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Achyrophanite

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Formula:
(K,Na)3(Fe3+,Ti,Al,Mg)5O2(AsO4)5
Crystal System:
Orthorhombic
New structure type. Chemically related especially to pansnerite, and also to edtollite and melanarsite.


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Classification of AchyrophaniteHide

Approved, Pending publication
Approval Year:
2018

Chemical Properties of AchyrophaniteHide

Formula:
(K,Na)3(Fe3+,Ti,Al,Mg)5O2(AsO4)5

Crystallography of AchyrophaniteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P2 2 21
Setting:
P2 2 21
Cell Parameters:
a = 6.5824(2) Å, b = 13.2488(4) Å, c = 10.7613(3) Å
Ratio:
a:b:c = 0.497 : 1 : 0.812
Unit Cell V:
938.48 ų (Calculated from Unit Cell)
Comment:
new structure type

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.615(59)
4.174(42)
3.669(31)
3.148(33)
2.852(43)
2.814(100)
2.689(29)
2.237(28)

Synonyms of AchyrophaniteHide

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 AchyrophaniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Belakovskiy, D.I., Vigasina, M.F., Agakhanov, A.A., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2018) Achyrophanite, IMA 2018-011. CNMNC Newsletter No 43, June 2018, page 783; Mineralogical Magazine: 82: 779-785.

Internet Links for AchyrophaniteHide

Localities for AchyrophaniteHide

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
 
  • Kamchatka Krai
    • Tolbachik volcano
      • Great Fissure eruption (Main Fracture)
        • Northern Breakthrough (North Breach)
          • Second scoria cone
Pekov, I.V., Zubkova, N.V., Koshlyakova, N.N., Belakovskiy, D.I., Vigasina, M.F., Agakhanov, A.A., Britvin, S.N., Turchkova, A.G., Sidorov, E.G. and Pushcharovsky, D.Y. (2018) Achyrophanite, IMA 2018-011. CNMNC Newsletter No 43, June 2018, page 783; Mineralogical Magazine: 82: 779-785.
Mineral and/or Locality  
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