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Belousovite

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Formula:
KZn(SO4)Cl
Colour:
Colorless
Lustre:
Vitreous
Specific Gravity:
2. 89 (Calculated)
Crystal System:
Monoclinic
Name:
Named in honor of Dr. Alexander Borisovich Belousov (Александр Борисович Белоусов) (b. 1962), Institute of Volcanology, Russian Academy of Sciences, Petropavlovsk-Kamchatskiy, Kamchatka, Russia, in recognition of his contributions to volcanology.
New structure type. Unique combination of elements. Possibly the Zn analogue of 'anhydrokainite'.

Compare 'Unnamed (Potassium Zinc Sulfate Chloride)'.


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Classification of BelousoviteHide

Approved
Approval Year:
2016
First Published:
2018

Physical Properties of BelousoviteHide

Vitreous
Transparency:
Transparent, Translucent
Colour:
Colorless
Streak:
White
Tenacity:
Brittle
Cleavage:
Perfect
(100)
Fracture:
Irregular/Uneven
Density:
2. 89 g/cm3 (Calculated)

Optical Data of BelousoviteHide

Type:
Biaxial (+)
RI values:
nα = 1.532(2) nβ = 1.544(2) nγ = 1.570(2)
2V:
Calculated: 69 . 4°
Max Birefringence:
δ = 0.038
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Pleochroism:
Non-pleochroic

Chemical Properties of BelousoviteHide

Formula:
KZn(SO4)Cl

Crystallography of BelousoviteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/c
Cell Parameters:
a = 6.8904(5) Å, b = 9.6115(7) Å, c = 8.2144(6) Å
β = 96.582(2)°
Ratio:
a:b:c = 0.717 : 1 : 0.855
Unit Cell V:
540.43 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.845(100)
3.640(71)
3.159(84)
3.122(41)
3.114(52)
2.981(41)
2.912(44)
2.068(19)

Type Occurrence of BelousoviteHide

General Appearance of Type Material:
Irregularly-shaped grains and in the form of microcrystalline masses
Place of Conservation of Type Material:
Collections of the Mineralogical Museum, Department of Mineralogy, St. Petersburg State University, Russia (specimen number 19651)
Empirical Formula of Type Material:
K0.97Rb0.01Zn1.00S1.01O4.03Cl0.97
Chemical Analysis of Type Material:
K2O19.55 %
Rb2O0.58 %
ZnO34.85 %
SO334.65 %
Cl14.77 %
–O = Cl2-3.34 %
Total:101.06 %
Associated Minerals at Type Locality:
Reference:
Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Zaitsev, A.N., Shilovskikh, V.V. (2018) Belousovite, KZn(SO4)Cl, a new sulphate mineral from the Tolbachik volcano with apophyllite sheet-topology. Mineralogical Magazine: 82: 1079-1088.

Synonyms of BelousoviteHide

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 BelousoviteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Siidra, O.I., Nazarchuk, E.V., Zaitsev, A.N., Lukina, E.A., Kayukov, R.A., Vergasova, L.P., Filatov, S.K., Karpov, G.A., Shilovskikh, V.V. (2016) Belousovite, IMA 2016-047. CNMNC Newsletter No. 33, October 2016, page 1139. Mineralogical Magazine: 80: 1135–1144.
Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Zaitsev, A.N., Shilovskikh, V.V. (2018) Belousovite, KZn(SO4)Cl, a new sulphate mineral from the Tolbachik volcano with apophyllite sheet-topology. Mineralogical Magazine: 82: 1079-1088.

Internet Links for BelousoviteHide

Localities for BelousoviteHide

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
Siidra, O.I., Nazarchuk, E.V., Zaitsev, A.N., Lukina, E.A., Kayukov, R.A., Vergasova, L.P., Filatov, S.K., Karpov, G.A. and Shilovskikh, V.V. (2016) Belousovite, IMA 2016-047. CNMNC Newsletter No. 33, October 2016, page 1139; Mineralogical Magazine, 80, 1135–1144; Siidra, O.I., Nazarchuk, E.V., Lukina, E.A., Zaitsev, A.N., Shilovskikh, V.V. (2018): Belousovite, KZn(SO4)Cl, a new sulphate mineral from the Tolbachik volcano with apophyllite sheet-topology. Mineralogical Magazine: 82: 1079-1088.
Mineral and/or Locality  
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