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Milkovoite

A valid IMA mineral species - pending publication
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The P-As analogue of kozyrevskite. Chemically similar to karlditmarite.




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Unique IdentifiersHide

Mindat ID:
55452
Long-form identifier:
mindat:1:1:55452:5

Similar NamesHide

MelkoviteA valid IMA mineral species[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe33+O36(OH)]

IMA Classification of MilkovoiteHide

IMA status:
Approved, Pending publication
IMA Formula:
Cu2+4O(PO4)(As5+O4)
Approval year:
2021

Classification of MilkovoiteHide

Strunz-mindat (2026):
8.BB.

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1

Mineral SymbolsHide

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

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

Chemistry of MilkovoiteHide

Mindat Formula:
Cu4O(PO4)(AsO4)
Element Weights:
Element% weight
Cu50.426 %
O28.566 %
As14.863 %
P6.145 %

Calculated from ideal end-member formula.
Elements listed:
As, Cu, O, P - search for minerals with similar chemistry

Crystallography of MilkovoiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm(2/m2/m2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 8.1865(7) Å, b = 6.3559(5) Å, c = 13.668(1) Å
Ratio:
a:b:c = 1.288 : 1 : 2.15
Unit Cell V:
711.18 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.413 Å(100)
3.156 Å(48)
3.043 Å(82)
2.897 Å(31)
2.868 Å(42)
2.709 Å(80)
2.684 Å(42)
1.859 Å(35)
Locality:
Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia

Type Occurrence of MilkovoiteHide

Type Locality:
ⓘ Arsenatnaya fumarole, Second scoria cone, Northern Breakthrough (North Breach), Great Fissure eruption (Main Fracture), Tolbachik Volcanic field, Milkovsky District, Kamchatka Krai, Russia
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5590/1

Synonyms of MilkovoiteHide

Other Language Names for MilkovoiteHide

German:Milkovoit

Related Minerals - Strunz-mindat GroupingHide

8.BB.MoabiteNiFe3+(PO4)OOrth. mmm(2/m2/m2/m) : Pnma
8.BB.TilasiteCaMg(AsO4)FMon.
8.BB.PaulgrothiteCu9Fe3+O4(PO4)4Cl3Orth. mm2 : Cmc21
8.BB.KarlditmariteCu9O4(PO4)2(SO4)2Tric. 1 : P1
8.BB.XArsenowagneriteMg2(AsO4)FMon. 2/m : P21/b
8.BB.05TavoriteLiFe3+(PO4)(OH)Tric. 1 : P1
8.BB.05AmblygoniteLiAl(PO4)FTric. 1 : P1
8.BB.05MontebrasiteLiAl(PO4)(OH)Tric. 1 : P1
8.BB.10ZwieseliteFe2+2(PO4)FMon. 2/m : P21/b
8.BB.10TripliteMn2+2(PO4)FMon. 2/m
8.BB.15'Unnamed (Sb-analogue of Auriacusite)'Fe3+Cu2+[(Sb,As)O4]O
8.BB.15JoosteiteMn2+(Mn3+,Fe3+)(PO4)OMon. 2/m
8.BB.15HydroxylwagneriteMg2(PO4)(OH)Mon. 2/m : P21/b
8.BB.15WagneriteMg2(PO4)FMon. 2/m : P21/b
8.BB.15Stanĕkite(Mn2+,Fe2+,Mg)Fe3+(PO4)OMon. 2/m : P21/b
8.BB.15TriploiditeMn2+2(PO4)(OH)Mon. 2/m : P2/b
8.BB.15SarkiniteMn2+2(AsO4)(OH)Mon. 2/m : P21/b
8.BB.15WolfeiteFe2+2(PO4)(OH)Mon. 2/m : P21/b
8.BB.20HoltedahliteMg2(PO4)(OH)Trig. 3m : P31m
8.BB.20Satterlyite(Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6Trig. 3m(32/m) : P31m
8.BB.25AlthausiteMg4(PO4)2(OH,O)(F,◻)Orth. mmm(2/m2/m2/m) : Pnma
8.BB.30ZincoliveniteCuZn(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30AdamiteZn2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30LibetheniteCu2(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30ZincolibetheniteCuZn(PO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30EveiteMn2+2(AsO4)(OH)Orth. mmm(2/m2/m2/m) : Pnnm
8.BB.30OliveniteCu2(AsO4)(OH)Mon. 2/m : P21/m
8.BB.30AuriacusiteFe3+Cu2+(AsO4)OOrth. mmm(2/m2/m2/m) : Pnnm
8.BB.35ParadamiteZn2(AsO4)(OH)Tric. 1 : P1
8.BB.35TarbuttiteZn2(PO4)(OH)Tric. 1 : P1
8.BB.40BarbosaliteFe2+Fe3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40ScorzaliteFe2+Al2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40LazuliteMgAl2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40MeizhouiteFe2+V3+2(PO4)2(OH)2Mon. 2/m : P21/b
8.BB.40HentscheliteCuFe3+2(PO4)2(OH)2Mon. 2/m : P21/m
8.BB.40WilhelmkleiniteZnFe3+2(AsO4)2(OH)2Mon. 2/m : P21/m
8.BB.45DokuchaeviteCu8O2(VO4)3Cl3Tric. 1 : P1
8.BB.45TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
8.BB.45YaroshevskiteCu9O2(VO4)4Cl2 Tric. 1 : P1
8.BB.50NamibiteCu(BiO)2(VO4)(OH)Tric. 1 : P1
8.BB.50Aleutite[Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)ClMon. 2/m : B2/m
8.BB.52aEriclaxmaniteCu4O(AsO4)2Tric. 1 : P1
8.BB.52bKozyrevskiteCu4O(AsO4)2Orth. mmm(2/m2/m2/m) : Pnma
8.BB.55Phosphoellenbergerite(Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6Hex. 6mm : P63mc
8.BB.55PopoviteCu5O2(AsO4)2Tric. 1 : P1
8.BB.60UrusoviteCuAl(AsO4)OMon. 2/m : P21/b
8.BB.65TheoparacelsiteCu3(As2O7)(OH)2Orth. mmm(2/m2/m2/m) : Pmma
8.BB.70TuraniteCu5(VO4)2(OH)4Tric. 1 : P1
8.BB.75StoiberiteCu5(VO4)2O2Mon. 2/m
8.BB.80FingeriteCu11(VO4)6O2Tric. 1 : P1
8.BB.85AverieviteCu6(VO4)2O2Cl2Trig. 3 : P3
8.BB.90RichelliteCaFe3+2(PO4)2(OH,F)2Amor.
8.BB.90LipscombiteFe2+Fe3+2(PO4)2(OH)2Tet. 422 : P41212
8.BB.90ZinclipscombiteZnFe3+2(PO4)2(OH)2Tet. 422 : P43212

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 MilkovoiteHide

References for MilkovoiteHide

Localities for MilkovoiteHide

Showing 1 localities.

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.
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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)
 
  • Kamchatka Krai
    • Milkovsky District
      • Tolbachik Volcanic field
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Miyawaki et al. (2021)
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