Sarcopside
A valid IMA mineral species - grandfathered
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About Sarcopside
Formula:
Fe2+3(PO4)2
May contain minor Mn(II) and Mg replacing Fe.
Colour:
Gray-pink, red-brown, brown (slightly altered), blue, lavender, green; flesh-red in transmitted light, rarely white.
Lustre:
Resinous, Waxy, Greasy
Hardness:
4
Specific Gravity:
3.64 - 3.73
Crystal System:
Monoclinic
Member of:
Name:
Named in 1868 by Christian Friedrich Martin Websky from the Greek, σάρζ "sarka," for "flesh," plus οψις "opsis" for "view," alluding to the flesh-red color observed on fresh fracture surfaces.
Type Locality:
Isostructural with:
Ferrous iron analogue of chopinite.
Chemically related to graftonite.
Visit gemdat.org for gemological information about Sarcopside.
Chemically related to graftonite.
Visit gemdat.org for gemological information about Sarcopside.Unique Identifiers
Mindat ID:
3534
Long-form identifier:
mindat:1:1:3534:3
IMA Classification of Sarcopside
Approved, 'Grandfathered' (first described prior to 1959)
IMA Formula:
Fe2+3◻(PO4)2
First published:
1868
Classification of Sarcopside
8.AB.15
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
Dana 7th ed.:
38.1.3.1
38.3.1.1
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
19.12.34
19 : Phosphates
12 : Phosphates of Mn
19 : Phosphates
12 : Phosphates 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.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
Please only use the official IMA–CNMNC symbol. Older variants are listed for historical use only.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Sar | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
| Sar | The Canadian Mineralogist (2019) | The Canadian Mineralogist (2019) The Canadian Mineralogist list of symbols for rock- and ore-forming minerals (December 30, 2019). download |
Physical Properties of Sarcopside
Resinous, Waxy, Greasy
Transparency:
Translucent, Opaque
Comment:
Lustre also glistening
Colour:
Gray-pink, red-brown, brown (slightly altered), blue, lavender, green; flesh-red in transmitted light, rarely white.
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Distinct on a plane approximately perpendicular to the fibers, and another less distinct parallel to the fiber lenght (=[001] - ?).
Distinct on a plane approximately perpendicular to the fibers, and another less distinct parallel to the fiber lenght (=[001] - ?).
Fracture:
Splintery, Fibrous
Density:
3.64 - 3.73 g/cm3 (Measured) 3.94 g/cm3 (Calculated)
Comment:
Measured values are for New Hampshire and Silesian materials, respectively.
Optical Data of Sarcopside
Type:
Biaxial (-)
RI values:
nα = 1.670 - 1.676 nβ = 1.728 - 1.730 nγ = 1.730 - 1.734
2V:
Measured: 26° to 28°, Calculated: 20° to 28°
Birefringence:
0.060
Max. Birefringence:
δ = 0.058 - 0.060
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.
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.
Surface Relief:
Moderate
Dispersion:
r > v perceptible
Optical Extinction:
Z=b, X^c = 45°
Chemistry of Sarcopside
Mindat Formula:
Fe2+3(PO4)2
May contain minor Mn(II) and Mg replacing Fe.
May contain minor Mn(II) and Mg replacing Fe.
Element Weights:
Elements listed:
Crystallography of Sarcopside
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/b
Setting:
P21/a
Cell Parameters:
a = 10.437(22) Å, b = 4.768(9) Å, c = 6.026(8) Å
β = 90.00(15)°
β = 90.00(15)°
Ratio:
a:b:c = 2.189 : 1 : 1.264
Unit Cell V:
299.88 ų (Calculated from Unit Cell)
Z:
2
Morphology:
Irregular masses sometimes with a fibrous structure. May be configured into distorted six-sided plates (Silesia).
Twinning:
Polysynthetic on {001}, common.
Comment:
Pseudo-orthorhombic.
Crystal Structure
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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) |
|---|---|---|---|---|---|---|---|
| 0000956 | Sarcopside | Ericsson T, Nord A G (1984) Strong cation ordering in olivine-related (Ni,Fe)-sarcopsides: a combined Mossbauer, X-ray and neutron diffraction study neutron diffraction American Mineralogist 69 889-895 |  | 1984 | synthetic | 0 | 293 |
| 0000268 | Sarcopside | Moore P B (1972) Sarcopside: Its atomic arrangement American Mineralogist 57 24-35 | | 1972 | Bull Moose pegmatite, near Custer, South Dakota, USA | 0 | 293 |
| 0019809 | Sarcopside | Warner J K, Cheetham A K, Nord A G, Von Dreele R B, Yethiraj M (1992) Magnetic structure of iron(II) phosphate, sarcopside, Fe3(PO4)2 Journal of Materials Chemistry 2 191-196 | 1992 | synthetic | 0 | 59.7 | |
| 0019810 | Sarcopside | Warner J K, Cheetham A K, Nord A G, Von Dreele R B, Yethiraj M (1992) Magnetic structure of iron(II) phosphate, sarcopside, Fe3(PO4)2 Journal of Materials Chemistry 2 191-196 | 1992 | synthetic | 0 | 10.1 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.91 Å | (50) |
| 3.52 Å | (100) |
| 3.01 Å | (60) |
| 2.82 Å | (70) |
| 2.49 Å | (70) |
| 2.47 Å | (70) |
| 1.769 Å | (40) |
| 1.758 Å | (50) |
Comments:
ICDD 39-341
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 2: Planetesimal differentiation and alteration | 4.566-4.550 |
| 5 : Primary asteroid phases | 4.566–4.560 |
| 6 : Secondary asteroid phases | 4.566-4.560 |
| Stage 4b: Highly evolved igneous rocks | >3.0 |
| 34 : Complex granite pegmatites | |
| Stage 5: Initiation of plate tectonics | <3.5-2.5 |
| 40 : Regional metamorphism (greenschist, amphibolite, granulite facies) | |
| Stage 10a: Neoproterozoic oxygenation/terrestrial biosphere | <0.6 |
| 50 : Coal and/or oil shale minerals | <0.36 |
| Stage 10b: Anthropogenic minerals | <10 Ka |
| 54 : Coal and other mine fire minerals (see also #51 and #56) |
Geological Setting:
Pegmatite
Type Occurrence of Sarcopside
Geological Setting of Type Material:
Granite pegmatite
Associated Minerals at Type Locality:
Other Language Names for Sarcopside
Relationship of Sarcopside to other Species
Member of:
Other Members of Sarcopside Group:
| Chopinite | Mg3(PO4)2 | Mon. 2/m : P21/b |
| Zavalíaite | Mn2+3(PO4)2 | Mon. 2/m : P21/b |
Common Associates
Associations Based on Photo Data:
| 11 photos of Sarcopside associated with Graftonite | Fe2+Fe2+2(PO4)2 |
| 4 photos of Sarcopside associated with Muscovite | KAl2(AlSi3O10)(OH)2 |
| 3 photos of Sarcopside associated with Troilite | FeS |
| 2 photos of Sarcopside associated with Elaliite | (Fe2+8Fe3+)(PO4)O8 |
| 2 photos of Sarcopside associated with Native Iron | Fe |
| 2 photos of Sarcopside associated with Heterosite | Fe3+(PO4) |
| 2 photos of Sarcopside associated with Triphylite | LiFe2+PO4 |
| 2 photos of Sarcopside associated with 'Ferrohagendorfite' | NaCaFe2+Fe2+2(PO4)3 |
| 1 photo of Sarcopside associated with Wüstite | FeO |
| 1 photo of Sarcopside associated with Galileiite | Na3Fe2+Fe2+11(PO4)9 |
Related Minerals - Strunz-mindat Grouping
| 8.AB. | Kryzaite | Na4(MgCr)(PO4)3 |
| 8.AB. | Niasite | Ni2+4.5(AsO4)3 |
| 8.AB. | Johanngeorgenstadtite | Ni2+4.5(AsO4)3 |
| 8.AB. | Rodolicoite | Fe3+PO4 |
| 8.AB. | Karwowskiite | Ca9Mg(Fe2+0.5◻0.5)(PO4)7 |
| 8.AB. | Olsenite | KFe4(PO4)3 |
| 8.AB. | Borisenkoite | Cu3[(V,As)O4]2 |
| 8.AB.05 | Farringtonite | Mg3(PO4)2 |
| 8.AB.10 | Natrophilite | NaMn2+PO4 |
| 8.AB.10 | 'Sicklerite' | Li1-x(Mn3+xMn2+1-x)PO4 |
| 8.AB.10 | Simferite | LiMg(PO4) |
| 8.AB.10 | Heterosite | Fe3+(PO4) |
| 8.AB.10 | Lithiophilite | LiMn2+PO4 |
| 8.AB.10 | Karenwebberite | NaFe2+PO4 |
| 8.AB.10 | Triphylite | LiFe2+PO4 |
| 8.AB.10 | 'Ferrisicklerite' | Li1-x(Fe3+xFe2+1-x)PO4 |
| 8.AB.10 | Purpurite | Mn3+(PO4) |
| 8.AB.15 | Zavalíaite | Mn2+3(PO4)2 |
| 8.AB.15 | Chopinite | Mg3(PO4)2 |
| 8.AB.20 | Beusite | Mn2+Mn2+2 (PO4)2 |
| 8.AB.20 | Graftonite-(Ca) | CaFe2+2(PO4)2 |
| 8.AB.20 | Graftonite-(Mn) | MnFe2+2(PO4)2 |
| 8.AB.20 | Graftonite | Fe2+Fe2+2(PO4)2 |
| 8.AB.20 | Beusite-(Ca) | CaMn2+2(PO4)2 |
| 8.AB.25 | Xanthiosite | Ni3(AsO4)2 |
| 8.AB.30 | Lammerite | Cu3(AsO4)2 |
| 8.AB.30 | Paralammerite | Cu3(AsO4)2 |
| 8.AB.35 | Mcbirneyite | Cu3(VO4)2 |
| 8.AB.35 | Pseudolyonsite | Cu3(VO4)2 |
| 8.AB.35 | Stranskiite | Zn2Cu(AsO4)2 |
| 8.AB.40 | Michalskiite | Fe3+1.33Cu2+2(MgFe3+)2(VO4)6 |
| 8.AB.40 | Lyonsite | Cu3Fe4(VO4)6 |
Fluorescence of Sarcopside
Not fluorescent in UV
Other Information
Notes:
Alters superficially to vivianite + unidentified Fe-Mn phosphates.
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 Sarcopside
mindat.org URL:
https://www.mindat.org/min-3534.html
Please feel free to link to this page.
Please feel free to link to this page.
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External Links:
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References for Sarcopside
Reference List:
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.193
Richmond, Wallace E. (1940) Crystal chemistry of the phosphates, arsenates and vanadates of the type A2XO4(Z). American Mineralogist, 25 (7). 441-479
Peacor, Donald R., Garske, David (1964) Sarcopside from Deering and East Alstead, New Hampshire. American Mineralogist, 49 (7-8) 1149-1150
Hurlbut, Cornelius S. (1965) Detailed description of sarcopside from East Alstead, New Hampshire. American Mineralogist, 50 (10) 1698-1707
Peacor, Donald R. (1969) Triphylite-sarcopside-graftonite intergrowths from Custer, South Dakota. American Mineralogist, 54 (5-6) 969-972
Fransolet, André-Mathieu (1977) Intercroissances et inclusions dans les associations graftonite-sarcopside-triphylite. Bulletin de Minéralogie, 100 (3). 198-207 doi:10.3406/bulmi.1977.7137
Ericsson, Tore, Nord, Anders G. (1984) Strong cation ordering in olivine-related (Ni,Fe)-sarcopsides: a combined Mössbauer, X-ray and neutron diffraction study. American Mineralogist, 69 (9-10) 889-895
Localities for Sarcopside
Showing 77 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.
Africa | |
| V. V. Sharygin (2016) |
Antarctica | |
| Grew et al. (2010) |
Argentina | |
| Steele et al. (1991) |
Austria | |
| Arthofer (2005) |
Brazil | |
| Queiroz (2016) | |
| Cassedanne et al. (1982) |
| Cassedanne et al. (1981) |
| Amores et al. (2014) +1 other reference |
| Britvin et al. (2019) |
Canada | |
| Hawthorne et al. (2018) |
| Černý et al. (1998) +1 other reference |
China | |
| Lin et al. (2007) |
| Rubo Zhang (1995) | |
Czech Republic | |
| Povondra et al. (eds.) +1 other reference |
| Seifert +3 other references |
| Č +4 other references |
| Staněk (1991) +4 other references |
| Staněk (1997) | |
| Škoda et al. (2007) +1 other reference |
Europe | |
| Berbain et al. (2012) | |
Finland | |
| Alviola Reijo 1974. Selostus ... |
| Ilkka Mikkola collection |
France | |
| Kurat et al. (2005) |
| Inventaire Minéralogique de la France ... |
| Berbain et al. (2005) |
| Berbain et al. (2005) | |
| Berbain et al. (2012) | |
| Berbain et al. (2012) |
Germany | |
| web.archive.org (2001) |
Greenland | |
| Vereshchagin et al. (2024) |
Italy | |
| VIGNOLA et al. (2007) |
| Vignola P. et al. (2011) | |
| Vignola P. et al. (2010) +1 other reference |
| Vignola et al. (2018) |
Japan | |
| Matsubara et al. (1980) |
Mexico | |
| Olsen et al. (1966) |
| Meteoritics 28:415 (July, 1993) |
Namibia | |
| Förch (1998) |
| Keller (1991) |
| Fransolet et al. (1986) | |
Poland | |
| Pieczka A. et al. (2004) |
| Pieczka A. et al. (SW Poland, Lower Silesia, Góry Sowie Mts.) |
| Websky (1868) +2 other references |
| Pieczka et al. (2017) | |
| Barsch O. | |
Russia | |
| V. V. Sharygin (2016) +1 other reference |
| Sharygin (2016) |
Rwanda | |
| Fransolet et al. (1998) |
Somalia | |
| Ma et al. (2023) +1 other reference |
Spain | |
| Roda et al. (2001) |
| Roda et al. (2004) +1 other reference |
| Encarnación Roda-Robles (2007) +1 other reference | |
| Roda-Robles et al. (2012) |
| Bareche (2005) |
| & locality references +1 other reference | |
| NÚÑEZ-GARCÍA et al. (2012) |
Sweden | |
| Smeds et al. (1998) |
| Smeds et al. (1998) |
| Gustafsson et al. (1991) |
| Smeds et al. (1998) | |
| Wik et al. (2005) | |
| Smeds et al. (1998) | |
| Swedish Museum of Natural History (Naturarv database) |
| Smeds et al. (1998) |
| Smeds et al. (1998) |
Ukraine | |
| Lyzhachenko et al. (2019) |
| Britvin et al. (2020) |
USA | |
| |
| Peacor et al. (1964) +2 other references | |
| Moore (1973) |
| |
| Palache et al. (1951) +3 other references |
| Smith (2005) |
| Olsen et al. (1993) |
| Bild (1974) +1 other reference |
| Peacor (1969) +1 other reference |
| [MinRec 4:111 |
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Bull Moose Mine, Custer, Custer Mining District, Custer County, South Dakota, USA