Ericaite Mineral Data

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

Advertisment
Your premier supplier of quality mineral specimens from Southern Africa and the world at large

General Ericaite Information

Help on Chemical Formula: Chemical Formula: (Fe++,Mg,Mn)3B7O13Cl
Help on Composition: Composition: Molecular Weight = 458.00 gm
   Magnesium   4.78 %  Mg    7.92 % MgO
   Manganese   3.60 %  Mn    4.65 % MnO
   Iron       21.95 %  Fe   28.24 % FeO
   Boron      16.52 %  B    53.20 % B2O3
   Chlorine    7.74 %  Cl    7.74 % Cl
                -   %   Cl   -1.75 % -O=Cl2   
   Oxygen     45.41 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Fe2+1.8Mg0.9Mn2+0.3B7O13Cl
Help on Environment: Environment: Forms a series with boracite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1950
Help on Locality: Locality: Wathlingen-Hanigsen, Hannover, Germany. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the purple color of flowers from the genus Erica (Heather).
Help on Name Pronunciation: Name Pronunciation: Ericaite Say ERICAITE
Help on Synonym: Synonym: ICSD 9290 (Mg)
  PDF 26-780
 

Ericaite Image

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

Ericaite

Comments: Cubic crystal ericaite.
Location: Bischofferode, Nordhausen, Erfurt district, Harz Mts, Thuringia, Germany. Scale: Crystal size 3.7 mm.
© Thomas Witzke / Abraxas-Verlag

Ericaite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.9873:1:1.4004
Help on Cell Dimensions: Cell Dimensions: a = 8.58, b = 8.69, c = 12.17, Z = 4; V = 907.40 Den(Calc)= 3.35
Help on Crystal System: Crystal System: Orthorhombic - PyramidalH-M Symbol (mm2) Space Group: P ca21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.04(1), 2.06(0.7), 2.72(0.6),2.15(0.5), 1.83(0.4), 3.51(0.4), 1.24(0.3), 1.47(0.2),
 

Physical Properties of Ericaite

Help on Cleavage: Cleavage: None
Help on Color: Color: Purple, Light green, Red, Black, Brown.
Help on Density: Density: 3.22
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Pseudo Cubic - Crystals show a cubic outline.
Help on Hardness: Hardness: 7-7.5 - Quartz-Garnet
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Ericaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.069 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.028 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.223,KPDmeas= 0.232,KC= 0.2169
Ncalc = 1.7 - 1.73
Help on Optical Data: Optical Data: Biaxial (-), a=1.731, b=1.755, g=1.755, bire=0.0240, 2V(Calc)=0, 2V(Meas)=small.
 

Calculated Properties of Ericaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.23 gm/cc
note: Specific Gravity of Ericaite =3.35 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEEricaite = 8.32 barns/electron
U=PEEricaite x rElectron Density= 26.90 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Ericaite is Not Radioactive
 

Ericaite Classification
Help on Dana Class: Dana Class: 25.06.01.02 (25)Anhydrous Borates Containing Hydroxyl or Halogen
  (25.06)Dana Type
  (25.06.01)Boracite Group (Orthorhombic: Rca21)
 
25.06.01.01 Boracite Mg3B7O13Cl P ca21 mm2
 
25.06.01.02 Ericaite (Fe,Mg,Mn)3B7O13Cl P ca21 mm2
 
25.06.01.03 Chambersite Mn3B7O13Cl P ca21 mm2
Help on Strunz Class: Strunz Class: 06.GA.05 06 - BORATES
  06.G - Heptaborates and other Megaborates
  06.GA -Tekto-heptaborates
 
06.GA.05 Boracite Mg3B7O13Cl P ca21 mm2
 
06.GA.05 Chambersite Mn3B7O13Cl P ca21 mm2
 
06.GA.05 Ericaite (Fe,Mg,Mn)3B7O13Cl P ca21 mm2
 

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

Search for Ericaite using:

Google
 
Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Ericaite :

A Bijoux Google Search for Ericaite
Adam's Minerals Google Search for Ericaite
Cape Minerals Google Search for Ericaite
Dakota Matrix Minerals Google Search for Ericaite
Excalibur Mineral Corp. Google Search for Ericaite
Exceptional Minerals Google Search for Ericaite
John Betts Fine Minerals Search for Ericaite
McDougall Minerals Google Search for Ericaite
Mineral News Website Link
Rock and Mineral Shows Google Search for Ericaite
Weinrich Minerals, Inc. Google Search for Ericaite

Ask about Ericaite 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 Ericaite Specimen Label here :

Ericaite

(Fe++,Mg,Mn)3B7O13Cl
Dana No: 25.06.01.02 Strunz No: 06.GA.05
Locality:

 

Notes: