Dozyite Mineral Data

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



[Mineral Forums] [Minerals for Sale] [About Us] [En Espanol] [Mineral Gallery]
Fabre Minerals - Europe's first Internet mineral dealer, on the web since 1996


General Dozyite Information

Help on Chemical Formula: Chemical Formula: (Mg7Al2)(Si4Al2)O15(OH)12
Help on Composition: Composition: Molecular Weight = 834.48 gm
   Magnesium  20.39 %  Mg   33.81 % MgO
   Aluminum   12.93 %  Al   24.44 % Al2O3
   Silicon    13.46 %  Si   28.80 % SiO2
   Hydrogen    1.45 %  H    12.95 % H2O
   Oxygen     51.77 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mg7Al4Si4O15(OH)12
Help on Environment: Environment: Altered skarn near a copper-gold-silver ore zone. Cr-rich serpentinite.
Help on IMA Status: IMA Status: Approved IMA 1995
Help on Locality: Locality: Ertsberg East complex, Carstensz Mountains, central Irian Jaya, Indonesia. Wood Chrome mine, Lancaster Co., Pennsylvania, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the Dutch geologist Jean-Jacques Dozy (1908 - 2004), who discovered the Ertzberg mineral deposits.
Help on Name Pronunciation: Name Pronunciation: Dozyite Say DOZYITE
Help on Synonym: Synonym: ICSD 77351
  IMA1993-042
  PDF 47-1866
 

Search for Dozyite Images

Click Here To Search Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.
  

Dozyite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.5777:1:2.3279
Help on Cell Dimensions: Cell Dimensions: a = 5.323, b = 9.214, c = 21.45, Z = 2; beta = 94.717° V = 1,048.48 Den(Calc)= 2.64
Help on Crystal System: Crystal System: Monoclinic - DomaticH-M Symbol (m) Space Group: Cm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 7.129(1), 3.56(0.8), 2.427(0.6),
Click Here for Large Dozyite 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


Banfield J F , Bailey S W , American Mineralogist , 81 (1996) p.79-91, Formation of regularly interstatified serpentine-chlorite minerals by, tetrahedral inversion in long-period serpentine polytypes

 

Physical Properties of Dozyite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Colorless, Light violet, Light green.
Help on Density: Density: 2.66
Help on Diaphaneity: Diaphaneity: Translucent
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2.5 - Finger Nail
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Pearly
Help on Streak: Streak: white
 

Optical Properties of Dozyite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.024 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.016 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2186,KPDmeas= 0.2169,KC= 0.2221
Ncalc = 1.59
Help on Optical Data: Optical Data: Biaxial (+), a=1.575, b=1.575, g=1.581, bire=0.0060, 2V(Calc)=0, 2V(Meas)=0-5. Dispersion very weak.
Help on Pleochroism (x): Pleochroism (x): colorless.
Help on Pleochroism (y): Pleochroism (y): colorless.
Help on Pleochroism (z): Pleochroism (z): very pale tan.
 

Calculated Properties of Dozyite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.66 gm/cc
note: Specific Gravity of Dozyite =2.64 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEDozyite = 1.38 barns/electron
U=PEDozyite x rElectron Density= 3.66 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Dozyite is Not Radioactive
 

Dozyite Classification
Help on Dana Class: Dana Class: 71.04.02.01 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.04)interlayered 1:1, 2:1, and octahedra
  (71.04.02)Interstratified Chlorite-Smectite group
 
71.04.02.01 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
71.04.02.02 Lunijianlaite LiAl6(Si7Al)O20(OH)10 Unk Mono
 
71.04.02.03 Saliotite Na0.5Li0.5Al3AlSi3O10(OH)5 C 2/m 2/m
 
71.04.02.04 Tosudite Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O) Unk Ortho
 
71.04.02.05 Corrensite (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10•n(H2O) Unk Ortho
 
71.04.02.06 Kulkeite Na0.35Mg8AlSi7O20(OH)10 Unk Mono
 
71.04.02.07 Rectorite (Na,Ca)Al4(Si,Al)8O20(OH)4•2(H2O) Unk Mono
 
71.04.02.08 Aliettite [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe)2-3(Si,Al)4O10(OH)2•n(H2O) Unk Mono
 
71.04.02.09 Glagolevite! NaMg6[Si3AlO10](OH,O)8•H2O C1 1
Help on Strunz Class: Strunz Class: 09.EC.60 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.60 Aliettite [Mg3Si4O10(OH)2](Ca0.5,Na)0.33(Al,Mg,Fe)2-3(Si,Al)4O10(OH)2•n(H2O) Unk Mono
 
09.EC.60 Dozyite (Mg7Al2)(Si4Al2)O15(OH)12 Cm m
 
09.EC.60 Corrensite (Ca,Na,K)(Mg,Fe,Al)9(Si,Al)8O20(OH)10•n(H2O) Unk Ortho
 
09.EC.60 Kulkeite Na0.35Mg8AlSi7O20(OH)10 Unk Mono
 
09.EC.60 Karpinskite (Mg,Ni)2Si2O5(OH)2(?) Unk Mono
 
09.EC.60 Illite* (K,H3O)(Al,Mg,Fe)2(Si,Al)4O10[(OH)2,(H2O)] C 2/m 2/m
 
09.EC.60 Hydrobiotite [K(Mg,Fe)3(Al,Fe)Si3O10(OH,F)2]•[(Mg,Fe,Al)3(Si,Al)4O10(OH)2•4(H2O)] C 2/m 2/m
 
09.EC.60 Lunijianlaite LiAl6(Si7Al)O20(OH)10 Unk Mono
 
09.EC.60 Rectorite (Na,Ca)Al4(Si,Al)8O20(OH)4•2(H2O) Unk Mono
 
09.EC.60 Saliotite Na0.5Li0.5Al3AlSi3O10(OH)5 C 2/m 2/m
 
09.EC.60 Tosudite Na0,5(Al,Mg)6(Si,Al)8O18(OH)12•5(H2O) Unk Ortho
 
09.EC.60 Brinrobertsite! (Na,K,Ca)x(Al,Fe,Mg)4(Si,Al)8O20(OH)4•3.54(H2O)[x=0.35,n=3.54] pseudo 2/m 2/m
 

Other Dozyite Information
Help on References: References: NAME( MinRec) PHYS. PROP.(Am.Min.,Vol.80,p65-67,1995) OPTIC PROP.(MinRec)
Help on See Also: See Also: Links to other databases for Dozyite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - MinMax(Deutsch)
8 - MinMax(English)
9 - Mineralienatlas (Deutsch)
10 - QUT Mineral Atlas
11 - Ruff.Info
12 - WWW-MINCRYST

Search for Dozyite using:

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

Visit our Advertisers for Dozyite :

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 Dozyite Mineral Data :

Ask about Dozyite 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 Dozyite Specimen Label here :

Dozyite

(Mg7Al2)(Si4Al2)O15(OH)12
Dana No: 71.04.02.01 Strunz No: 09.EC.60
Locality:

 

Notes: