Chladniite Mineral Data

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



[Newest Minerals] [Mineral Auctions] [Mineral Gallery]
The Mineral Gallery's Exceptional Specimens and Mineral Hall of Fame
Visa, PayPal, and Mastercard are Welcomed


General Chladniite Information

Help on Chemical Formula: Chemical Formula: Na2Ca(Mg,Fe++)7(PO4)6
Help on Composition: Composition: Molecular Weight = 847.39 gm
   Sodium       4.88 %  Na    6.58 % Na2O
   Calcium      4.73 %  Ca    6.62 % CaO
   Magnesium   20.08 %  Mg   33.29 % MgO
   Iron         1.98 %  Fe    2.54 % FeO
   Silicon      0.33 %  Si    0.71 % SiO2
   Phosphorus  21.93 %  P    50.25 % P2O5
   Oxygen      46.07 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na1.8CaMg7Fe2+0.3(PO4)6(SiO4)0.1
Help on Environment: Environment: In iron and achrondite meteorites.
Help on IMA Status: IMA Status: Approved IMA 1994
Help on Locality: Locality: Carleton type IIICD iron and GRA 95209 primitive achrondite meteorites. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Ernst Florens Friedrich Chladni (1756-1827), German physicist, University of Riga, Riga, Latvia who first espoused the extraterrestrial origin of meteorites.
Help on Synonym: Synonym: IMA1993-010
 

Chladniite Image

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

Chladniite

Comments: B&W reflected light image of chladniite (Ch). Silicates are olivine (Ol), pyroxene (Px), and plagioclase (Pl). Chlorapatite (Ca). Schreibersite (Sc) and Fe,Ni metal (M) encloses the entire assemblage.
Location: Carlton (IIICD) iron meteorite. (AmMin, v79:375). Scale: Scale Bar 200 µm.
© American Mineralogist

Chladniite Crystallography
Help on Axial Ratios: Axial Ratios: a:c = 1:2.84592
Help on Cell Dimensions: Cell Dimensions: a = 14.967, c = 42.595, Z = 40; V = 8,263.40 Den(Calc)= 6.81
Help on Crystal System: Crystal System: Trigonal - RhombohedralH-M Symbol ( 3) Space Group: R 3
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.753(1), 2.96(1), 3.694(1),
 

Physical Properties of Chladniite

Help on Cleavage: Cleavage: {???} Good
Help on Color: Color: Colorless.
Help on Density: Density: 3.01
Help on Diaphaneity: Diaphaneity: Transparent
Help on Habit: Habit: Granular - Generally occurs as anhedral to subhedral crystals in matrix.
Help on Habit: Habit: Selvage - As a reaction rim, surrounding the host mineral.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: white
 

Optical Properties of Chladniite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.06 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= 0.532 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.0896,KPDmeas= 0.2027,KC= 0.1912
Ncalc = 1.58 - 2.3
Help on Optical Data: Optical Data: Uniaxial (-), e=1.6, w=1.62, bire=0.0200.
 

Calculated Properties of Chladniite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.97 gm/cc
note: Specific Gravity of Chladniite =3.01 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEChladniite = 2.75 barns/electron
U=PEChladniite x rElectron Density= 8.17 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Chladniite is Not Radioactive
 

Chladniite Classification
Help on Dana Class: Dana Class: 38.02.05.03 (38)Anhydrous Phosphates, etc
  (38.02)(A+ B++)5 (XO4)3
  (38.02.05)Fillowite Group
 
38.02.05.01 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
 
38.02.05.02 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
 
38.02.05.03 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
 
38.02.05.04 Galileiite! NaFe4(PO4)3 R 3 3
 
38.02.05.05 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri
 
38.02.05.06 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
Help on Strunz Class: Strunz Class: 08.AC.50 08 - PHOSPHATES, ARSENATES, VANADATES
  08.A - Phosphates, etc. without additional anions, without H2O
  08.AC -With medium-sized and large cations
 
08.AC.50 Fillowite Na2Ca(Mn,Fe)7(PO4)6 R 3 3
 
08.AC.50 Chladniite Na2Ca(Mg,Fe)7(PO4)6 R 3 3
 
08.AC.50 Johnsomervilleite Na2Ca(Mg,Fe,Mn)7(PO4)6 R 3 3
 
08.AC.50 Galileiite! NaFe4(PO4)3 R 3 3
 
08.AC.50 Stornesite-(Y)! (Y,Ca)[]2Na6(Ca,Na)8(Mg,Fe)43(PO4)36 R 3 3
 
08.AC.50 Xenophyllite! Na4Fe7(PO4)6 P1 or P1 Tri
 

Other Chladniite Information
Help on References: References: NAME( AntBidBlaNic4) PHYS. PROP.(Am.Min.,Vol.79,p375-380,1994) OPTIC PROP.(Am.Min.,Vol.79,p375-380,1994)
Help on See Also: See Also: Links to other databases for Chladniite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info

Search for Chladniite using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Chladniite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Chladniite Mineral Data :

Ask about Chladniite 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 Chladniite Specimen Label here :

Chladniite

Na2Ca(Mg,Fe++)7(PO4)6
Dana No: 38.02.05.03 Strunz No: 08.AC.50
Locality:

 

Notes: