Herderite Mineral Data

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

Advertisment
For more than thirty (30) years, Excalibur Mineral Corp. has been providing private collectors, researchers, major universities and museums throughout the world with reliably identified, rare and unusual mineral samples for science an
 Weinrich Minerals, A Dealer in Fine Mineral Specimens - Since 1989. We buy collections and single high quality specimens.
 Adamsminerals.com- Online mineral store front for mineral collectors
 Exceptional Minerals features excellent, high quality mineral specimens for sale. We also have a weekly Best Offer Mineral Auction.

General Herderite Information

Help on Chemical Formula: Chemical Formula: CaBe(PO4)F
Help on Composition: Composition: Molecular Weight = 163.06 gm
   Calcium     24.58 %  Ca   34.39 % CaO
   Beryllium    5.53 %  Be   15.34 % BeO
   Phosphorus  19.00 %  P    43.53 % P2O5
   Oxygen      39.25 %  O
   Fluorine    11.65 %  F    11.65 % F
                 -   %   F    -4.91 % -O=F2    
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: CaBe(PO4)F
Help on Environment: Environment: Forms a series with hydroxylherderite.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1828
Help on Locality: Locality: Ehrenfriedersdorf, Saxony, Germay. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Siegmund August Wolfgang von Herder (1776-1838), mining official in Freiberg, Saxony, Germany.
Help on Name Pronunciation: Name Pronunciation: Herderite + Pronunciation Say HERDERITE
Help on Synonym: Synonym: ICSD 20573
  PDF 6-338
 

Herderite Image

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

Herderite

Comments: Partially transparent herderite crystal with minor white albite.
Location: Alto do Corrego Frio, Linopolis, Minas Gerais, Brazil. Scale: 3.1x2.7x2.9 cm.
© Fabre Minerals

Herderite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.2777:1:0.627
Help on Cell Dimensions: Cell Dimensions: a = 9.789, b = 7.661, c = 4.804, Z = 4; beta = 90.02° V = 360.27 Den(Calc)= 3.01
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/a
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.14(1), 2.86(0.8), 2.2(0.7),
Help on Forms: Forms:

Mouse
Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize
Keyboard
S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu
Help on Above

Forms: ( 1 1 0) ( 1 1 1) ( 0 1 1)

Warning: this large pop-up is very compute intensive and may not work well with some computers.
Click Here for Large Herderite 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


Harlow G E , Hawthorne F C , American Mineralogist , 93 (2008) p.1545-1549, Herderite from Mogok, Myanmar, and comparison with hydroxyl-herderite from, Ehrenfriedersdorf, Germany, Locality: Sauberg mine, Morgenrother Zug, Ehrenfriedersdorf, Germany, Note: 20517, Note: Occupancies derived from X-ray diffraction analysis

 

Physical Properties of Herderite

Help on Cleavage: Cleavage: {110} Indistinct
Help on Color: Color: White, Yellowish white, Greenish white.
Help on Density: Density: 3
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Sub Conchoidal - Fractures developed in brittle materials characterized by semi-curving surfaces.
Help on Hardness: Hardness: 5 - Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Herderite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.043 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.04 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2019,KPDmeas= 0.2026,KC= 0.1942
Ncalc = 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.591-1.592, b=1.611-1.612, g=1.619-1.621, bire=0.0280-0.0290
 

Calculated Properties of Herderite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.95 gm/cc
note: Specific Gravity of Herderite =3.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.05
Boson Index = 0.95
Help on Photoelectric: Photoelectric: PEHerderite = 4.08 barns/electron
U=PEHerderite x rElectron Density= 12.04 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Herderite is Not Radioactive
 

Herderite Classification
Help on Dana Class: Dana Class: 41.05.04.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.05)where (A B)2 (XO4) Zq
  (41.05.04)Herderite Group
 
41.05.04.01 Herderite CaBe(PO4)F P 21/a 2/m
 
41.05.04.02 Hydroxylherderite CaBe(PO4)(OH) P 21/a 2/m
 
41.05.04.03 Vayrynenite MnBe(PO4)(OH,F) P 21/a 2/m
 
41.05.04.04 Bergslagite CaBe(AsO4)(OH) P 21/c 2/m
Help on Strunz Class: Strunz Class: 08.BA.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BA -With small and medium-sized cations
 
08.BA.10 Bergslagite CaBe(AsO4)(OH) P 21/c 2/m
 
08.BA.10 Herderite CaBe(PO4)F P 21/a 2/m
 
08.BA.10 Hydroxylherderite CaBe(PO4)(OH) P 21/a 2/m
 

Other Herderite Information
Help on References: References: 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 Herderite :
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
16 - Scandinavian mineral gallery
17 - WWW-MINCRYST

Search for Herderite using:

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

Visit our Advertisers for Herderite :

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

Ask about Herderite 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 Herderite Specimen Label here :

Herderite

CaBe(PO4)F
Dana No: 41.05.04.01 Strunz No: 08.BA.10
Locality:

 

Notes: