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Iangreyite

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About IangreyiteHide

07042830014947312924608.jpg
Ian E. Grey
Formula:
Ca2Al7(PO4)2(PO3OH)2(OH,F)15 · 8H2O
Crystal System:
Trigonal
Name:
The mineral is named in honour of Dr Ian Edward Grey (b. 1944), formerly Chief Research Scientist at CSIRO Minerals, Melbourne, Australia, for his contributions to mineralogy, crystallography and the minerals-processing industry. Recently, Dr Grey’s expertise was key to solving a number of unique crystal-chemical problems related to alunite-supergroup members such as kolitschite, kintoreite and jarosite as well the structure of perhamite.
Visually similar to several alunite-type minerals (e.g., crandallite, plumbogummite), krásnoite and perhamite.


Classification of IangreyiteHide

Approved
Approval Year:
2010
8.DE.45

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
E : With only medium-sized cations, (OH, etc.):RO4 = 3:1
42.13.19.

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
13 : Miscellaneous

Chemical Properties of IangreyiteHide

Formula:
Ca2Al7(PO4)2(PO3OH)2(OH,F)15 · 8H2O

Crystallography of IangreyiteHide

Crystal System:
Trigonal
Class (H-M):
3 2 - Trapezohedral
Space Group:
P3 2 1
Setting:
P3 2 1
Cell Parameters:
a = 6.988(1) Å, c = 16.707(3) Å
Ratio:
a:c = 1 : 2.391
Unit Cell V:
706.54 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
16.739 Å(100)
6.054 Å(18)
5.687 Å(13)
3.488 Å(9)
2.967 Å(45)
2.219 Å(19)
1.896 Å(13)
1.744 Å(17)
Comments:
The powder diffraction pattern showed a close resemblance to that of perhamite.

Type Occurrence of IangreyiteHide

Synonyms of IangreyiteHide

Relationship of Iangreyite to other SpeciesHide

Structurally related to group(s):
Chemically related to group(s):

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Iangreyite associated with PlumbogummitePbAl3(PO4)(PO3OH)(OH)6

Related Minerals - Nickel-Strunz GroupingHide

8.DE.05SenegaliteAl2(PO4)(OH)(OH)2 · H2OOrth. mm2
8.DE.10FluelliteAl2(PO4)F2(OH) · 7H2OOrth. mmm (2/m 2/m 2/m) : Fddd
8.DE.15BulachiteAl2(AsO4)(OH)3 · 3H2OOrth.
8.DE.20ZapataliteCu3Al4(PO4)3(OH)9 · 4H2OTet.
8.DE.25CeruleiteCu2Al7(AsO4)4(OH)13 · 11.5H2OTric.
8.DE.35AldermaniteMg5Al12(PO4)8(OH)22 · 32H2OOrth.
8.DE.40Juanitaite(Cu,Ca,Fe)10Bi(AsO4)4(OH)11 · 2H2OTet. 4/mmm (4/m 2/m 2/m) : P42/nnm

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 IangreyiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sejkora, J., Škoda, R. and Ondruš, P. (2006) New naturally occurring mineral phases from the Krásno-Horní Slavkov area, western Bohemia, Czech Republic. Journal of the Czech Geological Society, 51, 159–187.
Mills, S.J., Kampf, A.R., Sejkora, J., Adams, P.M., Birch, W.D., Plášil, J. (2011): Iangreyite: a new secondary phosphate mineral closely related to perhamite. Mineralogical Magazine, 75, 327-336.

Internet Links for IangreyiteHide

Localities for IangreyiteHide

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.
Czech Republic (TL)
 
  • Karlovy Vary Region
    • Sokolov District
      • Horní Slavkov
        • Krásno (Schönfeld)
IMA Approvals - Feb. 2010; Mills, S.J., Kampf, A.R., Sejkora, J., Adams, P.M., Birch, W.D., Plášil, J. (2011): Iangreyite: a new secondary phosphate mineral closely related to perhamite. Mineralogical Magazine, 75, 327-336.
Norway
 
  • Østfold
    • Halden
      • Idd
        • Aspedammen
Larsen, K.E. & Nordrum, F.S. (2013): Noen funn av mineraler i Norge 2012-2013. Norsk Bergverksmuseum Skrift. 50, 111-117; Kristiansen, R. (2014): Nye mineralfunn fra Herrebøkasa, Aspedammen, Østfold. Stein- 41 (3),30-33
USA (TL)
 
  • Nevada
    • Humboldt Co.
      • Iron Point Mining District
        • Valmy
Mills, S.J., Kampf, A.R., Sejkora, J., Adams, P.M., Birch, W.D., Plášil, J. (2011): Iangreyite: a new secondary phosphate mineral closely related to perhamite. Mineralogical Magazine, 75, 327-336.
  • Utah
    • Box Elder Co.
      • Pilot Range
        • Lucin Mining District
          • Lucin
            • Utahlite Hill
Erik Vercammen collection
 
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