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Tinzenite Mineral Data

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General Tinzenite Information

Help on Chemical  Formula: Chemical Formula: (Ca,Mn,Fe)3Al2BO3Si4O12(OH)
Help on Composition: Composition: Molecular Weight = 572.45 gm
   Calcium    12.60 %  Ca   17.63 % CaO
   Manganese   8.64 %  Mn   11.15 % MnO
   Aluminum    9.43 %  Al   17.81 % Al2O3
   Iron        2.93 %  Fe    3.77 % FeO
   Silicon    19.62 %  Si   41.98 % SiO2
   Boron       1.89 %  B     6.08 % B2O3
   Hydrogen    0.18 %  H     1.57 % H2O
   Oxygen     44.72 %  O
             ______        ______ 
             100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ca1.8Mn2+0.9Fe2+0.3Al2(BO3)Si4O12(OH)
Help on Environment: Environment: Quartz veins in manganese deposits.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1923
Help on Locality: Locality: Tinzen, Val d'Err, Grisons, Switzerland Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its locality.
Help on Name Pronunciation: Name Pronunciation: Tinzenite + Pronunciation Say TINZENITE
Help on Synonym: Synonym: Axinite
  ICSD 85086
  PDF 6-444

Tinzenite Image

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Comments: Orange crystalline tinzenite with quartz and black braunite.
Location: Cassagne mine, near Chiavari, Liguria, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Orange bladed aggregate of tinzenite crystals and clear quartz.
Location: Molinello mine, Val Graveglia, Italy. Scale: 5.8x3.6x3.3 cm.
© Richard Dale / Dale Minerals

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  Epidote-(Sr)   Tinzenite

Comments: B&W image of a radial aggregate of epidote-(Sr) in tinzenite. (Journal of Mineralogical and Petrological Sciences, v103:400).
Location: Nagakawara and Hohnomori deposits at the Ananai mine, Kochi Prefecture, Japan. Scale: See Image.
© Journal of Mineralogical and Petrological Sciences

Tinzenite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9796:1:0.7791
Help on Cell Dimensions: Cell Dimensions: a = 8.988, b = 9.175, c = 7.149, Z = 2; alpha = 102.9°, beta = 98.1°, gamma = 88° V = 568.58 Den(Calc)= 3.34
Help on Crystal System: Crystal System: Triclinic - Pinacoidal H-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.812(1), 3.46(0.8), 6.3(0.7),
Help on Forms: Forms:

Dbl Clk - Start-Stop Rotation
RMB - Cycle Display Modes
Drag1 - Manipulate Crystal
Drag2 - Resize

S - Stereo
I - Indicies
<space> - Start-Stop Rotation
F - Fit to Screen
M - Menu

Help on Above

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

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Physical Properties of Tinzenite

Help on Cleavage: Cleavage: {???} Good, {???} Good
Help on Color: Color: Yellow, Orange red.
Help on Density: Density: 3.29
Help on Diaphaneity: Diaphaneity: Translucent to subtranslucent
Help on Habit: Habit: Columnar - Forms columns
Help on Hardness: Hardness: 6.5-7 - Pyrite-Quartz
Help on Luster: Luster: Vitreous (Glassy)

Optical Properties of Tinzenite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.019 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.003 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2094,KPDmeas= 0.2126,KC= 0.2087
Ncalc = 1.69 - 1.7
Help on Optical Data: Optical Data: Biaxial (-), a=1.693, b=1.701, g=1.704, bire=0.0110, 2V(Calc)=62, 2V(Meas)=62.

Calculated Properties of Tinzenite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.29 gm/cc
note: Specific Gravity of Tinzenite =3.34 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PETinzenite = 5.65 barns/electron
U=PETinzenite x rElectron Density= 18.60 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tinzenite is Not Radioactive

Tinzenite Classification

Help on  Dana Class: Dana Class: (56)Sorosilicate Si2O7 Groups and O, OH, F. and H2O
  (56.02)with cations in [4] and/or >[4] coordination
  (56.02.02)Axinite group Axinite-(Fe) Ca2FeAl2BO3Si4O12(OH) P1 1 Axinite-(Mg) Ca2MgAl2BO3Si4O12(OH) P1 1 Axinite-(Mn) Ca2MnAl2BO3Si4O12(OH) P1 1 Tinzenite (Ca,Mn,Fe)3Al2BO3Si4O12(OH) P1 1
Help on  Strunz Class: Strunz Class: 09.BD.20 09 - SILICATES (Germanates)
  09.B - Sorosilicates
  09.BD -Si2O7 groups with additional anions;
09.BD.20 Axinite-(Fe) Ca2FeAl2BO3Si4O12(OH) P1 1
09.BD.20 Axinite-(Mg) Ca2MgAl2BO3Si4O12(OH) P1 1
09.BD.20 Axinite-(Mn) Ca2MnAl2BO3Si4O12(OH) P1 1
09.BD.20 Tinzenite (Ca,Mn,Fe)3Al2BO3Si4O12(OH) P1 1

Other Tinzenite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Tinzenite :
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

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Dana No: Strunz No: 09.BD.20





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