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Dietzeite

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About DietzeiteHide

Formula:
Ca2(IO3)2(CrO4) · H2O
Colour:
Golden yellow
Hardness:
Specific Gravity:
3.617 - 3.698
Crystal System:
Monoclinic
Name:
After August Dietze (-1893), Chilean chemist, who first described the species.
This page provides mineralogical data about Dietzeite.


Classification of DietzeiteHide

Approved, 'Grandfathered' (first described prior to 1959)
4.KD.05

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
K : Iodates: Trigonal [IO3] pyramids (mostly).
D : Iodates with additional anions, with H2O
Dana 7th ed.:
23.1.1.1
23.1.1.1

23 : COMPOUND IODATES
1 : Miscellaneous
29.5

29 : Iodates

Physical Properties of DietzeiteHide

Transparency:
Transparent
Colour:
Golden yellow
Streak:
Light yellow
Hardness:
3½ on Mohs scale
Cleavage:
Imperfect/Fair
On {100} incomplete.
Fracture:
Conchoidal
Density:
3.617 - 3.698 g/cm3 (Measured)    3.61 g/cm3 (Calculated)

Optical Data of DietzeiteHide

Type:
Biaxial (-)
RI values:
nα = 1.825 nβ = 1.842 nγ = 1.857
2V:
Measured: 86° , Calculated: 84°
Max Birefringence:
δ = 0.032
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
small

Chemical Properties of DietzeiteHide

Formula:
Ca2(IO3)2(CrO4) · H2O

Crystallography of DietzeiteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Cell Parameters:
a = 10.11 Å, b = 7.23 Å, c = 13.96 Å
β = 106.62°
Ratio:
a:b:c = 1.398 : 1 : 1.931
Unit Cell V:
977.78 ų (Calculated from Unit Cell)
Morphology:
Crystals tabular {100} and elongated [001]. Fibrous crusts; columnar.

Type Occurrence of DietzeiteHide

Synonyms of DietzeiteHide

Other Language Names for DietzeiteHide

Related Minerals - Nickel-Strunz GroupingHide

4.KD.10George-erickseniteNa6CaMg(IO3)6(CrO4)2 · 12H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

29.1SalesiteCu(IO3)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
29.2BellingeriteCu3(IO3)6 · 2H2OTric. 1 : P1
29.3LautariteCa(IO3)2Mon. 2/m : P21/b
29.4BrüggeniteCa(IO3)2 · H2OMon.
29.6SeeligeritePb3(IO3)OCl3Orth. mm2 : Cmm2
29.7SchwartzembergitePb5H2(IO2)O4Cl3Tet. 4/mmm (4/m 2/m 2/m) : I4/mmm
29.8HectorfloresiteNa9(SO4)4(IO3)Mon. 2/m : P21/b

Other InformationHide

Notes:
Slowly soluble in cold water, faster in hot water.
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 DietzeiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Dietze (1891) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 19: 449 (as Jodchromate).
Osann (1894) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 23: 588 (as Dietzeit).
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 68.
Gossner and Mussgnug (1930) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 75: 410.
Bandy (1937) American Mineralogist: 22: 929.
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 318-319.
Canadian Mineralogist (1993): 31: 313-319.

Internet Links for DietzeiteHide

Localities for DietzeiteHide

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.
Chile
 
  • Antofagasta Region
    • Antofagasta Province
USGS Bulletin 491
    • Morro Moreno
Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig (1894): 23: 588; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 319.
    • Tocopilla Province
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 319; Anthony, J.W., R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. V (2003).
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 646.
  • Tarapacá Region
    • El Tamarugal Province
American Mineralogist: 79: 1003-1008.
Mineral and/or Locality  
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