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Aspidolite Mineral Data

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General Aspidolite Information

Help on Chemical  Formula: Chemical Formula: NaMg3AlSi3O10(OH)2
Help on Composition: Composition: Molecular Weight = 410.89 gm
   Potassium   0.95 %  K     1.15 % K2O
   Sodium      5.04 %  Na    6.79 % Na2O
   Magnesium  13.43 %  Mg   22.27 % MgO
   Titanium    0.58 %  Ti    0.97 % TiO2
   Aluminum   12.15 %  Al   22.95 % Al2O3
   Iron        3.13 %  Fe    4.02 % FeO
   Silicon    17.50 %  Si   37.43 % SiO2
   Hydrogen    0.48 %  H     4.32 % H2O
   Oxygen     46.61 %  O
   Fluorine    0.14 %  F     0.14 % F
                -   %   F    -0.06 % -O=F2    
             ______        ______ 
             100.00 %       99.98 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na0.9K0.1Mg2.27Al0.41Fe2+0.23Ti0.05Al1.44Si2.56O10(OH)1.97F0.03
Help on Environment: Environment: Found in Zone 4 (forsterite-diopside) of the contact aureole around the Kaizuki-yama granite. Renamed in 1998 from sodiumphlogopite by the IMA Mica commission. 1M polytype.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Found in waste rock in the Kawai pit of the Kasuga mine. Kasuga-mura, Gifu Prefecture, central Japan. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: The name is from the Greek "aspisidos", like a shield, alluding to the appearance of its crystals.
Help on Name Pronunciation: Name Pronunciation: Aspidolite + Pronunciation Say ASPIDOLITE
Help on Synonym: Synonym: IMA2004-049
  Natriumphlogopite - Renamed to Aspidolite - NOMENCLATURE OF THE MICAS, Thz Canadian Mineralogist, Vol. 36, pp. 90s-912 (1998)
  Phlogopite-Na - Renamed to Aspidolite - NOMENCLATURE OF THE MICAS, Thz Canadian Mineralogist, Vol. 36, pp. 90s-912 (1998)
  Sodium phlogopite - Renamed to Aspidolite - NOMENCLATURE OF THE MICAS, Thz Canadian Mineralogist, Vol. 36, pp. 90s-912 (1998)
  Sodiumphlogopite
 

Aspidolite Image

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  Aspidolite

Comments: B&W thin section (PPL) of a clinopyroxene leuconorite showing Na-rich phlogopite surrounding corroded plagioclase (Pl). (AmMin, v86:29).
Location: Gabbroic crustal zenoliths form Volcan San Pedro, Chilean Andes. Scale: See Image.
© American Mineralogist

Aspidolite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.5776:1:1.1048
Help on Cell Dimensions: Cell Dimensions: a = 5.291, b = 9.16, c = 10.12, Z = 2; beta = 105.1° V = 473.54 Den(Calc)= 2.88
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.62(1)(201,131,130,2009.73(0.8)(100 3.26(0.4)(003 4.57(0.4)(020,110,110 2.55(0.3)(023,131,113,12.45(0.2)(132
 

Physical Properties of Aspidolite

Help on Cleavage: Cleavage: {001} Perfect
Help on Color: Color: Light brown, White, Greenish, Red.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Brittle - Irregular - Very brittle fracture producing irregular fragments
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Aspidolite

Help on Gladstone-Dale: Gladstone-Dale: CI calc= 0.098 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1904,KC= 0.2112
Ncalc = 1.61
Help on Optical Data: Optical Data: Biaxial (-), a=1.53, b=1.557, g=1.558, bire=0.0280
 

Calculated Properties of Aspidolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.86 gm/cc
note: Specific Gravity of Aspidolite =2.88 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.02
Boson Index = 0.98
Help on Photoelectric: Photoelectric: PEAspidolite = 2.52 barns/electron
U=PEAspidolite x relectron= 7.20 barns/cc.
Help on Radioactivity: Radioactivity:

GRapi = 13.62 (Gamma Ray American Petroleum Institute Units)
Concentration of Aspidolite per GRapi unit = 7.34 (%)

Estimated Radioactivity from Aspidolite - barely detectable

 

Aspidolite Classification

Help on  Dana Class: Dana Class: 71.02.02b.13 (71)Phyllosilicate Sheets of Six-Membered Rings
  (71.02)with 2:1 Layers
  (71.02.02b)Mica Group (Biotite subgroup)
 
71.02.02b.01 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.01a Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m
 
71.02.02b.01b Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m
 
71.02.02b.01c Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m
 
71.02.02b.02 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m
 
71.02.02b.03 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m
 
71.02.02b.03a Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m
 
71.02.02b.04 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m
 
71.02.02b.05 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.05a Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m
 
71.02.02b.06 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m
 
71.02.02b.07 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono
 
71.02.02b.08 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m
 
71.02.02b.08a Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m
 
71.02.02b.08b Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono
 
71.02.02b.09 Tainiolite KLiMg2Si4O10F2 C 2/m 2/m
 
71.02.02b.10 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m
 
71.02.02b.11 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m
 
71.02.02b.12 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m
 
71.02.02b.13 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m
 
71.02.02b.14 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m
 
71.02.02b.15 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m
 
71.02.02b.16 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m
 
71.02.02b.18 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m
Help on  Strunz Class: Strunz Class: 09.EC.20 09 - SILICATES (Germanates)
  09.E - Phyllosilicates
  09.EC -Phyllosilicates with mica sheets, composed of tetrahedral and octahedral nets
 
09.EC.20 Annite KFe3AlSi3O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Biotite* K(Mg,Fe)3[AlSi3O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Hendricksite K(Zn,Mg,Mn)3Si3AlO10(OH)2 C 2/m 2/m
 
09.EC.20 Ephesite NaLiAl2(Al2Si2)O10(OH)2 C 2/c 2/m
 
09.EC.20 Aspidolite NaMg3AlSi3O10(OH)2 C 2/m 2/m
 
09.EC.20 Lepidolite K(Li,Al)3(Si,Al)4O10(F,OH)2 C 2/m,Cm Mono
 
09.EC.20 Preiswerkite NaMg2Al3Si2O10(OH)2 C 2/m 2/m
 
09.EC.20 Masutomilite K(Li,Al,Mn)3[(Si,Al)4O10](F,OH)2 C 2/m 2/m
 
09.EC.20 Wonesite (Na,K).5(Mg,Fe,Al)3(Si,Al)4O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Polylithionite KLi2AlSi4O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Phlogopite KMg3(Si3Al)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Norrishite K(Mn2Li)Si4O10(O)2 C 2/m 2/m
 
09.EC.20 Siderophyllite KFe2Al(Al2Si2)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Fluorannite! KFe3AlSi3O10F2 C 2/m 2/m
 
09.EC.20 Shirokshinite! K(NaMg2)Si4O10F2 C 2/m 2/m
 
09.EC.20 Zinnwaldite KLiFeAl(AlSi3)O10(F,OH)2 C 2/m 2/m
 
09.EC.20 Eastonite! KMg2Al[Al2Si2O10](OH)2 2/m
 
09.EC.20 Tetraferriannite K(Fe,Mg)3(Fe,Al)Si3O10(OH)2 C 2/m 2/m
 
09.EC.20 Tetraferriphlogopite! KMg3FeSi3O10(OH)2 2/m
 
09.EC.20 Trilithionite! KLi1.5Al1.5AlSi3O10F2 C 2/m 2/m
 
09.EC.20 Sokolovaite! CsLi2AlSi4O10F2 C 2/m, C 2 or Cm Mono
 
09.EC.20 Shirozulite! KMn3(AlSi3)O10(OH,F)2 C 2/m 2/m
 
09.EC.20 Suhailite! (NH4)Fe3(Si3Al)O10(OH)2 C 2/m? 2/m
 
09.EC.20 Fluorophlogopite! KMg3(AlSi3)O10F2 C 2/m 2/m
 

Other Aspidolite Information

Help on References: References: NAME( AmMin, v91, p1208) PHYS. PROP.(AmMin, v91:1208 & MinMag, v69:1047) OPTIC PROP.(AmMin, v91, p1208)
Help on See Also: See Also: Links to other databases for Aspidolite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

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

Aspidolite

NaMg3AlSi3O10(OH)2
Dana No: 71.02.02b.13 Strunz No: 09.EC.20
Locality:

 

Notes:

 

 
   
 


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