Donate now to keep mindat.org alive!Help mindat.org|Log In|Register|
Home PageMindat NewsThe Mindat ManualHistory of MindatCopyright StatusManagement TeamContact UsAdvertise on Mindat
Donate to MindatSponsor a PageSponsored PagesTop Available PagesMindat AdvertisersAdvertise on Mindat
The most common minerals on earthMineral PhotographyThe Elements and their Minerals
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralSearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
StatisticsThe ElementsMember ListBooks & MagazinesMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice Settings
Photo SearchPhoto GalleriesNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day Gallery

Parascorodite

This page is currently not sponsored. Click here to sponsor this page.
Formula:
FeAsO4 · 2H2O
Colour:
White
Lustre:
Vitreous
Hardness:
1 - 2
Specific Gravity:
3.358 (Calculated)
Crystal System:
Trigonal
Name:
From the Greek "para," for "near," and Scorodite, with which it has a dimorphic relationship.
Dimorph of:
The trigonal dimorph of Scorodite. Compare 'UM1979-03-AsO:Fe' and 'UM1979-04-AsO:Fe'.


Hide all sections | Show all sections

Classification of ParascoroditeHide

Approved
Approval Year:
1996
8.CD.15

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
D : With only medium-sized cations, RO4:H2O = 1:2

Physical Properties of ParascoroditeHide

Vitreous
Colour:
White
Streak:
Yellowish white
Hardness:
1 - 2 on Mohs scale
Density:
3.358 g/cm3 (Calculated)

Optical Data of ParascoroditeHide

Type:
Uniaxial (+/-)
RI values:
nα = 1.720 nβ = 1.720
Max Birefringence:
δ = 1.720
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High

Chemical Properties of ParascoroditeHide

Formula:
FeAsO4 · 2H2O
IMA Formula:
Fe3+AsO4 · 2H2O

Crystallography of ParascoroditeHide

Crystal System:
Trigonal
Cell Parameters:
a = 8.9232 Å, c = 9.296 Å
Ratio:
a:c = 1 : 1.042
Unit Cell V:
687.71 ų
Z:
6

Type Occurrence of ParascoroditeHide

Synonyms of ParascoroditeHide

Other Language Names for ParascoroditeHide

Related Minerals - Nickel-Strunz GroupingHide

8.CD.CastellaroiteMn2+3(AsO4)2·4H2OMon. 2/m
8.CD.05KolbeckiteScPO4 · 2H2OMon. 2/m
8.CD.05MetavarisciteAlPO4 · 2H2OMon. 2/m : P21/b
8.CD.05PhosphosideriteFePO4 · 2H2OMon. 2/m
8.CD.05UM2005-02-AsO:AlHPScSiScAsO4 · 2H2O
8.CD.10MansfielditeAlAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.10ScoroditeFe3+AsO4 · 2H2OOrth. mmm (2/m 2/m 2/m)
8.CD.10StrengiteFePO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.10VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.10YanomamiteInAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.20Ludlamite(Fe,Mn,Mg)3(PO4)2 · 4H2OMon. 2/m : P21/b
8.CD.25SterlinghilliteMn3(AsO4)2 · 4H2OTric. 1 : P1
8.CD.30RollanditeCu3(AsO4)2 · 4H2OOrth.

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 ParascoroditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist (1999): 84: 1439-1444.
Perchiazzi, N., Ondruš, P., Skála, R. (2004): Ab-initio X-ray powder structure determination of parascorodite, Fe(H2O)AsO4. European Journal of Mineralogy 16, 1003-1007.

Internet Links for ParascoroditeHide

Localities for ParascoroditeHide

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)
 
  • Bohemia (Böhmen; Boehmen)
    • Central Bohemia Region
      • Kutná Hora (Kuttenberg)
AmMin 84:1439-1444; Dobešová, B. (2012). Halda Kaňk: hydrogeochemie pórových vod. Masters Thesis MASARYKOVA UNIVERZITA
    • Karlovy Vary Region
      • Krušné Hory Mts (Erzgebirge)
        • Jáchymov District (St Joachimsthal)
          • Jáchymov (St Joachimsthal)
Lapis 2002(7/8), 62
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Kolitsch, U., Rieck, B., Brandstätter, F., Schreiber, F., Fabritz, K. H., Blaß, G. & Gröbner, J. (2014): Neufunde aus dem altem Bergbau und den Schlacken von Lavrion (I). Mineralien-Welt 25 (1), 60-75 (in German). [identification announced; no description given yet]
Mineral and/or Locality  
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2017, except where stated. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us Current server date and time: November 24, 2017 03:52:39 Page generated: October 21, 2017 23:26:28
Go to top of page