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Znamenskyite

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About ZnamenskyiteHide

Formula:
Pb4In2Bi4S13
Colour:
Lead-grey
Lustre:
Metallic
Specific Gravity:
6.504 (Calculated)
Crystal System:
Orthorhombic
Name:
Named in honor of Vladimir Sergeevich Znamensky (1939–2002), Russian geologist who studied the geology and mineral deposits of the Kurile Islands. He was among first to conduct mineralogical research at the Kurdiavy volcano.
Known synthetic analogue.


Classification of ZnamenskyiteHide

Approved, Pending publication
Approval Year:
2014

Physical Properties of ZnamenskyiteHide

Metallic
Colour:
Lead-grey
Streak:
Black
Hardness:
VHN10=110 kg/mm2 - Vickers
Tenacity:
Very brittle
Fracture:
Irregular/Uneven, Hackly
Density:
6.504 g/cm3 (Calculated)

Optical Data of ZnamenskyiteHide

Type:
Isotropic
Bireflectance:
None
Reflectivity:
470nmR1=38.4%R2= 35.6%
546nmR1=38.3%R2= 36.2%
589nmR1=37.1%R2= 35.4%
650nmR1=36.6%R2= 35.2%

Reflectance graph
Graph shows reflectance levels at different wavelengths (in nm). Top of box is 100%. Peak reflectance is 38.4%.
R1 shown in black, R2 shown in red

Chemical Properties of ZnamenskyiteHide

Formula:
Pb4In2Bi4S13

Crystallography of ZnamenskyiteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbam
Setting:
Pbam
Cell Parameters:
a = 21.331(4) Å, b = 26.435(5) Å, c = 4.006(1) Å
Ratio:
a:b:c = 0.807 : 1 : 0.152
Unit Cell V:
2258.92 ų
Z:
4

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.98Å(70)
3.56Å(60)
3.37Å(80)
3.239Å(40)
2.936Å(40)
2.743Å(100)
2.008Å(50)
1.719Å(30)
Comments:
From Type Description.

Type Occurrence of ZnamenskyiteHide

General Appearance of Type Material:
Druse-like aggregates of elongated slender plates to 0.4 mm long and 0.05 mm across, usually striated along elongation and easily split to needles. Box-shaped skeletal crystals are also ommon.
Place of Conservation of Type Material:
Type material is deposited in the collections of the Fersman Mineralogical Museum of the Russian Academy of Science, Moscow, Russia, registration number 4558/1
Geological Setting of Type Material:
High temperature fumarole

Synonyms of ZnamenskyiteHide

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 ZnamenskyiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Chaplygin, I.V., Mozgova, N.N., Bryzgalov, I.A. Belakovsky, D.I., Pervukhina, N.V., Borisov, S.V. and Magarill, S.A. (2014) Znamenskyite, IMA 2014-026. CNMNC Newsletter No. 21, August 2014, page 801. Mineralogical Magazine: 78: 797-804.
Chaplygin, I.V., Mozgova, N.N., Bryzgalov, I.A. Belakovsky, D.I., Pervukhina, N.V., Borisov, S.V. and Magarill, S.A. (2015) Znamenskyite, Pb4In2Bi4S13 – A new mineral species from fumaroles of Kudriavy volcano, Iturup Isl., Kuriles. XII International Conference - New Ideas in Earth Sciences: 62-63.

Internet Links for ZnamenskyiteHide

Localities for ZnamenskyiteHide

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)
 
  • Sakhalin Oblast
    • Kuril Islands (Kurile Islands)
      • Iturup Island
Chaplygin, I.V., Mozgova, N.N., Bryzgalov, I.A. Belakovsky, D.I., Pervukhina, N.V., Borisov, S.V. and Magarill, S.A. (2014) Znamenskyite, IMA 2014-026. CNMNC Newsletter No. 21, August 2014, page 801; Mineralogical Magazine, 78, 797-804.
 
Mineral and/or Locality  
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