Sarkinite
A valid IMA mineral species - grandfathered
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About Sarkinite
Formula:
Mn2+2(AsO4)(OH)
Colour:
Red, rose-red, reddish-yellow, yellow, pinkish; light rose or yellow in transmitted light
Lustre:
Greasy
Hardness:
4 - 5
Specific Gravity:
4.08 - 4.18
Crystal System:
Monoclinic
Member of:
Name:
Named in 1885 by Stens Anders Hjalmar Sjögren from the Greek σάρκινός, "sarkinos," for "made of flesh," alluding to its reddish color and greasy luster.
Dimorph of:
Isostructural with:
Unique Identifiers
Mindat ID:
3535
Long-form identifier:
mindat:1:1:3535:0
IMA Classification of Sarkinite
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Mn2+2As5+O4(OH)
Classification of Sarkinite
8.BB.15
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
B : With only medium-sized cations, (OH, etc.):RO4 about 1:1
41.6.3.3
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq
20.8.1
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
20 : Arsenates (also arsenates with phosphate, but without other anions)
8 : Arsenates of Mn
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 |
|---|---|---|
| Srk | 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 Sarkinite
Greasy
Colour:
Red, rose-red, reddish-yellow, yellow, pinkish; light rose or yellow in transmitted light
Streak:
Red to yellow
Hardness:
4 - 5 on Mohs scale
Cleavage:
Distinct/Good
On {100} distinct.
On {100} distinct.
Fracture:
Irregular/Uneven, Conchoidal
Density:
4.08 - 4.18 g/cm3 (Measured) 4.04 g/cm3 (Calculated)
Comment:
Measured values on Långban material.
Optical Data of Sarkinite
Type:
Biaxial (-)
RI values:
nα = 1.793 nβ = 1.807 nγ = 1.809
2V:
Measured: 83° , Calculated: 40°
Max. Birefringence:
δ = 0.016
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:
r > v or r < v
Optical Extinction:
Y = b; X ∧ c = –54°.
Pleochroism:
Weak
Comments:
Absorption: X > Z > Y.
Chemistry of Sarkinite
Mindat Formula:
Mn2+2(AsO4)(OH)
Element Weights:
Elements listed:
Crystallography of Sarkinite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 12.7795(13) Å, b = 13.6127(14) Å, c = 10.2188(11) Å
β = 108.834(2)°
β = 108.834(2)°
Ratio:
a:b:c = 0.939 : 1 : 0.751
Unit Cell V:
1,682.52 ų (Calculated from Unit Cell)
Z:
16
Morphology:
Crystals commonly thick tabular {100} and somewhat elongated [010]; also occurs as short prismatic [010] crystals, or shortened along this axis and tabular. {100} and {001} are often uneven and {001} is striated [100]. Aggregates into crudely spherical forms at times. Granular.
Comment:
For synthetic material.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0015650 | Sarkinite | Dal Negro A, Giuseppetti G, Pozas J M M (1974) The crystal structure of sarkinite, Mn2AsO4(OH) Tschermaks Mineralogische und Petrographische Mitteilungen 21 246-260 | 1974 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.0 Å | (30) |
| 3.48 Å | (80) |
| 3.29 Å | (90) |
| 3.18 Å | (100) |
| 3.04 Å | (100) |
| 2.90 Å | (70) |
| 2.65 Å | (60) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| High-? alteration and/or metamorphism | |
| 32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits | |
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) |
Type Occurrence of Sarkinite
Place of Conservation of Type Material:
Swedish Museum on Natural History, Stockholm, Sweden, number 85:0216.
Geological Setting of Type Material:
Metamorphosed Fe–Mn orebody.
Associated Minerals at Type Locality:
Synonyms of Sarkinite
Other Language Names for Sarkinite
Varieties of Sarkinite
| Xanthoarsenite | An Sb-bearing variety of sarkinite. Originally described from Sjö Mine, Grythyttan, Hällefors, Västmanland, Sweden. |
Relationship of Sarkinite to other Species
Member of:
Other Members of Wagnerite Group:
| Arsenowagnerite | Mg2(AsO4)F | Mon. 2/m : P21/b |
| Hydroxylwagnerite | Mg2(PO4)(OH) | Mon. 2/m : P21/b |
| Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O | Mon. 2/m |
| Stanĕkite | (Mn2+,Fe2+,Mg)Fe3+(PO4)O | Mon. 2/m : P21/b |
| Wagnerite | Mg2(PO4)F | Mon. 2/m : P21/b |
| 'Wagnerite-Arsenowagnerite Series' |
Common Associates
Associations Based on Photo Data:
| 11 photos of Sarkinite associated with Willemite | Zn2SiO4 |
| 11 photos of Sarkinite associated with Calcite | CaCO3 |
| 10 photos of Sarkinite associated with Caryopilite | Mn2+3Si2O5(OH)4 |
| 9 photos of Sarkinite associated with Franklinite | Zn2+Fe3+2O4 |
| 6 photos of Sarkinite associated with Sussexite | Mn2+BO2(OH) |
| 6 photos of Sarkinite associated with Brandtite | Ca2Mn2+(AsO4)2 · 2H2O |
| 5 photos of Sarkinite associated with Zincite | ZnO |
| 4 photos of Sarkinite associated with Andradite | Ca3Fe3+2(SiO4)3 |
| 4 photos of Sarkinite associated with Eveite | Mn2+2(AsO4)(OH) |
| 4 photos of Sarkinite associated with Kraisslite | Zn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16 |
Related Minerals - Strunz-mindat Grouping
| 8.BB. | Moabite | NiFe3+(PO4)O |
| 8.BB. | Tilasite | CaMg(AsO4)F |
| 8.BB. | Paulgrothite | Cu9Fe3+O4(PO4)4Cl3 |
| 8.BB. | Karlditmarite | Cu9O4(PO4)2(SO4)2 |
| 8.BB. | Milkovoite | Cu4O(PO4)(AsO4) |
| 8.BB.X | Arsenowagnerite | Mg2(AsO4)F |
| 8.BB.05 | Tavorite | LiFe3+(PO4)(OH) |
| 8.BB.05 | Amblygonite | LiAl(PO4)F |
| 8.BB.05 | Montebrasite | LiAl(PO4)(OH) |
| 8.BB.10 | Zwieselite | Fe2+2(PO4)F |
| 8.BB.10 | Triplite | Mn2+2(PO4)F |
| 8.BB.15 | 'Unnamed (Sb-analogue of Auriacusite)' | Fe3+Cu2+[(Sb,As)O4]O |
| 8.BB.15 | Joosteite | Mn2+(Mn3+,Fe3+)(PO4)O |
| 8.BB.15 | Hydroxylwagnerite | Mg2(PO4)(OH) |
| 8.BB.15 | Wagnerite | Mg2(PO4)F |
| 8.BB.15 | Stanĕkite | (Mn2+,Fe2+,Mg)Fe3+(PO4)O |
| 8.BB.15 | Triploidite | Mn2+2(PO4)(OH) |
| 8.BB.15 | Wolfeite | Fe2+2(PO4)(OH) |
| 8.BB.20 | Holtedahlite | Mg2(PO4)(OH) |
| 8.BB.20 | Satterlyite | (Fe2+,Mg,Fe)12(PO4)5(PO3OH)(OH,O)6 |
| 8.BB.25 | Althausite | Mg4(PO4)2(OH,O)(F,◻) |
| 8.BB.30 | Zincolivenite | CuZn(AsO4)(OH) |
| 8.BB.30 | Adamite | Zn2(AsO4)(OH) |
| 8.BB.30 | Libethenite | Cu2(PO4)(OH) |
| 8.BB.30 | Zincolibethenite | CuZn(PO4)(OH) |
| 8.BB.30 | Eveite | Mn2+2(AsO4)(OH) |
| 8.BB.30 | Olivenite | Cu2(AsO4)(OH) |
| 8.BB.30 | Auriacusite | Fe3+Cu2+(AsO4)O |
| 8.BB.35 | Paradamite | Zn2(AsO4)(OH) |
| 8.BB.35 | Tarbuttite | Zn2(PO4)(OH) |
| 8.BB.40 | Barbosalite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.40 | Scorzalite | Fe2+Al2(PO4)2(OH)2 |
| 8.BB.40 | Lazulite | MgAl2(PO4)2(OH)2 |
| 8.BB.40 | Meizhouite | Fe2+V3+2(PO4)2(OH)2 |
| 8.BB.40 | Hentschelite | CuFe3+2(PO4)2(OH)2 |
| 8.BB.40 | Wilhelmkleinite | ZnFe3+2(AsO4)2(OH)2 |
| 8.BB.45 | Dokuchaevite | Cu8O2(VO4)3Cl3 |
| 8.BB.45 | Trolleite | Al4(PO4)3(OH)3 |
| 8.BB.45 | Yaroshevskite | Cu9O2(VO4)4Cl2 |
| 8.BB.50 | Namibite | Cu(BiO)2(VO4)(OH) |
| 8.BB.50 | Aleutite | [Cu5O2](AsO4)(VO4) · (Cu,K,Pb,Rb,Cs,)Cl |
| 8.BB.52a | Ericlaxmanite | Cu4O(AsO4)2 |
| 8.BB.52b | Kozyrevskite | Cu4O(AsO4)2 |
| 8.BB.55 | Phosphoellenbergerite | (Mg,◻)2Mg12(PO4,PO3OH)6(PO3OH,CO3)2(OH)6 |
| 8.BB.55 | Popovite | Cu5O2(AsO4)2 |
| 8.BB.60 | Urusovite | CuAl(AsO4)O |
| 8.BB.65 | Theoparacelsite | Cu3(As2O7)(OH)2 |
| 8.BB.70 | Turanite | Cu5(VO4)2(OH)4 |
| 8.BB.75 | Stoiberite | Cu5(VO4)2O2 |
| 8.BB.80 | Fingerite | Cu11(VO4)6O2 |
| 8.BB.85 | Averievite | Cu6(VO4)2O2Cl2 |
| 8.BB.90 | Richellite | CaFe3+2(PO4)2(OH,F)2 |
| 8.BB.90 | Lipscombite | Fe2+Fe3+2(PO4)2(OH)2 |
| 8.BB.90 | Zinclipscombite | ZnFe3+2(PO4)2(OH)2 |
Other Information
Notes:
Readily soluble in dilute 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.
Internet Links for Sarkinite
mindat.org URL:
https://www.mindat.org/min-3535.html
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Please feel free to link to this page.
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References for Sarkinite
Reference List:
Dana, James D., Brush, George Jarvis (1868) A System of Mineralogy (5th ed.). p.882as Chondrarsenite
Sjögren, Anton (1885) Sarkinit, ett nytt manganarseniat frän Pajsbergs Jernoch mangan-malmsgrufva i Filipstads bergslag. Geologiska Föreningen i Stockholm Förhandlingar, 7 (13) 724-726 doi:10.1080/11035898509446153
Flink, Gust, Hamberg, Axel (1888) Om kristalliserad sarkinit (polyarsenit) från Harstigsgrufvan vid Pajsberg. Geologiska Föreningen i Stockholm Förhandlingar, 10 (5) 380-387 doi:10.1080/11035898809444217
Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. Bulletin 679. US Geological Survey doi:10.3133/b679 p.130
Larsen, E.S.; Berman, H. (1934) The microscopic determination of the nonopaque minerals. Bulletin of the US Geological Survey Vol. 848. US Geological Survey p.1-266. doi:10.3133/b848 p.201
Palache, Charles, Bauer, L. H., Berman, Harry (1938) Yeatmanite, a new mineral, and sarkinite from Franklin, New Jersey. American Mineralogist, 23 (8) 527-530
Richmond, Wallace E. (1940) Crystal chemistry of the phosphates, arsenates and vanadates of the type A2XO4(Z). American Mineralogist, 25 (7). 441-479 p.466
Dunn, Pete J. (1980) On the composition of some sarkinites. Mineralogical Magazine, 43 (329) 681 doi:10.1180/minmag.1980.043.329.22
Hålenius, U.; Westlund, E. (1996) A crystal field study of manganese in eveite and sarkinite. GFF, 118 (sup004). p.51. doi:10.1080/11035899609546331
Hålenius, Ulf, Westlund, Erika (1998) Manganese valency and the colour of the Mn2AsO4(OH) polymorphs eveite and sarkinite. Mineralogical Magazine, 62 (1) 113-119 doi:10.1180/002646198547503
Stock, N., Stucky, G. D., Cheetham, A. K. (2002) Synthesis and Characterization of the Synthetic Minerals Villyaellenite and Sarkinite, Mn5(AsO4)2(HAsO4)2 · 4H2O and Mn2(AsO4)(OH). Zeitschrift für anorganische und allgemeine Chemie, 628. 357-362 doi:10.1002/1521-3749(200202)628:2<357::aid-zaac357>3.0.co;2-v
Localities for Sarkinite
Showing 46 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.
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Harstigen Mine, Pajsberg, Persberg ore district, Filipstad, Värmland County, Sweden