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Phosphorrösslerite

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About PhosphorrössleriteHide

Formula:
Mg(HPO4) · 7H2O
Colour:
Colorless, white, pale yellow due to staining; colorless in transmitted light.
Lustre:
Vitreous, Waxy, Dull
Hardness:
Specific Gravity:
1.721 - 1.729
Crystal System:
Monoclinic
Name:
Named by Friedrich Robitsch in 1939 for its chemical relationship to rösslerite, containing PHOSPHORus.
Isostructural with:
The phosphate analogue of Rösslerite.

Easily dehydrates to newberyite.


Classification of PhosphorrössleriteHide

Approved, 'Grandfathered' (first described prior to 1959)
8.CE.20

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
E : With only medium-sized cations, RO4:H2O about 1:2.5
39.1.9.2

39 : HYDRATED ACID PHOSPHATES,ARSENATES AND VANADATES
1 : A[HXO4]·xH2O
19.3.18

19 : Phosphates
3 : Phosphates of Be and Mg

Physical Properties of PhosphorrössleriteHide

Vitreous, Waxy, Dull
Transparency:
Translucent
Comment:
Turns dull upon dehydration.
Colour:
Colorless, white, pale yellow due to staining; colorless in transmitted light.
Streak:
White
Hardness:
2½ on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Conchoidal, Sub-Conchoidal
Density:
1.721 - 1.729 g/cm3 (Measured)    1.717 g/cm3 (Calculated)
Comment:
1.728 (artificial material). Calculated D ranges 1.68-1.741

Optical Data of PhosphorrössleriteHide

Type:
Biaxial (-)
RI values:
nα = 1.477 nβ = 1.485 nγ = 1.486
2V:
Measured: 38° , Calculated: 38°
Birefringence:
0.009
Max Birefringence:
δ = 0.009
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
r > v
Optical Extinction:
Z ^ c = 6.5°; OAP perpendicular {010}
Pleochroism:
Non-pleochroic

Chemical Properties of PhosphorrössleriteHide

Formula:
Mg(HPO4) · 7H2O
IMA Formula:
Mg(PO3OH) · 7H2O

Crystallography of PhosphorrössleriteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P2/b
Setting:
P2/c
Cell Parameters:
a = 11.61 Å, b = 25.40 Å, c = 6.63 Å
β = 94.77°
Ratio:
a:b:c = 0.457 : 1 : 0.261
Unit Cell V:
1,948.38 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Crystals equi-dimentional or short prismatic [100]; also skeletal or crusted. Easily dehydrates to a pseudomorph of newberyite after phosphorrösslerite.
Comment:
ZK 137:246 (1973) structure; also ICDD 19-761 (synthetic)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.55 (90)
4.42 (90)
4.13 (90)
3.29 (100)
2.82 (100)
2.70 (90)
2.63 (90)
1.991 (90)
Comments:
ICDD 19-761 (synthetic).

Type Occurrence of PhosphorrössleriteHide

Geological Setting of Type Material:
Post-mine. Found in cold (10° C), wet muck in abandoned mine workings.

Synonyms of PhosphorrössleriteHide

Other Language Names for PhosphorrössleriteHide

Related Minerals - Nickel-Strunz GroupingHide

8.CE.XBabánekiteCu3(AsO4)2 · 8H2O Mon. 2/m : B2/m
8.CE.05Chudobaite(Mg,Zn)5(AsO4)2(HAsO4)2 · 10H2OTric.
8.CE.05GeigeriteMn2+5(AsO4)2(HAsO4)2 · 10H2OTric.
8.CE.10NewberyiteMg(HPO4) · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CE.15BrassiteMg(HAsO4) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CE.20RößleriteMg(HAsO4) · 7H2OMon. 2/m : B2/b
8.CE.25MetaswitzeriteMn2+3(PO4)2 · 4H2OMon. 2/m : P2/b
8.CE.25Switzerite(Mn,Fe)3(PO4)2 · 7H2OMon.
8.CE.30LindackeriteCuCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30OndrušiteCaCu4(AsO4)2(HAsO4)2 · 10H2OTric. 1 : P1
8.CE.30VeselovskýiteZnCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30PradetiteCoCu4(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
8.CE.30KlajiteMnCu4(AsO4)2(HAsO4)2 · 9-10H2OTric. 1 : P1
8.CE.35BobierriteMg3(PO4)2 · 8H2OMon. 2/m : B2/b
8.CE.40AnnabergiteNi3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40ArupiteNi3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40Barićite(Mg,Fe)3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40ErythriteCo3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40FerrisymplesiteFe3+3(AsO4)2(OH)3 · 5H2O
8.CE.40HörnesiteMg3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40KöttigiteZn3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40Manganohörnesite(Mn,Mg)3(AsO4)2 · 8H2OMon. 2/m : P2/m
8.CE.40ParasymplesiteFe2+3(AsO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40VivianiteFe2+3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.40PakhomovskyiteCo3(PO4)2 · 8H2OMon. 2/m : B2/m
8.CE.45SymplesiteFe2+3(AsO4)2 · 8H2OTric. 1 : P1
8.CE.50CattiiteMg3(PO4)2 · 22H2OTric. 1 : P1
8.CE.55KoninckiteFe3+PO4 · 3H2OTet.
8.CE.60KaňkiteFeAsO4 · 3.5H2OMon.
8.CE.65SteigeriteAl(VO4) · 3H2OMon. 2/m : P21/m
8.CE.70MetaschoderiteAl2(PO4)(VO4) · 6H2OMon. 2/m : P2/m
8.CE.70SchoderiteAl2(PO4)(VO4) · 8H2OMon.
8.CE.75MalhmooditeFeZr(PO4)2 · 4H2OMon.
8.CE.75ZigrasiteMgZr(PO4)2 · 4H2OTric. 1 : P1
8.CE.75Unnamed (Ca-analogue of Zigrasite)CaZr[PO4]2 · 4H2OTric.
8.CE.80SantabarbaraiteFe3+3(PO4)2(OH)3 · 5H2OAmor.
8.CE.85Metaköttigite(Zn,Fe,Fe)3(AsO4)2 · 8(H2O,OH)Tric. 1 : P1

Related Minerals - Dana Grouping (8th Ed.)Hide

39.1.9.1RößleriteMg(HAsO4) · 7H2OMon. 2/m : B2/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.3.1MoraesiteBe2(PO4)(OH) · 4H2OMon.
19.3.2BerylloniteNaBePO4Mon. 2/m : P21/b
19.3.3HurlbutiteCaBe2(PO4)2Mon.
19.3.4HydroxylherderiteCaBe(PO4)(OH,F)Mon. 2/m : P21/b
19.3.5GlucineCaBe4(PO4)2(OH)4 · 0.5H2O
19.3.6FransoletiteCa3Be2(PO4)2(HPO4)2 · 4H2OMon.
19.3.7UraloliteCa2Be4(PO4)3(OH)3 · 5H2OMon.
19.3.9PahasapaiteLi8(Ca,Li,K)10.5Be24(PO4)24 · 38H2OIso. 2 3 : I2 3
19.3.10TiptopiteK2(Na,Ca)2Li3Be6(PO4)6(OH)2 · H2OHex.
19.3.11GainesiteNa(Na,K)(Be,Li)Zr2(PO4)4 · 1.5-2H2OTet. 4mm : I41md
19.3.12RoscheriteCa2Mn2+5Be4(PO4)6(OH)4 · 6H2OMon. 2/m : B2/m
19.3.13FaheyiteBe2Mn2+Fe3+2(PO4)4 · 6H2OTrig. 3 2 : P31 2 1
19.3.14FarringtoniteMg3(PO4)2Mon. 2/m
19.3.15HoltedahliteMg2(PO4)(OH)Trig. 3m : P3 1m
19.3.16AlthausiteMg4(PO4)2(OH,O)(F,☐)Orth. mmm (2/m 2/m 2/m) : Pnma
19.3.17NewberyiteMg(HPO4) · 3H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.3.19BobierriteMg3(PO4)2 · 8H2OMon. 2/m : B2/b
19.3.20Barićite(Mg,Fe)3(PO4)2 · 8H2OMon. 2/m : B2/m
19.3.21Panethite(Na,Ca)2(Mg,Fe2+)2(PO4)2Mon. 2/m : P21/b
19.3.22Dittmarite(NH4)Mg(PO4) · H2OOrth.
19.3.23Struvite(NH4)Mg(PO4) · 6H2OOrth. mm2
19.3.24Hannayite(NH4)2Mg3H4(PO4)4 · 8H2OTric. 1 : P1

Fluorescence of PhosphorrössleriteHide

Not fluorescent

Other InformationHide

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 PhosphorrössleriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Friedrich and Robitsch (1939) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 142.
Hägele and Machatschki (1939) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 297.
American Mineralogist (1940): 25: 313.
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.: 713-714.
Zeitschrift für Kristallographie (1973): 137: 246.
Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva (1980): 109: 344.

Internet Links for PhosphorrössleriteHide

Localities for PhosphorrössleriteHide

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.
Austria (TL)
 
  • Salzburg
    • Lungau
      • Murwinkel
        • Schellgaden
          • Gold mines
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: 714; Auer, C. (1995) Lapis: 20(11): 11-20.
  • Styria
    • Schladming
      • Schladminger Tauern
        • Obertalbach valley
R. Exel: Die Mineralien und Erzlagerstätten Österreichs (1993)
Laskovic, F. & Weninger, H. (1967): Phosphorrößlerit MgH(PO4).7H2O und Newberyit MgH(PO4).3H2O aus dem Revier Roßblei der Eschachbaue im Obertal bei Schladming. Archiv für Lagerstättenforschung in den Ostalpen, 5, 132-139.
USA
 
  • New Mexico
    • Colfax Co.
Minerals of New Mexico 3rd ed.
Mineral and/or Locality  
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