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Sainfeldite Mineral Data

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General Sainfeldite Information

Help on Chemical  Formula: Chemical Formula: Ca5(AsO3OH)2(AsO4)2•4(H2O)
Help on Composition: Composition: Molecular Weight = 830.14 gm
   Calcium   24.14 %  Ca   33.78 % CaO
   Arsenic   36.10 %  As   55.37 % As2O5
   Hydrogen   1.21 %  H    10.85 % H2O
   Oxygen    38.55 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca5(AsO3OH)2(AsO4)2•4(H2O)
Help on IMA Status: IMA Status: Approved IMA 1964
Help on Locality: Locality: 40m level, Gabe Gottes vein, Ste. Marie-aux-Mines, Vosges Mountains, Alsace, France. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Paul Sainfeld (1916-), Musee des Mineralogie, Ecole des Mines, Paris.
Help on Name Pronunciation: Name Pronunciation: Sainfeldite + Pronunciation Say SAINFELDITE
Help on Synonym: Synonym: ICSD 21068
  PDF 16-615
 

Sainfeldite Image

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  Sainfeldite

Comments: Rose-colored crystalline aggregate of Sainfeldite.
Location: Wechsel Schacht, Richelsdorf, Hesse, Germany. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Sainfeldite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.9001:1:1.0316
Help on Cell Dimensions: Cell Dimensions: a = 18.64, b = 9.81, c = 10.12, Z = 4; beta = 97° V = 1,836.73 Den(Calc)= 3.00
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.37(1), 3.18(0.8), 8.7(0.6),
 

Physical Properties of Sainfeldite

Help on Color: Color: Colorless, Light pink.
Help on Density: Density: 3.04
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Sainfeldite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.014 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.027 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2029,KPDmeas= 0.2002,KC= 0.1975
Ncalc = 1.59 - 1.6
Help on Optical Data: Optical Data: Biaxial (-), a=1.6, b=1.61, g=1.616, bire=0.0160, 2V(Calc)=74, 2V(Meas)=80.
 

Calculated Properties of Sainfeldite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.94 gm/cc
note: Specific Gravity of Sainfeldite =3.04 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0005127216
Boson Index = 0.9994872784
Help on Photoelectric: Photoelectric: PESainfeldite = 27.22 barns/electron
U=PESainfeldite x rElectron Density= 80.14 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sainfeldite is Not Radioactive
 

Sainfeldite Classification

Help on  Dana Class: Dana Class: 39.02.01.02 (39)Hydrated Acid Phosphates, etc
  (39.02)H2 (AB)5 (XO4)4 � x(H2O)
  (39.02.01)Hureaulite Group
 
39.02.01.01 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m
 
39.02.01.02 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
 
39.02.01.03 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
 
39.02.01.04 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m
 
39.02.01.05 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m
Help on  Strunz Class: Strunz Class: 08.CB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.C - Phosphates without Additional Anions, with H2O
  08.CB -With only medium-sized cations, RO4:H2O = 1:1
 
08.CB.10 Hureaulite Mn5(PO3OH)2(PO4)2•4(H2O) C 2/c 2/m
 
08.CB.10 Sainfeldite Ca5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
 
08.CB.10 IMA2008-066! Mn5(H2O)4(AsO3OH)2(AsO4)2 C 2/c 2/m
 
08.CB.10 Villyaellenite Mn5(AsO3OH)2(AsO4)2•4(H2O) C 2/c 2/m
 
08.CB.10 IMA2008-047! Cd3Zn2(AsO3OH)2(AsO4)24?H2O C 2/c 2/m
 

Other Sainfeldite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)
Help on See Also: See Also: Links to other databases for Sainfeldite :
1 - Am. Min. Crystal Structure Database
2 - Amethyst Galleries' Mineral Gallery
3 - Athena
4 - EUROmin Project
5 - Ecole des Mines de Paris
6 - GeoScienceWorld
7 - Google Images
8 - Google Scholar
9 - Handbook of Mineralogy (MinSocAm)
10 - Handbook of Mineralogy (UofA)
11 - MinDAT
12 - Mineralienatlas (Deutsch)
13 - Online Mineral Museum
14 - QUT Mineral Atlas
15 - Ruff.Info

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

Sainfeldite

Ca5(AsO3OH)2(AsO4)2•4(H2O)
Dana No: 39.02.01.02 Strunz No: 08.CB.10
Locality:

 

Notes:

 

 
   
 


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