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Kainotropite

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About KainotropiteHide

Formula:
Cu4Fe3+O2(V2O7)(VO4)
Colour:
Iron-black to reddish-black
Lustre:
Sub-Metallic
Specific Gravity:
4.10 (Calculated)
Crystal System:
Orthorhombic
Name:
The name is derived from the Greek word καινóτρoπoς, unusual, in allusion to its uncommon (for natural vanadates) anionic composition: it is the first mineral containing both pyrovanadate (V2O7)4– and orthovanadate (VO4)3– anions.
New structure type.
Other minerals containing copper and divanadate group: blossite, engelhauptite, volborthite, ziesite.


Classification of KainotropiteHide

Approved
Approval Year:
2015
First Published:
2020

Physical Properties of KainotropiteHide

Sub-Metallic
Colour:
Iron-black to reddish-black
Density:
4.10 g/cm3 (Calculated)

Chemical Properties of KainotropiteHide

Formula:
Cu4Fe3+O2(V2O7)(VO4)

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Crystallography of KainotropiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pnma
Setting:
Pnma
Cell Parameters:
a = 14.139(2) Å, b = 6.7102(7) Å, c = 11.418(1) Å
Ratio:
a:b:c = 2.107 : 1 : 1.702
Unit Cell V:
1083.3 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.89Å(100)
5.728Å(33)
3.698Å(35)
3.651Å(25)
3.357Å(52)
3.034Å(77)
2.968Å(60)
2.655Å(27)

Geological EnvironmentHide

Paragenetic Mode(s):
•  Fumarolic

Type Occurrence of KainotropiteHide

General Appearance of Type Material:
Prismatic crystals up to 0.2 × 0.2 × 0.5 mm3, isolated or combined in clusters up to 0.7 mm across
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, registration number 4721/1.
Empirical Formula of Type Material:
Cu3.96Fe3+0.85Al0.19Ti0.03(V2.78As0.15Mo0.04)Σ2.97O13
Chemical Analysis of Type Material:
CuO46.69 %
Al2O31.40 %
Fe2O310.04 %
TiO20.32 %
V2O537.58 %
As2O52.55 %
MoO30.76 %
Total:99.34 %
Geological Setting of Type Material:
Found in sublimates of fumaroles
Associated Minerals at Type Locality:

Synonyms of KainotropiteHide

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.

References for KainotropiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Polekhovsky, Y.S., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2015) Kainotropite, IMA 2015-053. CNMNC Newsletter No. 27, October 2015, page 1226; Mineralogical Magazine, 79, 1229–1236.
Pekov, I. V., Zubkova, N. V., Yapaskurt, V. O., Polekhovsky, Y. S., Britvin, S. N. , Turchkova, A. G., Sidorov, E. G. & Pushcharovsky, D. Y. (2020) Kainotropite, Cu4Fe3+O2(V2O7)(VO4), a new mineral with a complex vanadate anion from fumarolic exhalations of the Tolbachik volcano, Kamchatka, Russia. The Canadian Mineralogist, 58: 155-165.

Internet Links for KainotropiteHide

Localities for KainotropiteHide

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 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Russia (TL)
 
  • Kamchatka Krai
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
          • Second scoria cone
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Polekhovsky, Y.S., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2015) Kainotropite, IMA 2015-053. CNMNC Newsletter No. 27, October 2015, page 1226; Mineralogical Magazine, 79, 1229–1236.; Pekov, I. V., Zubkova, N. V., Yapaskurt, V. O., Polekhovsky, Y. S., Britvin, S. N. , Turchkova, A. G., Sidorov, E. G. & Pushcharovsky, D. Y. (2020) Kainotropite, Cu4Fe3+O2(V2O7)(VO4), a new mineral with a complex vanadate anion from fumarolic exhalations of the Tolbachik volcano, Kamchatka, Russia. The Canadian Mineralogist, 58: 155-165.
      • Mountain 1004
Shchipalkina, N. V., Pekov, I. V., Koshlyakova, N. N., Britvin, S. N., Zubkova, N. V., Varlamov, D. A., & Sidorov, E. G. (2020). Unusual silicate mineralization in fumarolic sublimates of the Tolbachik volcano, Kamchatka, Russia–Part 1: Neso-, cyclo-, ino-and phyllosilicates. European Journal of Mineralogy, 32(1), 101-119.
 
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