Mineralogy Database

Kolovratite Mineral Data

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General Kolovratite Information

Help on Chemical  Formula: Chemical Formula: Hydrous vanadate of Ni and Zn
Help on Composition: Composition: Molecular Weight = 196.67 gm
   Vanadium  25.90 %  V    46.24 % V2O5
   Zinc      24.94 %  Zn   31.04 % ZnO
   Nickel     7.46 %  Ni    9.49 % NiO
   Hydrogen   1.03 %  H     9.16 % H2O
   Oxygen    40.68 %  O
            ______        ______ 
            100.00 %       95.93 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Zn0.75Ni0.25(VO4)•(H2O)
Help on Environment: Environment: In quartz schists and carbonaceous slates. An inadequately described mineral.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1922
Help on Locality: Locality: Kara-Chagyr and Uch-Kurgan, Ferghana, Turkestan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Lev S. Kolovrat-Chervinsky (1884-1921), a Russian physicist.
Help on Name Pronunciation: Name Pronunciation: Kolovratite + Pronunciation Say KOLOVRATITE

Kolovratite Image

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Comments: Aqua-colored botryoidal crust of kolovratite.
Location: Mina Ojuela, Mapimi, Durango, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Kolovratite Crystallography

Help on Crystal System: Crystal System: Monoclinic Space Group: ?
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.88(1), 5.83(1), 11.6(1),

Physical Properties of Kolovratite

Help on Cleavage: Cleavage: {???} Indistinct
Help on Color: Color: Greenish yellow, Yellow.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Conchoidal - Very brittle fracture producing small, conchoidal fragments.
Help on Habit: Habit: Botryoidal - "Grape-like" rounded forms (e.g.. malachite).
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light yellow

Optical Properties of Kolovratite

Help on Optical Data: Optical Data: Biaxial (?), b=1.577

Calculated Properties of Kolovratite

Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEKolovratite = 20.42 barns/electron
U=PEKolovratite x rElectron Density= . barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kolovratite is Not Radioactive

Kolovratite Classification

Help on  Dana Class: Dana Class: (40)Hydrated Phosphates, etc
  (40.05)with miscellaneous formulae
  (40.05.13)Dana Group Kolovratite HydrousvanadateofNiandZn ? Mono
Help on  Strunz Class: Strunz Class: 08.CB.50 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CB -With only medium-sized cations, RO4:H2O = 1:1
08.CB.50 Kolovratite HydrousvanadateofNiandZn ? Mono

Other Kolovratite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Kolovratite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Print or Cut-and-Paste your Kolovratite Specimen Label here :


Hydrous vanadate of Ni and Zn
Dana No: Strunz No: 08.CB.50





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