Greifensteinite Mineral Data

Greifensteinite Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About



[About Us] [Products] [Fluorescent Mineals] [Contact Us]
UVTools is a supplier of affordable ultraviolet lamps and fluorescent minerals
Our customers include mineral dealers, gift shops, and museums worldwide
We provide an array of shortwave, midwave, and longwave lamps at the best price!


General Greifensteinite Information

Help on Chemical Formula: Chemical Formula: Ca2Be4(Fe++,Mn)5(PO4)6(OH)4•6(H2O)
Help on Composition: Composition: Molecular Weight = 1,108.19 gm
   Calcium      7.09 %  Ca    9.92 % CaO
   Magnesium    0.20 %  Mg    0.33 % MgO
   Manganese    4.26 %  Mn    5.51 % MnO
   Beryllium    3.31 %  Be    9.19 % BeO
   Aluminum     0.56 %  Al    1.06 % Al2O3
   Iron        17.34 %  Fe   22.30 % FeO
   Phosphorus  16.66 %  P    38.17 % P2O5
   Hydrogen     1.51 %  H    13.53 % H2O
   Oxygen      49.07 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.96Be4.07Fe2+3.44Mn2+0.86Al0.23Mg0.09(PO4)5.96(OH)3.65·6.5(H2O)
Help on Environment: Environment: Miarolitic cavities in lithium-rich granite pegmatite. (Fe-dominant analogue of monoclinic roscherite and zanazziite; structure)
Help on IMA Status: IMA Status: Approved IMA 2002 (Dana # Added)
Help on Locality: Locality: Greifenstein, Saxony, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Synonym: Synonym: IMA2001-044
 

Greifensteinite Image

Click Here for Larger Greifensteinite Image in a New Browser Window Images:
Click Here for Larger Greifensteinite Image

Greifensteinite

Comments: Tabular crystal of greifensteinite impaled on acicular tourmaline.
Location: Greifenstein Rocks, Ehrenfriedersdorf, Erzgebirge, Saxony, Germany. Scale: Picture size 1 mm.
© Thomas Witzke / Abraxas-Verlag

Greifensteinite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.338:1:0.5618
Help on Cell Dimensions: Cell Dimensions: a = 15.903, b = 11.885, c = 6.677, Z = 2; beta = 94.68° V = 1,257.79 Den(Calc)= 2.93
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 9.48(1)(110), 3.96(0.9)(400), 2.783(0.8)(240),5.94(0.8)(020), 2.638(0.7)(600), 2.982(0.7)(202), 3.068(0.6)(510), 4.82(0.6)(310),
Click Here for Large Greifensteinite Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Rastsvetaeva R K , Gurbanova O A , Chukanov N V , Doklady Chemistry , 383 (2002) p.78-81, Crystal structure of greifensteinite, Ca2Be4(Fe2+,Mn)5(PO4)6(OH)4*6H2O, Locality: Greifenstein, Saxony, Germany

 

Physical Properties of Greifensteinite

Help on Cleavage: Cleavage: {100} Parting
Help on Color: Color: Dark olive green.
Help on Density: Density: 2.93
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
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 Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: green
 

Optical Properties of Greifensteinite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.006 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2157,KPDmeas= 0.2157,KC= 0.2144
Ncalc = 1.63
Help on Optical Data: Optical Data: Biaxial (-), a=1.624, b=1.634, g=1.638, bire=0.0140
 

Calculated Properties of Greifensteinite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.90 gm/cc
note: Specific Gravity of Greifensteinite =2.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.03
Boson Index = 0.97
Help on Photoelectric: Photoelectric: PEGreifensteinite = 7.92 barns/electron
U=PEGreifensteinite x rElectron Density= 22.96 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Greifensteinite is Not Radioactive
 

Greifensteinite Classification
Help on Dana Class: Dana Class: 42.07.07.04 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen
  (42.07)where (AB)5 (XO4)3 Zq · x(H2O)
  (42.07.07)Roscherite group
 
42.07.07.01 Roscherite Ca(Mn,Fe)5Be4(PO4)6(OH)4•6(H2O) C1 1
 
42.07.07.03 Zanazziite Ca2(Mg,Fe)(Mg,Fe,Al,Mn,Fe)4Be4(PO4)6(OH)4•6(H2O) C 2/c 2/m
 
42.07.07.04 Greifensteinite! Ca2Be4(Fe,Mn)5(PO4)6(OH)4•6(H2O) C 2/c 2/m
 
42.07.07.05 Atencioite! Ca2Fe[]Mg2Fe2Be4(PO4)6(OH)4•6H2O P1 1
 
42.07.07.06 Guimaraesite Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4•6H2O C 2/c 2/m
 
42.07.07.07 Footemineite! Ca2MnMn2Mn2Be4(PO4)6(OH)4•6H2O P1 1
 
42.07.07.08 Ruifrancoite! Ca2([],Mn)2(Fe,Mn,Mg)4Be4(PO4)6(OH)4•6H2O C 2/c 2/m
Help on Strunz Class: Strunz Class: 08.DA.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.D - Phosphates, etc
  08.DA -With small (and occasionally larger) cations
 
08.DA.10 Roscherite Ca(Mn,Fe)5Be4(PO4)6(OH)4•6(H2O) C1 1
 
08.DA.10 Zanazziite Ca2(Mg,Fe)(Mg,Fe,Al,Mn,Fe)4Be4(PO4)6(OH)4•6(H2O) C 2/c 2/m
 
08.DA.10 Footemineite! Ca2MnMn2Mn2Be4(PO4)6(OH)4•6H2O P1 1
 
08.DA.10 Atencioite! Ca2Fe[]Mg2Fe2Be4(PO4)6(OH)4•6H2O P1 1
 
08.DA.10 Greifensteinite! Ca2Be4(Fe,Mn)5(PO4)6(OH)4•6(H2O) C 2/c 2/m
 
08.DA.10 Ruifrancoite! Ca2([],Mn)2(Fe,Mn,Mg)4Be4(PO4)6(OH)4•6H2O C 2/c 2/m
 
08.DA.10 Guimaraesite Ca2(Zn,Mg,Fe)5Be4(PO4)6(OH)4•6H2O C 2/c 2/m
 

Other Greifensteinite Information
Help on References: References: NAME( AmMin, 88:1176) PHYS. PROP.(AmMin, 88:1176) OPTIC PROP.(AmMin, 88:1176)
Help on See Also: See Also: Links to other databases for Greifensteinite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - Handbook of Mineralogy (MinSocAm)
7 - Handbook of Mineralogy (UofA)
8 - MinDAT
9 - Mineralienatlas (Deutsch)
10 - Online Mineral Museum
11 - QUT Mineral Atlas
12 - Ruff.Info

Search for Greifensteinite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [bing] [GeoScienceWorld] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Greifensteinite :

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

John Betts Fine Minerals

Lapis Mineral Journal

Mineral News

UV Tools

Wrights Rock Shop

Translate Greifensteinite Mineral Data :

Ask about Greifensteinite 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 Espaņol

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

Greifensteinite

Ca2Be4(Fe++,Mn)5(PO4)6(OH)4•6(H2O)
Dana No: 42.07.07.04 Strunz No: 08.DA.10
Locality:

 

Notes: