Amblygonite Mineral Data + Say AMBLYGONITE

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General Amblygonite Information

Help on Chemical  Formula: Chemical Formula: (Li,Na)Al(PO4)(F,OH)
Help on Composition: Composition: Molecular Weight = 151.41 gm
   Sodium       3.80 %  Na    5.12 % Na2O
   Lithium      3.44 %  Li    7.40 % Li2O
   Aluminum    17.82 %  Al   33.67 % Al2O3
   Phosphorus  20.46 %  P    46.88 % P2O5
   Hydrogen     0.17 %  H     1.49 % H2O
   Oxygen      44.91 %  O
   Fluorine     9.41 %  F     9.41 % F
                 -   %  F    -3.96 % -O=F2
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Li0.75Na0.25Al(PO4)F0.75(OH)0.25
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1817
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek amblys - "blunt" and goni - "angle."
Help on Synonym: Synonym: ICSD 26513
  PDF 22-1138
 

Amblygonite Image

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Amblygonite

Comments: Grayish, massive amblygonite from the type locality.
Location: Chursdorf, Penig, Chemnitz, Saxony, Germany. Scale: Specimen size 35 mm.
© Thomas Witzke / Abraxas-Verlag

Amblygonite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.7289:1:0.7078
Help on Cell Dimensions: Cell Dimensions: a = 5.19, b = 7.12, c = 5.04, Z = 2; alpha = 112.033°, beta = 97.816°, gamma = 68.116° V = 158.71 Den(Calc)= 3.17
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.925(1), 3.151(1), 4.64(1),
Help on Forms: Forms:

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Forms: [ 3 3 2] [ 0 1 1] [ 0 1 0] [ 0 2 1] [ 1 1 0] [ 1 0 0] [ 0 0 1]

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Groat L A , Raudsepp M , Hawthorne F C , Ercit T S , Sherriff B L , Hartman J S , American Mineralogist , 75 (1990) p.992-1008, The amblygonite-montebrasite series: Characterization by single-crystal, structure refinement, infrared spectroscopy and multinuclear MAS-NMR, spectroscopy, sample AF-65

View Additional jPOWD Structure files for Amblygonite
[1] [2] [3] [4] [5]
 

Physical Properties of Amblygonite

Help on Cleavage: Cleavage: [100] Perfect, [110] Good, [011] Distinct
Help on Color: Color: White, Yellow, Gray, Bluish gray, Greenish gray.
Help on Density: Density: 2.98 - 3.11, Average = 3.04
Help on Diaphaniety: Diaphaniety: Transparent to Subtransparent to translucent
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Columnar - Forms columns
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Hardness: Hardness: 5.5-6 - Knife Blade-Orthoclase
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Vitreous - Pearly
Help on Streak: Streak: white
 

Optical Properties of Amblygonite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.004 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.036 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1903,KPDmeas= 0.1981,KC= 0.1974
Help on Optical Data: Optical Data: Biaxial (-), a=1.58-1.6, b=1.59-1.62, g=1.6-1.63, bire=0.0200-0.0300, 2V(Calc)=68-88, 2V(Meas)=50.
 

Calculated Properties of Amblygonite

Help on Electron Density: Electron Density:

relectron=2.98 gm/cc
note: rAmblygonite =3.05 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00279
Boson Index = 0.99721
Help on Photoelectric: Photoelectric:

PEAmblygonite = 1.64 barns/electron
U=PEAmblygonite x relectron= 4.87 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Amblygonite is Not Radioactive

 

Amblygonite Classification

Help on  Dana Class: Dana Class: 41.5.8.1 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.5)where (A B)2 (XO4) Zq
  (41.5.8)Dana Group
 
41.5.8.1 Amblygonite (Li,Na)Al(PO4)(F,OH) P1 1
 
41.5.8.2 Montebrasite LiAl(PO4)(OH,F) P1 1
 
41.5.8.3 Natromontebrasite (Na,Li)Al(PO4)(OH,F) P1 1
Help on  Strunz Class: Strunz Class: VII/B.02-30 VII - Phosphates, Arsenates and Vanadates
  VII/B - Waterfree phosphates with unfamiliar anions F, Cl, O,OH, cations of medium size: Mg, Mn, Fe, Cu, Zn, Pseudomalachite group and related compounds
  VII/B.02 - Amblygonite group, Griphite - Tavorite
 
VII/B.02-10 Griphite Ca(Mn,Na,Li)6FeAl2(PO4)6(F,OH)2 P a3 2/m 3
 
VII/B.02-20 Tancoite HNa2LiAl(PO4)2(OH) Pbcb 2/m 2/m 2/m
 
VII/B.02-30 Amblygonite (Li,Na)Al(PO4)(F,OH) P1 1
 
VII/B.02-40 Montebrasite LiAl(PO4)(OH,F) P1 1
 
VII/B.02-50 Natromontebrasite (Na,Li)Al(PO4)(OH,F) P1 1
 
VII/B.02-60 Tavorite LiFe(PO4)(OH) P1 or P1 Tri
 

Other Amblygonite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Mason68)
Help on See Also: See Also: Links to other databases for Amblygonite :
1 -Am. Min. Crystal Structure Database 2 - Amethyst Galleries' Mineral Gallery 3 -Athena 4 - Crocoite.com Mineral Locations 5 - EUROmin Project 6 -Google Images 7 -Google Scholar 8 -Handbook of Mineralogy (UofA) 9 -MinDAT 10 -MinMax(Deutsch) 11 -MinMax(English) 12 -Mineralienatlas (Deutsch) 13 - Minerals of Wisconsin 14 -QUT Mineral Atlas 15 - Scandinavian mineral gallery 16 - Tradeshop.com - The Rainbow of Gems 17 - WWW-MINCRYST 18 -École des Mines de Paris

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

Amblygonite

(Li,Na)Al(PO4)(F,OH)
Dana No: 41.5.8.1 Strunz No: VII/B.02-30
Locality:

 

Notes:

 

 
   
 
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