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Hiärneite

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About HiärneiteHide

Urban Hjärne
Formula:
(Ca,Mn,Na)2(Zr,Mn3+)5(Sb,Ti,Fe)2O16
Colour:
red
Hardness:
7
Specific Gravity:
5.44 (Calculated)
Crystal System:
Tetragonal
Name:
Named after Urban Hiärne (20 December 1641 – 10 March 1724), a pioneer in Swedish geology.
This page provides mineralogical data about Hiärneite.


Classification of HiärneiteHide

Approved
4.DL.10

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
L : With large (+- medium-sized) cations; fluorite-type structures

Physical Properties of HiärneiteHide

Transparency:
Translucent
Colour:
red
Hardness:
Hardness:
VHN50=1254 kg/mm2 - Vickers
Cleavage:
None Observed
Fracture:
None observed
Density:
5.44(1) g/cm3 (Calculated)

Optical Data of HiärneiteHide

Type:
Uniaxial (+)
RI values:
nω = 2.120() nε = 2.160(2)
Birefringence:
weakly dichroic in orange and yellow-orange.
Max Birefringence:
δ = 0.040
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Type:
Anisotropic
Anisotropism:
weak
Colour in reflected light:
colourless to gray
Internal Reflections:
yellow

Chemical Properties of HiärneiteHide

Formula:
(Ca,Mn,Na)2(Zr,Mn3+)5(Sb,Ti,Fe)2O16
IMA Formula:
(Ca,Mn2+,Na)2(Zr,Mn3+)5(Sb,Ti,Fe)2O16

Crystallography of HiärneiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/acd
Setting:
I41/acd
Cell Parameters:
a = 15.264(1) Å, c = 10.089(2) Å
Ratio:
a:c = 1 : 0.661
Unit Cell V:
2,350.63 ų (Calculated from Unit Cell)
Z:
8

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
3.45 (40)
2.92(100)
2.539(60)
1.792(90)
1.534(80)

Type Occurrence of HiärneiteHide

General Appearance of Type Material:
single grains and in aggregates up to 0.5 mm wide. Individual crystals are subhedral, with a short-prismatic habit, and do not exceed 200 microns their greatest dimension.
Place of Conservation of Type Material:
Swedish Museum of Natural History, under the catalogue number 920766.
Geological Setting of Type Material:
skarn
Associated Minerals at Type Locality:

Synonyms of HiärneiteHide

Other Language Names for HiärneiteHide

Related Minerals - Nickel-Strunz GroupingHide

4.DL.05Cerianite-(Ce)(Ce4+,Th)O2Iso. m3m (4/m 3 2/m) : Fm3m
4.DL.05ThorianiteThO2Iso. m3m (4/m 3 2/m)
4.DL.05UraniniteUO2Iso. m3m (4/m 3 2/m) : Fm3m
4.DL.05Zirkelite(Ti,Ca,Zr)O2-xIso.
4.DL.05Aeschynite GroupAD2O6
4.DL.10CalzirtiteCaZr3TiO9Tet.
4.DL.10Tazheranite(Zr,Ti,Ca)O2-xIso.

Fluorescence of HiärneiteHide

Other InformationHide

Notes:
The mineral is insoluble in cold mineral acids
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 HiärneiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Holtstam, D. (1997) Hiärneite, a new, Zr-Sb oxide mineral isostructural with calzirtite, from Långban, Sweden. European Journal of Mineralogy: 9: 843-848.
Jambor, J.L. and Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 400-403.
Mineralogical Record: 29: 471.

Internet Links for HiärneiteHide

Localities for HiärneiteHide

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.
Sweden (TL)
 
  • Värmland
    • Filipstad
Holtstam, D. (1997) Hiärneite, a new, Zr-Sb oxide mineral isostructural with calzirtite, from Långban, Sweden. European Journal of Mineralogy: 9: 843-848.; Jambor, J.L. and Roberts, A.C. (1998) New mineral names. American Mineralogist: 83: 400-403.; Nysten, P., Holtstam, D., and Jonsson, E. (1999) The Långban minerals. In Långban - The mines, their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
Mineral and/or Locality  
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