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Pokrovskite

A valid IMA mineral species
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Mg2(CO3)(OH)2
Colour:
Pinkish-white to tan
Lustre:
Dull
Hardness:
3
Specific Gravity:
2.51 - 2.52
Crystal System:
Monoclinic
Member of:
Malachite-Rosasite Group
Name:
Named in honor of Pavel Vladimirovich Pokrovskii (Павел Владимирович Покровский) (19 May 1912, Rybinsk, Yaroslavl, Russian Empire – 2 August 1979, Sverdlovsk, Russia), mineralogist, Institute of Geology and Geochemistry, Sverdlovsk, Russia.
Type Locality:
ⓘDunite lens, Zlatogorsk ultramafic intrusion, Zlatogorsk, Aiyrtau District, North Kazakhstan Region, Kazakhstan
This page provides mineralogical data about Pokrovskite.


Unique Identifiers
Type description reference:
Ivanov, O.K., Malinovskii, Y.A., Mozherin, Y.V. (1984) Pokrovskite, Mg2(CO3)(OH)2·0.5H2O, a new mineral from the Zlatorgorskaya. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 113 (1), 90-95.

Classification of Pokrovskite

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
Dana 8th ed.:
16a.3.1.5

16a : ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
3 : (AB)2(XO3)Zq
Hey's CIM Ref.:
11.3.5

11 : Carbonates
3 : Carbonates of Mg

Mineral Symbols
Transparency:
Translucent
Colour:
Pinkish-white to tan
Comment:
may be opaque due to inclusions.
Streak:
White
Hardness:
3 onMohs scale
Density:
2.51 - 2.52 g/cm3 (Measured)    2.58 g/cm3 (Calculated)

Optical Data of Pokrovskite
Surface Relief:
Moderate
Dispersion:
weak

Chemistry of Pokrovskite

Crystallography of Pokrovskite
Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia.
Associated Minerals at Type Locality:
DolomiteMagnesite
Reference:
Ivanov, O.K., Malinovskii, Y.A., Mozherin, Y.V. (1984) Pokrovskite, Mg2(CO3)(OH)2·0.5H2O, a new mineral from the Zlatorgorskaya. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 113 (1), 90-95.

Synonyms of Pokrovskite

Other Language Names for Pokrovskite

Relationship of Pokrovskite to other Species
Other Members of Malachite-Rosasite Group:
ChukanoviteFe2+2(CO3)(OH)2Mon. 2/m :P21/b
Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m :P21/b
KolweziteCuCo(CO3)(OH)2Tric.
MalachiteCu2(CO3)(OH)2Mon. 2/m :P21/b
Mcguinnessite(Mg,Cu)2(CO3)(OH)2Mon. 2/m
NullaginiteNi2(CO3)(OH)2Mon. 2/m :P21/b
ParádsasváriteZn2(CO3)(OH)2Mon. 2/m :P21/b
PerchiazziiteCo2(CO3)(OH)2Mon. 2/m :P21/b
Rosasite(Cu,Zn)2(CO3)(OH)2Mon. 2/m :P21/b
Zincrosasite(Zn,Cu)2(CO3)(OH)2Mon.

Common AssociatesMon. 2/m :P21/b5.BA.10Mcguinnessite(Mg,Cu)2(CO3)(OH)2Mon. 2/m5.BA.10Zincrosasite(Zn,Cu)2(CO3)(OH)2Mon.5.BA.10ParádsasváriteZn2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10Rosasite(Cu,Zn)2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10NullaginiteNi2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10Georgeite[Cu(OH)2-x(H2O)x][CO3]x/2Amor.5.BA.10Glaukosphaerite(Cu,Ni)2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10KolweziteCuCo(CO3)(OH)2Tric.5.BA.10ChukanoviteFe2+2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10MalachiteCu2(CO3)(OH)2Mon. 2/m :P21/b5.BA.10PerchiazziiteCo2(CO3)(OH)2Mon. 2/m :P21/b5.BA.15Aurichalcite(Zn,Cu)5(CO3)2(OH)6Mon. 2/m :P21/m5.BA.15HydrozinciteZn5(CO3)2(OH)6Mon. 2/m :B2/m5.BA.20HoldawayiteMn6(CO3)2(OH)7(Cl,OH)Mon. 2/m :B2/m5.BA.25UM1977-03-COSiO:CaClHCa10-11(CO3)7(SiO4)Cl1-2(OH)1-2Mon.5.BA.25DeferniteCa6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42]Orth.mmm(2/m2/m2/m) :Pnma5.BA.30SclariteZn7(CO3)2(OH)10Mon. 2/m :B2/b5.BA.30Loseyite(Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10Mon. 2/m

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    • References for PokrovskiteⓘHuber QuarryBlaß et al. (1994)+1 other reference
    Japan
     
    Prof
    Kazakhstan (TL)
     
    Pekov (1998)
    USA
     
    G. C. Jones and B. Jackson (1993)Frost (2006)Parker (2005)Castor et al. (2004)Bernard et al. (2004)FM newsletter vol.31 no.1 Jan-Mar '01 ...
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