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Triplite Mineral Data

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General Triplite Information

Help on Chemical  Formula: Chemical Formula: (Mn,Fe++,Mg,Ca)2(PO4)(F,OH)
Help on Composition: Composition: Molecular Weight = 211.64 gm
   Calcium      3.79 %  Ca    5.30 % CaO
   Magnesium    3.45 %  Mg    5.71 % MgO
   Manganese   25.96 %  Mn   33.52 % MnO
   Iron        13.19 %  Fe   16.97 % FeO
   Phosphorus  14.64 %  P    33.53 % P2O5
   Hydrogen     0.12 %  H     1.06 % H2O
   Oxygen      32.13 %  O
   Fluorine     6.73 %  F     6.73 % F
                 -   %   F    -2.83 % -O=F2    
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Mn2+Fe2+0.5Mg0.3Ca0.2(PO4)F0.75(OH)0.25
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1813
Help on Locality: Locality: Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek triplos - "triplex."
Help on Name Pronunciation: Name Pronunciation: Triplite Say TRIPLITE
Help on Synonym: Synonym: ICSD 4428
  PDF 25-1080
 

Triplite Image

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  Triplite

Comments: Dark brown vitreous triplite.
Location: Abravazes Pegmatite, Beira Alta, Viseu, Portugal. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Triplite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =1.8489:1:1.5162
Help on Cell Dimensions: Cell Dimensions: a = 12.085, b = 6.536, c = 9.91, Z = 8; beta = 105.633° V = 753.81 Den(Calc)= 3.73
Help on Crystal System: Crystal System: Monoclinic - Prismatic H-M Symbol (2/m) Space Group: I2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.87(1), 3.05(0.9), 3.26(0.7),
Help on Forms: Forms:

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Drag1 - Manipulate Crystal
Drag2 - Resize

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I - Indicies
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M - Menu

Help on Above

Forms: ( 2 1 1) ( 1 0 1) ( 0 1 0) ( 1 1 0) ( 0 1 1) ( 1 0 0) ( 0 0 1)

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Physical Properties of Triplite

Help on Cleavage: Cleavage: {010} Good, {100} Distinct
Help on Color: Color: Brown, Dark brown, Salmon pink, Brownish black, Black.
Help on Density: Density: 3.44 - 3.9, Average = 3.67
Help on Diaphaneity: Diaphaneity: Subtranslucent to opaque
Help on Fracture: Fracture: Uneven - Flat surfaces (not cleavage) fractured in an uneven pattern.
Help on Habit: Habit: Massive - Granular - Common texture observed in granite and other igneous rock.
Help on Hardness: Hardness: 5 - Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Resinous - Greasy
Help on Streak: Streak: yellowish gray
 

Optical Properties of Triplite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.042 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= 0.057 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1778,KPDmeas= 0.1807,KC= 0.1886
Ncalc = 1.65 - 1.74
Help on Optical Data: Optical Data: Biaxial (+), a=1.65, b=1.66, g=1.68, bire=0.0300, 2V(Calc)=72, 2V(Meas)=70-90. Dispersion relatively strong.
 

Calculated Properties of Triplite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.52 gm/cc
note: Specific Gravity of Triplite =3.67 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0064478437
Boson Index = 0.9935521563
Help on Photoelectric: Photoelectric: PETriplite = 11.97 barns/electron
U=PETriplite x rElectron Density= 42.18 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Triplite is Not Radioactive
 

Triplite Classification

Help on  Dana Class: Dana Class: 41.06.01.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.06)where (A)2 (XO4) Zq
  (41.06.01)Zwieselite Group
 
41.06.01.01 Zwieselite (Fe,Mn)2(PO4)F I2/a 2/m
 
41.06.01.02 Triplite (Mn,Fe,Mg,Ca)2(PO4)(F,OH) I2/m 2/m
 
41.06.01.03 Magniotriplite? (Mg,Fe,Mn)2(PO4)F P 21/a 2/m
Help on  Strunz Class: Strunz Class: 08.BB.10 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BB -With only medium-sized cations, (OH, etc.):RO4 � 1:1
 
08.BB.10 Magniotriplite? (Mg,Fe,Mn)2(PO4)F P 21/a 2/m
 
08.BB.10 Hydroxylwagnerite! Mg2(PO4)(OH) P 21/c 2/m
 
08.BB.10 Triplite (Mn,Fe,Mg,Ca)2(PO4)(F,OH) I2/m 2/m
 
08.BB.10 Zwieselite (Fe,Mn)2(PO4)F I2/a 2/m
 

Other Triplite Information

Help on References: References: NAME( Duda&Rejl90) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Triplite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - Scandinavian mineral gallery
16 - WWW-MINCRYST

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

Triplite

(Mn,Fe++,Mg,Ca)2(PO4)(F,OH)
Dana No: 41.06.01.02 Strunz No: 08.BB.10
Locality:

 

Notes:

 

 
   
 


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