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Krasheninnikovite

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About KrasheninnikoviteHide

Stepan P. Krasheninnikov
Formula:
KNa2CaMg(SO4)3F
Colour:
Colorless, White
Lustre:
Vitreous
Hardness:
2½ - 3
Specific Gravity:
2.68
Crystal System:
Hexagonal
Name:
Named in 2011 by I.V. Pekov et al. in honor of Stepan Petrovich Krasheninnikov (Степа́н Петро́вич Крашени́нников) (11 November 1711, Moscow, Russia - 8 March 1755, Saint Petersburg, Russia), one of first scientists to research the Kamchatka Peninsula. He was a naturalist, botanist, and geographer. The Krasheninnikov Volcano on Kamchatka is also named in his honor.
This page provides mineralogical data about Krasheninnikovite.


Classification of KrasheninnikoviteHide

Approved
Approval Year:
2011

Pronounciation of KrasheninnikoviteHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of KrasheninnikoviteHide

Vitreous
Transparency:
Transparent
Colour:
Colorless, White
Comment:
Colorless in individuals and white in aggregates
Hardness:
2½ - 3 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Density:
2.68(1) g/cm3 (Measured)    2.67 g/cm3 (Calculated)

Optical Data of KrasheninnikoviteHide

Type:
Uniaxial (-)
RI values:
nω = 1.500() nε = 1.492(2)
Max Birefringence:
δ = 0.008
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate

Chemical Properties of KrasheninnikoviteHide

Formula:
KNa2CaMg(SO4)3F

Crystallography of KrasheninnikoviteHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm (6/m 2/m 2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mcm
Setting:
P63/mcm
Cell Parameters:
a = 16.6682(2) Å, c = 6.9007(1) Å
Ratio:
a:c = 1 : 0.414
Unit Cell V:
1660.36 ų
Z:
6
Morphology:
Long-prismatic to acicular crystals up to 3 mm long and up to 20 μm thick.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.284(23)
3.610(23)
3.566(17)
3.459(41)
3.153(100)
3.117(21)
2.660(39)
2.085(19)

Type Occurrence of KrasheninnikoviteHide

General Appearance of Type Material:
Long-prismatic to acicular crystals up to 3 mm long and up to 20 μm thick. The crystals are combined in sheaf-like, radiating or open-work matted aggregates forming nests up to several cm3 or crusts.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow,Russia, registration number 4112/1
Geological Setting of Type Material:
Found in sublimates of an active fumarole
Associated Minerals at Type Locality:

Synonyms of KrasheninnikoviteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Tenorite1 photo of Krasheninnikovite associated with Tenorite on mindat.org.

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 KrasheninnikoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zelenski, M.E., Zubkova, N.V., Ksenofontov, D.A., Kabalov, Y.K., Chukanov, N.V., Yapaskurt, V.O., Zadov, A.E. Pushcharovsky, D.Y. (2011): Krasheninnikovite, IMA 2011-044. CNMNC Newsletter No. 10: October 2011: 2559.
Pekov, I.V., Zelenski, M.E., Zubkova, N.V., Ksenofontov, D.A., Kabalov, Y.K., Chukanov, N.V., Yapaskurt, V.O., Zadov, A.E., Pushcharovsky, D.Y. (2012): Krasheninnikovite, KNa2CaMg(SO4)3F, a new mineral from the Tolbachik volcano, Kamchatka, Russia. American Mineralogist, 97, 1788-1795.

Internet Links for KrasheninnikoviteHide

Localities for KrasheninnikoviteHide

ⓘ - 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 Oblast'
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
Pekov, I.V., Zelenski, M.E., Zubkova, N.V., Ksenofontov, D.A., Kabalov,Y.K., Chukanov, N.V., Yapaskurt, V.O., Zadov,A.E. and Pushcharovsky, D.Y. (2011) :Krasheninnikovite, IMA 2011-044. CNMNC Newsletter No. 10, October 2011, page 2559; Pekov, I.V., Zelenski, M.E., Zubkova, N.V., Ksenofontov, D.A., Kabalov, Y.K., Chukanov, N.V., Yapaskurt, V.O., Zadov, A.E., Pushcharovsky, D.Y. (2012): Krasheninnikovite, KNa2CaMg(SO4)3F, a new mineral from the Tolbachik volcano, Kamchatka, Russia. American Mineralogist, 97, 1788-1795
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Britvin, S.N., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Y. (2015): New zinc and potassium chlorides from fumaroles of the Tolbachik volcano, Kamchatka, Russia: mineral data and crystal chemistry. II. Flinteite, K2ZnCl4. European Journal of Mineralogy, 27, 581-588
Mineral and/or Locality  
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