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|System:||Monoclinic||Colour:||Colourless (fresh), ...|
|Name:||From Greek, σάρζ "sarka," for "flesh," plus οψις "opsism" for "view," alluding to the flesh-red color observed on fresh fracture surfaces.|
Ferrous iron analogue of Chopinite.
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Classification of Sarcopside
|IMA status:||Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"|
|Strunz 8th edition ID:||7/A.04-10|
|Nickel-Strunz 10th (pending) edition ID:||8.AB.15|
8 : PHOSPHATES, ARSENATES, VANADATES
A : Phosphates, etc. without additional anions, without H2O
B : With medium-sized cations
|Dana 7th edition ID:||18.104.22.168|
|Dana 8th edition ID:||22.214.171.124|
38 : ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
3 : (AB)3(XO4)2
|Hey's CIM Ref.:||19.12.34|
19 : Phosphates
12 : Phosphates of Mn
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Type Occurrence of Sarcopside
|Type Locality:||Michałkowa (Michelsdorf), Sowie Mts, Sudetes Mts, Lower Silesia (Dolnośląskie), Poland|
|Year of Discovery:||1868|
|Geological Setting of type material:||Pegmatite|
|Associated Minerals at type locality:|
Occurrences of Sarcopside
Physical Properties of Sarcopside
|Comment:||Lustre also glistening|
|Colour:||Colourless (fresh), gray-pink,, red-brown, brown (slightly altered), blue, lavender, green; flesh-red in transmitted light.|
Distinct on a plane approximately perpendicular to the fibers, and another less distinct parallel to the fiber lenght (= - ?).
|Density (measured):||3.64 - 3.73 g/cm3|
|Comment:||Measured values are for New Hampshire and Silesian materials, respectively.|
Crystallography of Sarcopside
|Cell Parameters:||a = 10.44Å, b = 4.78Å, c = 6.02Å|
β = 90.98°
|Ratio:||a:b:c = 2.184 : 1 : 1.259|
|Unit Cell Volume:||V 300.37 Å³ (Calculated from Unit Cell)|
|Morphology:||Irregular masses with a fibrous structure. May be configured into distorted six-sided plates (Silesia).|
Optical Data of Sarcopside
|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°|
|Maximum Birefringence:||δ = 0.060|
Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
|Dispersion:||r > v perceptible|
Chemical Properties of Sarcopside
|Essential elements:||Fe, O, P|
|All elements listed in formula:||Fe, Mg, Mn, O, P|
Relationship of Sarcopside to other Species
|Member of:||Sarcopside Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
|Related Minerals - Hey's Index Grouping:|
Other Names for Sarcopside
|Other Information:||Alters superficially to vivianite + unidentifeid Fe-Mn phosphates.|
|Health Warning:||No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.|
References for Sarcopside
Websky (1868) Zeitschrift der Deutsche geologische Gesellschaft, Berlin: 20: 245 (as Sarkopsid).
Holden (1920) American Mineralogist: 5: 99.
Holden (1924) American Mineralogist: 9: 205.
Larsen, E.S. and Berman, H. (1934) The Microscopic Determination of the Nonopaque Minerals, Second edition, USGS Bulletin 848: 193.
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, 1124 pp.: 858.
American Mineralogist (1969): 54: 969-972.
American Mineralogist (1972): 57: 24-35.
Internet Links for Sarcopside
Localities for Sarcopside
The 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.
(TL) indicates type locality. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
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Locality Updated: Lower Salt Lake Tuff, Puuloa Road, Oahu Island, Honolulu Co., Hawaii, USAFrom Van King, 12th Dec 2013 16:38:25