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Saranchinaite

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Formula:
Na2Cu(SO4)2
Crystal System:
Monoclinic
Name:
Named in honour of Galina M. Saranchina (1911–2004), a Russian petrologist and professor, Department of Petrology, St. Petersburg State University, Russia.
New structure type.
Transforms into kröhnkite within one week when exposed to open air at 87% relative humidity and 25°C (Siidra et al., 2018).


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Classification of SaranchinaiteHide

Approved
Approval Year:
2015
First Published:
2018

Chemical Properties of SaranchinaiteHide

Formula:
Na2Cu(SO4)2

Crystallography of SaranchinaiteHide

Crystal System:
Monoclinic
Class (H-M):
2 - Sphenoidal
Space Group:
P21
Setting:
P21
Cell Parameters:
a = 9.0109(5) Å, b = 15.6355(8) Å, c = 10.1507(5) Å
β = 107.08(1)°
Ratio:
a:b:c = 0.576 : 1 : 0.649
Unit Cell V:
1367.06 ų
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.546(87)
6.100(80)
4.829(85)
4.598(100)
3.548(86)
2.932(70)
2.729(66)
2.708(80)
Comments:
From Type Description.

Occurrences of SaranchinaiteHide

Paragenetic Mode(s):
•  Fumarolic

Type Occurrence of SaranchinaiteHide

Place of Conservation of Type Material:
Type material is deposited in the collections of the Mineralogical Museum, Department of Mineralogy, St Petersburg State University, St Petersburg, Russia, specimen number 19639
Reference:
Siidra, O.I., Lukina, E.A., Nazarchuk, E.V., Depmeier, W., Bubnova, R.S., Agakhanov, A.A., Adontseva, E.Yu., Filatov, S.K., Kovrugin, V.M. (2018) Saranchinaite, Na2Cu(SO4)2, A New Exhalative Mineral from Tolbachik Volcano, Kamchatka, Russia, and a product of the Reversible Dehydration of Kröhnkite, Na2Cu(SO4)2(H2O)2. Mineralogical Magazine: 82: 257-274.

Synonyms of SaranchinaiteHide

Other InformationHide

Notes:
Sensitive to moisture and transforms into kröhnkite within one week when exposed to open air at 87% relative humidity and 25°C.
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 SaranchinaiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Agakhanov, A.A., Avdontseva, E.Y., Kayukov, R.A., Vergasova, L.P., Filatov, S.K. and Karpov, G.A. (2015) Saranchinaite, IMA 2015-019. CNMNC Newsletter No. 26, August 2015, page 942; Mineralogical Magazine: 79: 941-947.
Siidra, O.I., Lukina, E.A., Nazarchuk, E.V., Depmeier, W., Bubnova, R.S., Agakhanov, A.A., Adontseva, E.Yu., Filatov, S.K., Kovrugin, V.M. (2018) Saranchinaite, Na2Cu(SO4)2, A New Exhalative Mineral from Tolbachik Volcano, Kamchatka, Russia, and a product of the Reversible Dehydration of Kröhnkite, Na2Cu(SO4)2(H2O)2. Mineralogical Magazine: 82: 257-274.

Internet Links for SaranchinaiteHide

Localities for SaranchinaiteHide

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)
Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Agakhanov, A.A., Avdontseva, E.Y., Kayukov, R.A., Vergasova, L.P., Filatov, S.K. and Karpov, G.A. (2015) Saranchinaite, IMA 2015-019. CNMNC Newsletter No. 26, August 2015, page 942; Mineralogical Magazine, 79, 941-947.
Mineral and/or Locality  
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