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Yurmarinite

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About YurmariniteHide

Formula:
Na7(Fe3+,Mg,Cu)4(AsO4)6
Colour:
Pale green or pale yellowish green to colourless
Hardness:
Specific Gravity:
4.00 (Calculated)
Crystal System:
Trigonal
Name:
Named in honour of the Russian mineralogist, petrologist and specialist in studies of ore deposits, Professor Yuriy B. Marin (b. 1939).
This page provides mineralogical data about Yurmarinite.


Classification of YurmariniteHide

Approved

Physical Properties of YurmariniteHide

Transparency:
Transparent
Colour:
Pale green or pale yellowish green to colourless
Hardness:
4½ on Mohs scale
Hardness Data:
Estimated
Comment:
~4½
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
One direction of imperfect cleavage
Fracture:
Irregular/Uneven
Density:
4.00 g/cm3 (Calculated)

Optical Data of YurmariniteHide

Type:
Uniaxial (-)
RI values:
nω = 1.748() nε = 1.720(3)
Max Birefringence:
δ = 0.028
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of YurmariniteHide

Formula:
Na7(Fe3+,Mg,Cu)4(AsO4)6

Crystallography of YurmariniteHide

Crystal System:
Trigonal
Class (H-M):
3m (3 2/m) - Hexagonal Scalenohedral
Space Group:
R3c
Setting:
R3c
Cell Parameters:
a = 13.7444(2) Å, c = 18.3077(3) Å
Ratio:
a:c = 1 : 1.332
Unit Cell V:
2995.13 ų
Z:
6
Morphology:
Well-shaped, equant crystals showing {101}, {011}, {100}, {110} and {001}.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.28(45)
4.375(33)
3.440(35)
3.217(36)
2.999(30)
2.841(100)
2.696(29)
2.598(43)
Comments:
From Type Description.

Type Occurrence of YurmariniteHide

General Appearance of Type Material:
Well-shaped, equant crystals, up to 0.3 mm in size, their clusters up to 0.5 mm and thin, interrupted crystal crusts up to 3 mm × 3 mm on volcanic scoria.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4389/1
Geological Setting of Type Material:
Sublimates
Associated Minerals at Type Locality:

Synonyms of YurmariniteHide

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 YurmariniteHide

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., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (2013) Yurmarinite, IMA 2013-033. CNMNC Newsletter No. 16, August 2013, page 2708; Mineralogical Magazine, 77, 2695-2709.
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G., Pushcharovsky, D.Yu. (2014): New arsenate minerals from the Arsenatnaya fumarole, Tolbachik volcano, Kamchatka, Russia. I. Yurmarinite, Na7(Fe3+,Mg,Cu)4(AsO4)6. Mineralogical Magazine, 78, 905-917

Internet Links for YurmariniteHide

Localities for YurmariniteHide

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)
 
  • Far-Eastern Region
    • Kamchatka Oblast'
      • Tolbachik volcano
        • Great Fissure eruption (Main Fracture)
          • Northern Breakthrough (North Breach)
            • Second scoria cone
Pekov, I.V., Zubkova, N.V., Yapaskurt, V.O., Belakovskiy, D.I., Lykova, I.S., Vigasina, M.F., Sidorov, E.G. and Pushcharovsky, D.Y. (2013) Yurmarinite, IMA 2013-033. CNMNC Newsletter No. 16, August 2013, page 2708; Mineralogical Magazine, 77, 2695-2709.
Mineral and/or Locality  
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