Phosphorrosslerite Mineral Data

Phosphorrosslerite Mineral Data +

[Express Minerals] [Minerals for Sale] [About Us] [En EspaÃƒï¿½Ã‚Â±ol] [Mineral Gallery]
Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996

General Phosphorrosslerite Information

Chemical Formula:

Mg(PO3OH)·7(H2O)

Composition:

Molecular Weight = 246.39 gm

Magnesium 9.86 % Mg 16.36 % MgO

Phosphorus 12.57 % P 28.80 % P₂O₅

Hydrogen 6.14 % H 54.84 % H₂O

Oxygen 71.43 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Mg(PO₃OH)·7(H₂O)

IMA Status:

Valid Species (Pre-IMA) 1939

Locality:

Link to MinDat.org Location Data.

Synonym:

Phosphorroesslerite

Search for Phosphorrosslerite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Phosphorrosslerite Crystallography

Axial Ratios:

a:b:c =0.457:1:0.261

Cell Dimensions:

a = 11.61, b = 25.4, c = 6.63, Z = 8; beta = 94.77° V = 1,948.38 Den(Calc)= 1.68

Crystal System:

Monoclinic - PrismaticH-M Symbol (2/m) Space Group: A2/a

Physical Properties of Phosphorrosslerite

Color:

Colorless, Yellowish.

Density:

1.725

Diaphaniety:

Transparent to Translucent

Hardness:

2.5 - Finger Nail

Luster:

Vitreous (Glassy)

Optical Properties of Phosphorrosslerite

Gladstone-Dale:

CI meas= -0.029 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= -0.057 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2873,KPDmeas= 0.2798,KC= 0.2719

Optical Data:

Biaxial (-), a=1.477, b=1.485, g=1.486, bire=0.0090, 2V(Calc)=38, 2V(Meas)=38.33.

Calculated Properties of Phosphorrosslerite

Electron Density:

r_electron=1.82 gm/cc
note: r_{Phosphorrosslerite}=1.73 gm/cc.

Fermion Index

Fermion Index = 0.01021
Boson Index = 0.98979

Photoelectric:

PE_{Phosphorrosslerite}= 0.97 barns/electron
U=PE_{Phosphorrosslerite} x r_electron= 1.77 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Phosphorrosslerite is Not Radioactive

Phosphorrosslerite Classification

Dana Class:

39.1.9.2 (39)Hydrated Acid Phosphates, etc

(39.1)A+ [HXO4] · x(H2O)

(39.1.9)Dana Group

39.1.9.1 Rosslerite Mg(AsO3OH)·7(H2O) A2/a 2/m

39.1.9.2 Phosphorrosslerite Mg(PO3OH)·7(H2O) A2/a 2/m

Strunz Class:

VII/C.15-20 VII - Phosphates, Arsenates and Vanadates

VII/C - Water-bearing phosphates without unfamiliar anions. cations of medium and small size: Be and Mn, Fe, Cu, Zn, Mg

VII/C.15 - Brassite - Rösslerite series

VII/C.15-10 Brassite Mg(AsO3OH)·4(H2O) P bca 2/m 2/m 2/m

VII/C.15-20 Phosphorrosslerite Mg(PO3OH)·7(H2O) A2/a 2/m

VII/C.15-30 Rosslerite Mg(AsO3OH)·7(H2O) A2/a 2/m

Other Phosphorrosslerite Information

References:

NAME( Athena) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Phosphorrosslerite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -Handbook of Mineralogy (UofA) 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas

Search for Phosphorrosslerite using:

[ALTAVISTA] [AOL] [About.com] [All-The-Web] [HotBot] [Ixquick] [LookSmart] [MAMMA] [MSN.COM] [Netscape] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Phosphorrosslerite :
AA Mineral Specimens
B and L Minerals
Dan Weinrich Fine Minerals
Dan Weinrich Auctions
e-Rocks Auctions
Excalibur Minerals
Exceptional Minerals
Fabre Minerals
Greenside Minerals
John Betts Fine Minerals
Masons Minerals
Minernet.it
Mineral News
Mineral of the Month Club
MineralsWeb Fine Minerals
Rockshop.cz Kalat Fine Minerals
T G Fine Minerals
Wrights Rock Shop

Translate Phosphorrosslerite Mineral Data :

Ask about Phosphorrosslerite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Phosphorrosslerite Specimen Label here :

Phosphorrosslerite

Mg(PO3OH)·7(H2O)
Dana No: 39.1.9.2 Strunz No: VII/C.15-20
Locality:

Notes: