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Pharmazincite

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Formula:
KZnAsO4
Colour:
Colorless to white
Lustre:
Vitreous
Specific Gravity:
4.75 (Calculated)
Crystal System:
Hexagonal
Name:
Named for its chemical components.
Known synthetic analogue.


Hide all sections | Show all sections

Classification of PharmazinciteHide

Approved, Pending publication
Approval Year:
2014

Physical Properties of PharmazinciteHide

Vitreous
Transparency:
Transparent
Colour:
Colorless to white
Tenacity:
Brittle
Cleavage:
Perfect
parallel to [001].
Fracture:
Step-Like
Density:
4.75 g/cm3 (Calculated)

Optical Data of PharmazinciteHide

Type:
Uniaxial (-)
RI values:
nω = 1.649() nε = 1.642(2)
Max Birefringence:
δ = 0.007
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Pleochroism:
Non-pleochroic

Chemical Properties of PharmazinciteHide

Formula:
KZnAsO4

Crystallography of PharmazinciteHide

Crystal System:
Hexagonal
Class (H-M):
6 - Pyramidal
Space Group:
P63
Cell Parameters:
a = 18.501(4) Å, c = 8.7114(9) Å
Ratio:
a:c = 1 : 0.471
Unit Cell V:
2,582.31 ų (Calculated from Unit Cell)
Z:
24

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.36(28)
4.64(45)
4.35(48)
3.260(36)
3.179(100)
2.770(26)
2.676(77)
2.278(15)
Comments:
From Type Description.

Occurrences of PharmazinciteHide

Paragenetic Mode(s):
•  Fumarolic

Type Occurrence of PharmazinciteHide

General Appearance of Type Material:
prismatic to acicular crystals up to 1 mm long and up to 0.03 mm
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 4539/1
Geological Setting of Type Material:
fumarole, temperature at the time of collecting 360–380°C
Associated Minerals at Type Locality:

Synonyms of PharmazinciteHide

Other Language Names for PharmazinciteHide

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 PharmazinciteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Zubkova, N.V. and Sidorov, E.G. (2014) Pharmazincite, IMA 2014-015. CNMNC Newsletter No. 21, August 2014, page 798; Mineralogical Magazine, 78, 797-804.

Internet Links for PharmazinciteHide

Localities for PharmazinciteHide

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., Yapaskurt, V.O., Belakovskiy, D.I., Vigasina, M.F., Zubkova, N.V. and Sidorov, E.G. (2014) Pharmazincite, IMA 2014-015. CNMNC Newsletter No. 21, August 2014, page 798; Mineralogical Magazine, 78, 797-804.
Mineral and/or Locality  
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