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Alterite

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About AlteriteHide

Malcolm Alter
Formula:
Zn2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2O
Colour:
Yellow-green
Lustre:
Vitreous
Crystal System:
Monoclinic
Name:
Named in honor of long term Arizona field collector Malcolm Alter.
Found "near Marble Canyon". The 23rd oxalate species, first natural Zn oxalate mineral to date.

Second natural Fe-Zn-S-C mineral, and fourth double salt of oxalic and another acid.

New structure type.


Classification of AlteriteHide

Approved, Pending publication
Approval Year:
2018

Physical Properties of AlteriteHide

Vitreous
Transparency:
Transparent
Colour:
Yellow-green

Chemical Properties of AlteriteHide

Formula:
Zn2Fe3+4(SO4)4(C2O4)2(OH)4 · 17H2O

Crystallography of AlteriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Setting:
C2/c
Cell Parameters:
a = 16.7696(5) Å, b = 9.4020(2) Å, c = 25.3466(8) Å
β = 108.252(1)°
Ratio:
a:b:c = 1.784 : 1 : 2.696
Unit Cell V:
3,795.28 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.848(100)
4.589(36)
4.363(46)
4.189(57)
4.127(50)
3.898(39)
3.701(80)
2.663(46)

Type Occurrence of AlteriteHide

Synonyms of AlteriteHide

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 AlteriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Yang, H., Gibbs, R.B., Evans, S.H., Downs, R.T. and Jabrin, Z. (2018) Alterite, IMA 2018-070. CNMNC Newsletter No. 45, October 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.

Internet Links for AlteriteHide

Localities for AlteriteHide

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.
USA (TL)
 
  • Arizona
    • Coconino Co.
http://rruff.info/alterite/display=default/; Yang, H., Gibbs, R.B., Evans, S.H., Downs, R.T. and Jabrin, Z. (2018) Alterite, IMA 2018-070. CNMNC Newsletter No. 45, October 2018, page xxx; Mineralogical Magazine, 82, xxx-xxx.
Mineral and/or Locality  
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