AlSi3O8) |
Al | β Andalusite | Al2(SiO4)O |
Al | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Al | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Al | β Kyanite | Al2(SiO4)O |
Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Al | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
Al | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
Al | β Pyrope | Mg3Al2(SiO4)3 |
Al | β Sillimanite | Al2(SiO4)O |
Al | β Spinel | MgAl2O4 |
Al | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Al | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Al | β Kokchetavite | K(AlSi3O8) |
Al | β Kumdykolite | Na(AlSi3O8) |
Si | Silicon | |
Si | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Si | β Albite | Na(AlSi3O8) |
Si | β Andalusite | Al2(SiO4)O |
Si | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Si | β Clinochlore | Mg5Al(AlSi3O10)(OH)8 |
Si | β Clinohumite | Mg9(SiO4)4F2 |
Si | β Coesite | SiO2 |
Si | β Diopside | CaMgSi2O6 |
Si | β Forsterite | Mg2SiO4 |
Si | β Kyanite | Al2(SiO4)O |
Si | β Majorite | Mg3(MgSi)(SiO4)3 |
Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
Si | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
Si | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
Si | β Pyrope | Mg3Al2(SiO4)3 |
Si | β Quartz | SiO2 |
Si | β Sillimanite | Al2(SiO4)O |
Si | β Titanite | CaTi(SiO4)O |
Si | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
Si | β Zircon | Zr(SiO4) |
Si | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Si | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
Si | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
Si | β Kokchetavite | K(AlSi3O8) |
Si | β Kumdykolite | Na(AlSi3O8) |
P | Phosphorus | |
P | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Cl | Chlorine | |
Cl | β Apatite | Ca5(PO4)3(Cl/F/OH) |
K | Potassium | |
K | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
K | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
K | β Phlogopite | KMg3(AlSi3O10)(OH)2 |
K | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
K | β Kokchetavite | K(AlSi3O8) |
Ca | Calcium | |
Ca | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Ca | β Aragonite | CaCO3 |
Ca | β Calcite | CaCO3 |
Ca | β Diopside | CaMgSi2O6 |
Ca | β Dolomite | CaMg(CO3)2 |
Ca | β Titanite | CaTi(SiO4)O |
Ca | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
Ca | β Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Ca | β Apatite | Ca5(PO4)3(Cl/F/OH) |
Ti | Titanium | |
Ti | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Ti | β Rutile | TiO2 |
Ti | β Titanite | CaTi(SiO4)O |
Ti | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
Ti | β Hydroxylclinohumite var. Titanclinohumite | (Mg,Ti)9(SiO4)4(OH,F)2 |
Fe | Iron | |
Fe | β Actinolite | ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2 |
Fe | β Biotite | K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2 |
Fe | β Magnetite | Fe2+Fe23+O4 |
Fe | β Muscovite var. Phengite | KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2 |
Fe | β Magnetite var. Titanium-bearing Magnetite | Fe2+(Fe3+,Ti)2O4 |
Zr | Zirconium | |
Zr | β Zircon | Zr(SiO4) |
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