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Långbanshyttanite
A valid IMA mineral species
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About Långbanshyttanite
Formula:
Pb2Mn2Mg(AsO4)2(OH)4 · 6H2O
Colour:
Colourless
Lustre:
Vitreous
Specific Gravity:
3.951 (Calculated)
Crystal System:
Triclinic
Name:
For the old name of the mine, smelter and mining village: Långbanshyttan.
This page provides mineralogical data about Långbanshyttanite.
Name Encoding
ASCII-7:
Langbanshyttanite
Unique Identifiers
Mindat ID:
41130
Long-form identifier:
mindat:1:1:41130:9
IMA Classification of Långbanshyttanite
Approved
IMA Formula:
[Mg(H2O)6]Pb2+2Mn2+2(As5+O4)2(OH)4
Approval year:
2010
First published:
2011
Type description reference:
Chukanov, Nikita V., Pekov, Igor V., Jonsson, Erik, Zubkova, Natalia V., Filinchuk, Yaroslav E., Belakovskiy, Dmitriy I., Pushcharovsky, Dmitry Y.U. (2011) Långbanshyttanite, a new low-temperature arsenate mineral with a novel structure from Långban, Sweden. European Journal of Mineralogy, 23 (4) 675-681 doi:10.1127/0935-1221/2011/0023-2120
Classification of Långbanshyttanite
8.DL.30
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Lbs | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of Långbanshyttanite
Vitreous
Transparency:
Transparent
Colour:
Colourless
Streak:
White
Tenacity:
Brittle
Cleavage:
Perfect
On (001)
On (001)
Density:
3.951 g/cm3 (Calculated)
Optical Data of Långbanshyttanite
Type:
Biaxial (+)
RI values:
nα = 1.700(5) nβ = 1.741(5) nγ = 1.792(5)
2V:
Measured: ~90° , Calculated: 86°
Max. Birefringence:
δ = 0.092
Based on recorded range of RI values above.
Based on recorded range of RI values above.
Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.
Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.
Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.
Surface Relief:
Very High (positive)
Relative to Canada balsam mounting medium (n ≈ 1.537).
Relative to Canada balsam mounting medium (n ≈ 1.537).
This shows the grain boundary and Becke line effect under plane-polarised
light, based on the contrast between this mineral's average refractive
index and the mounting medium. It does not take into account mineral
colouration.
In focus
Interference Figure:
This shows the idealized biaxial acute bisectrix (Bxa) interference figure
- the conoscopic view for a grain cut perpendicular to the acute bisectrix, using
this mineral's 2V. The two small white dots mark the melatopes - the points
where the two optic axes emerge - and are shown only when they fall within the
field of view. The coloured bands are isochromatics, and the dark bands are
isogyres.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Rotate the stage: at 0°/90° the isogyres form a cross through the melatopes; at 45° they pull apart into curved hyperbolas. That splitting on rotation - absent in a uniaxial figure - is the standard diagnostic test for telling biaxial minerals from uniaxial ones. If 2V is large, the melatopes may fall outside the field of view, as they often do at the microscope too.
Dispersion:
Strong, r < v.
Pleochroism:
Non-pleochroic
Comments:
Orientation: X ≈ c, the angle between Z and elongation direction is 16°.
Chemistry of Långbanshyttanite
Mindat Formula:
Pb2Mn2Mg(AsO4)2(OH)4 · 6H2O
Element Weights:
Crystallography of Långbanshyttanite
Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Space Group:
P1
Cell Parameters:
a = 5.0528(10) Å, b = 5.7671(6) Å, c = 14.617(3) Å
α = 85.656(14)°, β = 82.029(17)°, γ = 88.728(13)°
α = 85.656(14)°, β = 82.029(17)°, γ = 88.728(13)°
Ratio:
a:b:c = 0.876 : 1 : 2.535
Unit Cell V:
420.6 ų
Z:
1
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 14.48 Å | (100) |
| 7.21 Å | (43) |
| 4.969 Å | (34) |
| 4.798 Å | (28) |
| 3.571 Å | (54) |
| 2.857 Å | (45) |
| 2.800 Å | (34) |
Reference:
Chukanov, Nikita V., Pekov, Igor V., Jonsson, Erik, Zubkova, Natalia V., Filinchuk, Yaroslav E., Belakovskiy, Dmitriy I., Pushcharovsky, Dmitry Y.U. (2011) Långbanshyttanite, a new low-temperature arsenate mineral with a novel structure from Långban, Sweden. European Journal of Mineralogy, 23 (4) 675-681 doi:10.1127/0935-1221/2011/0023-2120
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47a : [Near-surface hydration of prior minerals] | |
| 47d : [Arsenates, antimonates, selenates, bismuthinates] |
Type Occurrence of Långbanshyttanite
General Appearance of Type Material:
Unoriented, felty to distinctly radial, hemispherical white aggregates up to 1 mm in size composed of acicular, lath-like crystals.
Place of Conservation of Type Material:
Fersman Mineralogical Museum of the Russian Academy of Sciences, Moscow, Russia, registration number 4032/1.
Swedish Museum of Natural History, Stockholm, Sweden, catalog number NRM 20100076.
Swedish Museum of Natural History, Stockholm, Sweden, catalog number NRM 20100076.
Geological Setting of Type Material:
Crystallized during the last stage of hydrothermal activity involving metal remobilization, and post-dating regional metamorphism of the volcanic-hydrothermal ores and their host rocks. It formed in fractures and corrosion veinlets, post-dating calcite, in a Mn-oxide-bearing, Mn-silicate-rich rock. A very late, low-temperature (prob below 70 °C) species.
Associated Minerals at Type Locality:
Reference:
Chukanov, Nikita V., Pekov, Igor V., Jonsson, Erik, Zubkova, Natalia V., Filinchuk, Yaroslav E., Belakovskiy, Dmitriy I., Pushcharovsky, Dmitry Y.U. (2011) Långbanshyttanite, a new low-temperature arsenate mineral with a novel structure from Långban, Sweden. European Journal of Mineralogy, 23 (4) 675-681 doi:10.1127/0935-1221/2011/0023-2120
Synonyms of Långbanshyttanite
Other Language Names for Långbanshyttanite
Dutch:Långbanshyttaniet
German:Långbanshyttanit
Common Associates
Associations Based on Photo Data:
| 1 photo of Långbanshyttanite associated with Antigorite | Mg3(Si2O5)(OH)4 |
| 1 photo of Långbanshyttanite associated with Manganohörnesite | Mn2+3(AsO4)2 · 8H2O |
| 1 photo of Långbanshyttanite associated with Akrochordite | MnMn2Mn2(AsO4)2(OH)4(H2O)4 |
Related Minerals - Strunz-mindat Grouping
| 8.DL.05 | Foggite | CaAl(PO4)(OH)2 · H2O |
| 8.DL.10 | Fluorowardite | NaAl3(PO4)2F2(OH)2(H2O)2 |
| 8.DL.10 | Wardite | NaAl3(PO4)2(OH)4 · 2H2O |
| 8.DL.10 | Millisite | (Na,K)CaAl6(PO4)4(OH)9 · 3H2O |
| 8.DL.10 | Cyrilovite | NaFe3+3(PO4)2(OH)4 · 2H2O |
| 8.DL.15 | Petersite-(Ce) | CeCu6(PO4)3(OH)6 · 3H2O |
| 8.DL.15 | Agardite-(Nd) | NdCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Agardite-(Y) | YCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Agardite-(Ce) | CeCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | 'Agardite-(Dy)' | (Dy,La)Cu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Agardite-(La) | LaCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Petersite-(Y) | YCu6(PO4)3(OH)6 · 3H2O |
| 8.DL.15 | Zálesíite | CaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O |
| 8.DL.15 | Mixite | BiCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Petersite-(La) | LaCu6(PO4)3(OH)6 · 3H2O |
| 8.DL.15 | Goudeyite | AlCu6(AsO4)3(OH)6 · 3H2O |
| 8.DL.15 | Calciopetersite | CaCu6(PO4)2(PO3OH)(OH)6 · 3H2O |
| 8.DL.15 | Plumboagardite | PbCu6(AsO4)2(AsO3OH)(OH)6 · 3H2O |
| 8.DL.20 | Dugganite | Pb3Zn3(AsO4)2(TeO6) |
| 8.DL.20 | Wallkilldellite | Ca2Mn2+3(AsO4)2(OH)4 · 9H2O |
| 8.DL.20 | Wallkilldellite-(Fe) | (Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2O |
| 8.DL.20 | Cheremnykhite | Pb3Zn3(VO4)2(TeO6) |
| 8.DL.20 | Kuksite | Pb3Zn3(PO4)2(TeO6) |
| 8.DL.25 | Angastonite | CaMgAl2(PO4)2(OH)4 · 7H2O |
Fluorescence of Långbanshyttanite
Not fluorescent
Other Information
Notes:
In dilute HCl, rapidly decomposes to a white mass, with generation of a few small gas bubbles.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Långbanshyttanite
mindat.org URL:
https://www.mindat.org/min-41130.html
Please feel free to link to this page.
Please feel free to link to this page.
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Mineral Dealers:
References for Långbanshyttanite
Reference List:
Chukanov, Nikita V., Pekov, Igor V., Jonsson, Erik, Zubkova, Natalia V., Filinchuk, Yaroslav E., Belakovskiy, Dmitriy I., Pushcharovsky, Dmitry Y.U. (2011) Långbanshyttanite, a new low-temperature arsenate mineral with a novel structure from Långban, Sweden. European Journal of Mineralogy, 23 (4) 675-681 doi:10.1127/0935-1221/2011/0023-2120
Localities for Långbanshyttanite
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and 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).
All localities listed without proper references should be considered as questionable.
Sweden (TL) | |
| Chukanov et al. (2011) +1 other reference |
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Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden