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Kaznakhtite

A valid IMA mineral species
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03931880017056811877473.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
07216140017056811878099.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
03931880017056811877473.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
07216140017056811878099.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
02779970017056329424197.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
05265160017056088684332.jpg
Kaznakhtite, etc.

Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
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About KaznakhtiteHide

Formula:
Ni6Co3+2(CO3)(OH)16 · 4H2O
Colour:
light green
Lustre:
Earthy
Specific Gravity:
2.864 (Calculated)
Crystal System:
Trigonal
Name:
The mineral is named after its type locality.
The Co analogue of reevesite. Chemically similar to comblainite. Identical to UM1998-10-CO:CoHNi.


Unique IdentifiersHide

Mindat ID:
55607
Long-form identifier:
mindat:1:1:55607:3
GUID
(UUID V4):
f9ddb5b2-3ddf-4140-b65a-45b9f1389119

IMA Classification of KaznakhtiteHide

Classification of KaznakhtiteHide

Strunz-mindat (2024):
5.DA.50

5 : CARBONATES (NITRATES)
D : Carbonates with additional anions, with H2O
A : With medium-sized cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference
KztIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of KaznakhtiteHide

Lustre:
Earthy
Transparency:
Translucent
Colour:
light green
Streak:
white
Cleavage:
Very Good
micaceous on {001}
Density:
2.864 g/cm3 (Calculated)

Optical Data of KaznakhtiteHide

Type:
Uniaxial (-)
RI values:
nω = 1.676(3) nε = 1.657(3)
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Weak
Comments:
greenish hues

Chemistry of KaznakhtiteHide

Mindat Formula:
Ni6Co3+2(CO3)(OH)16 · 4H2O
Elements listed:
C, Co, H, Ni, O - search for minerals with similar chemistry

Crystallography of KaznakhtiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 3.0514(3) Å, c = 23.179(2) Å
Ratio:
a:c = 1 : 7.596
Unit Cell V:
186.91 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.72 Å(100)
3.863 Å(24)
2.630 Å(4)
2.576 Å(10)
2.294 Å(6)
1.950 Å(4)
1.526 Å(4)
1.497 Å(4)

Type Occurrence of KaznakhtiteHide

Type Locality:
ⓘ Kaznakhtite type locality, Kaznakhtinskii ultrabasic massif, Kyzyl-Uyuk locality, Terekta Ridge, Ust-Koksinsky District, Altai Republic, Russia
General Appearance of Type Material:
powdery aggregates forming flattened lenses up to 1.5 × 0.5 cm and veinlets up to 1 cm long and up to 1 mm thick
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration no. 5727/1
Associated Minerals at Type Locality:
StichtiteManganochromiteMagnetiteMagnesioferriteLizardite
HeazlewooditeDolomiteChrysotileChromiteBrucite

Synonyms of KaznakhtiteHide

Relationship of Kaznakhtite to other SpeciesHide

Member of:
Hydrotalcite Group > Hydrotalcite Supergroup
Other Members of this group:
DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m)
DroninoiteNi6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m
HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m (3 2/m) : R3m
Hydrotalcite-3RMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m (3 2/m) : R3m
IowaiteMg6Fe3+2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m
MeixneriteMg6Al2(OH)16(OH)2 · 4H2OTrig. 3m (3 2/m) : R3m
PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m (3 2/m) : R3m
StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
UM2002-02-COH:FeNi(Fe2+,Ni)6Fe3+2(CO3)(OH)16 · 4H2O
WoodalliteMg6Cr2(OH)16Cl2 · 4H2OTrig. 3m (3 2/m) : R3m

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Kaznakhtite associated with StichtiteMg6Cr3+2(OH)16[CO3] · 4H2O
3 photos of Kaznakhtite associated with Serpentine SubgroupD3[Si2O5](OH)4
1 photo of Kaznakhtite associated with HeazlewooditeNi3S2

Related Minerals - Strunz-mindat GroupingHide

5.DA.AlexkhomyakoviteK6(Ca2Na)(CO3)5Cl · 6H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
5.DA.AmoraiteCa12Al6(OH)36(CO3)2(SO3) · 15H2O Tric. 1 : P1
5.DA.05DypingiteMg5(CO3)4(OH)2 · 5H2OMon.
5.DA.05GiorgiositeMg5(CO3)4(OH)2 · 5-6H2O
5.DA.05HydromagnesiteMg5(CO3)4(OH)2 · 4H2OMon. 2/m : P21/b
5.DA.05WidgiemoolthaliteNi5(CO3)4(OH)2 · 5H2OMon. 2/m : P21/b
5.DA.05UM1986-10-CO:ClHMgMnZn (also called Mineral F, Dunn, 1995)Mg5(Zn,Mn)3(CO3)2(OH,Cl)12 · H2O
5.DA.05UM1987-01-CO:HMgSMg4(CO3)2(OH)4 · 6H2O ?Mon.
5.DA.10ArtiniteMg2(CO3)(OH)2 · 3H2OMon. 2/m : B2/m
5.DA.10IndigiriteMg2Al2(CO3)4(OH)2 · 15H2O
5.DA.10ChlorartiniteMg2(CO3)(OH)Cl · 2H2OTrig. 3m : R3c
5.DA.15OtwayiteNi2(CO3)(OH)2 · H2OOrth.
5.DA.15ZaratiteNi3(CO3)(OH)4 · 4H2O ?Iso.
5.DA.20KambaldaiteNaNi4(CO3)3(OH)3 · 3H2OHex. 6 : P63
5.DA.25CallaghaniteCu2Mg2(CO3)(OH)6 · 2H2OMon. 2/m : B2/b
5.DA.30Claraite(Cu,Zn)15(CO3)4(AsO4)2(SO4)(OH)14 · 7H2OTric. 1 : P1
5.DA.35HydroscarbroiteAl14(CO3)3(OH)36 · nH2OTric.
5.DA.35ScarbroiteAl5(CO3)(OH)13 · 5H2OTric.
5.DA.40CaresiteFe2+4Al2(OH)12[CO3] · 3H2OTrig. 3 2 : P31 1 2
5.DA.40QuintiniteMg4Al2(OH)12(CO3) · 3H2OHex. 6 2 2 : P63 2 2
5.DA.40CharmariteMn2+4Al2(OH)12[CO3] · 3H2OHex.
5.DA.40KarchevskyiteMg18Al9(OH)54Sr2(CO3)9(H2O)6 (H3O)5Trig.
5.DA.40UM1987-05-OH:AlCMgMg4Al2(OH)12(CO3,SO4) · 3H2O
5.DA.45Stichtite-2HMg6(Cr,Al)2(CO3)(OH)16 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.DA.45BrugnatelliteMg6Fe3+(CO3)(OH)13 · 4H2OHex.
5.DA.45ChlormagaluminiteMg4Al2(OH)12Cl2 · 3H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
5.DA.45Hydrotalcite-2HMg6Al2(CO3)(OH)16 · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.DA.45Pyroaurite-2HMg6Fe3+2(OH)16(CO3) · 4H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mmc
5.DA.45ZaccagnaiteZn4Al2(OH)12[CO3] · 3H2OHex.
5.DA.45LiudongshengiteZn4Cr2(OH)12(CO3) · 3H2OTrig. 3m (3 2/m) : R3m
5.DA.50ComblainiteNi4Co2(OH)12[CO3] · 3H2OTrig.
5.DA.50DesautelsiteMg6Mn3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m)
5.DA.50HydrotalciteMg6Al2(CO3)(OH)16 · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50PyroauriteMg6Fe3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50ReevesiteNi6Fe3+2(OH)16(CO3) · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50StichtiteMg6Cr3+2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.50TakoviteNi6Al2(OH)16[CO3] · 4H2OTrig. 3m (3 2/m) : R3m
5.DA.55CoalingiteMg10Fe3+2(OH)24[CO3] · 2H2OTrig. 3m (3 2/m) : R3m
5.DA.55Akopovaite Al4Li2(OH)12(CO3)(H2O)3Mon. 2/m : B2/m
5.DA.60ŠlikiteZn2Mg(CO3)2(OH)2 · 4H2OTric. 1 : P1
5.DA.65MarkliteCu5(CO3)2(OH)6 · 6H2OMon. 2/m : P21/b

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for KaznakhtiteHide

References for KaznakhtiteHide

Localities for KaznakhtiteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Altai Republic
    • Ust-Koksinsky District
      • Terekta Ridge
        • Kyzyl-Uyuk locality
          • Kaznakhtinskii ultrabasic massif
Williams et al. (2014) +2 other references
South Korea
 
  • Gyeonggi Province
    • Gwacheon City
Song et al. (1998)
Quick NavTopAbout KaznakhtiteUnique IdentifiersIMA Classification Classification Mineral SymbolsPhysical Properties Optical Data Chemistry Crystallography X-Ray Powder DiffractionType Occurrence SynonymsRelationshipsCommon AssociatesStrunz-MindatOther InformationInternet Links References Localities Locality List
 
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