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Trattnerite Mineral Data
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General Trattnerite Information
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 Chemical Formula: |
(Fe,Mg)2(Mg,Fe)3(Si12O30) |
| Composition: |
Molecular Weight = 1,017.34 gm |
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Potassium 0.27 % K 0.32 % K2O |
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Sodium 0.07 % Na 0.09 % Na2O |
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Magnesium 5.88 % Mg 9.75 % MgO |
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Titanium 0.05 % Ti 0.08 % TiO2 |
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Manganese 0.43 % Mn 0.56 % MnO |
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Aluminum 0.11 % Al 0.20 % Al2O3 |
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Zinc 0.32 % Zn 0.40 % ZnO |
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Iron 12.57 % Fe 2.12 % FeO / 15.62 % Fe2O3 |
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Silicon 33.13 % Si 70.87 % SiO2 |
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Oxygen 47.18 % O |
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______ ______ |
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100.00 % 100.01 % = TOTAL OXIDE |
| Empirical Formula: |
K0.07Na0.03Mg2.46Fe3+1.99Fe2+0.3Mn2+0.08Zn0.05Al0.04Ti0.01Si12O30 |
| Environment: |
In small cavities of a silica-rich xenolith in a ha�yne nephelinite lava flow. Milarite group; structure determined |
| IMA Status: |
Approved IMA 2004 (Dana # Added) |
| Locality: |
In a quarry near the village of Wilhelmsdorf, south-southeast of Bad Gleichenberg, eastern Styria, Austria Link to MinDat.org Location Data. |
| Name Origin: |
Named for Walter Trattner, a mineral collector with excellent knowledge of the mineralogy of the area in which the species was found. |
| Synonym: |
IMA2002-002 |
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Trattnerite Image |
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Images:
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Trattnerite
Comments: Dark-blue hexagonal plate of trattnerite in matrix.
Location: Stradner Kogel Mountain, Wilhelmsdorf, Bad Gleichenberg, Styria, Austria.
Scale: See Image.
© Rruff Database |
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Trattnerite Crystallography
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| Axial Ratios: |
a:c = 1:1.42666 |
| Cell Dimensions: |
a = 10.05, c = 14.338, Z = 2; V = 1,254.16 Den(Calc)= 2.69 |
| Crystal System: |
Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 6/mcc |
| X Ray Diffraction: |
By Intensity(I/Io): 7.17(1)(002), 8.7(0.97)(100), 5.535(0.96)(102),3.207(0.85)(211), 5.026(0.61)(110), 4.352(0.53)(200), 2.767(0.38)(204), 4.115(0.37)(112), |
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Physical Properties of Trattnerite
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| Cleavage: |
{001} Good, {100} Poor |
| Color: |
Deep blue, Yellowish green. |
| Diaphaneity: |
Translucent |
| Fracture: |
Brittle - Generally displayed by glasses and most non-metallic minerals. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Luster: |
Vitreous (Glassy) |
| Streak: |
white |
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Optical Properties of Trattnerite
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| Gladstone-Dale: |
CI calc= 0.022 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2184,KC= 0.2234
Ncalc = 1.6 |
| Optical Data: |
Uniaxial (-), e=1.586, w=1.589, bire=0.0030. |
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Calculated Properties of Trattnerite
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| Electron Density: |
Bulk Density (Electron Density)=2.66 gm/cc
note: Specific Gravity of Trattnerite =2.69 gm/cc.
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| Fermion Index: |
Fermion Index = 0.02
Boson Index = 0.98 |
| Photoelectric: |
PETrattnerite = 5.42 barns/electron
U=PETrattnerite x relectron= 14.40 barns/cc.
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| Radioactivity: |
GRapi = 3.86 (Gamma Ray American Petroleum Institute Units)
Concentration of Trattnerite per GRapi unit = 25.90 (%)
Estimated Radioactivity from Trattnerite  - barely detectable
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Trattnerite Classification
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| Dana Class: |
63.02.01a.17 (63)Cyclosilicate Condensed Rings |
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(63.02)6-membered rings |
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(63.02.01a)Milarite - Osumilite group (Milarite - Osumilite subgroup) |
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63.02.01a.01 Brannockite KSn2Li3Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.02 Chayesite K(Mg,Fe)4Fe(Si12O30) P 6/mcc 6/m 2/m 2/m |
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63.02.01a.03 Darapiosite KNa2Zr[Li(Mn,Zr)2Si12O30] P 6/mcc 6/m 2/m 2/m |
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63.02.01a.04 Eifelite KNa3Mg4Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.05 Merrihueite (K,Na)2(Fe,Mg)5Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.06 Osumilite-(Fe) (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.07 Osumilite-(Mg) (K,Na)(Mg,Fe)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.08 Poudretteite KNa2B3Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.09 Sugilite KNa2(Fe,Mn,Al)2Li3Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.10 Yagiite (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 P 6/mmc 6/m 2/m 2/m |
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63.02.01a.11 Dusmatovite K(K,Na,[])(Mn,Y,Zr)2(Zn,Li)3Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.12 Milarite K2Ca4Al2Be4Si24O60•(H2O) P 6/mcc 6/m 2/m 2/m |
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63.02.01a.13 Sogdianite (K,Na)2(Li,Fe,Al)3ZrSi12O30 P 6/mmm 6/m 2/m 2/m |
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63.02.01a.14 Roedderite (Na,K)2(Mg,Fe)5Si12O30 P 63/mmc 6/m 2/m 2/m |
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63.02.01a.15 Berezanskite! KLi3Ti2Si12O30 P 6/mcc 6/m 2/m 2/m |
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63.02.01a.16 Shibkovite! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) P 6/mcc 6/m 2/m 2/m |
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63.02.01a.17 Trattnerite! (Fe,Mg)2(Mg,Fe)3(Si12O30) P 6/mcc 6/m 2/m 2/m |
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63.02.01a.18 Almarudite! K([],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] P 6/mcc 6/m 2/m 2/m |
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63.02.01a.19 Oftedalite! (Sc,Ca)2KBe3Si12O30 P 6/mmc 6/m 2/m 2/m |
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63.02.01a.20 Klochite ([]1Na1)KFe2Zn3[Si12O30] P 6/mcc 6/m 2/m 2/m |
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63.02.01a.21 Friedrichbeckeite! K([],Na)Mg2(Be2Mg)Si12O30 P 6/mcc 6/m 2/m 2/m |
| Strunz Class: |
09.CM.05 09 - SILICATES (Germanates) |
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09.C - Cyclosilicates |
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09.CM -[Si6O18]12- 6-membered double rings (sechser-Doppelringe) |
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09.CM.05 Brannockite KSn2Li3Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Armenite BaCa2Al6Si9O30•2(H2O) Pnc2 mm2 |
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09.CM.05 Berezanskite! KLi3Ti2Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Dusmatovite K(K,Na,[])(Mn,Y,Zr)2(Zn,Li)3Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Chayesite K(Mg,Fe)4Fe(Si12O30) P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Shibkovite! K(Ca,Mn,Na)2(K2-x,[]x)2ZnSi12O30(x~0.8) P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Eifelite KNa3Mg4Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Darapiosite KNa2Zr[Li(Mn,Zr)2Si12O30] P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Merrihueite (K,Na)2(Fe,Mg)5Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Roedderite (Na,K)2(Mg,Fe)5Si12O30 P 63/mmc 6/m 2/m 2/m |
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09.CM.05 Milarite K2Ca4Al2Be4Si24O60•(H2O) P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Osumilite-(Fe) (K,Na)(Fe,Mg)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Osumilite-(Mg) (K,Na)(Mg,Fe)2(Al,Fe)3(Si,Al)12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Poudretteite KNa2B3Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Sugilite KNa2(Fe,Mn,Al)2Li3Si12O30 P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Sogdianite (K,Na)2(Li,Fe,Al)3ZrSi12O30 P 6/mmm 6/m 2/m 2/m |
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09.CM.05 Oftedalite! (Sc,Ca)2KBe3Si12O30 P 6/mmc 6/m 2/m 2/m |
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09.CM.05 Yagiite (Na,K)3Mg4(Al,Mg)6(Si,Al)24O60 P 6/mmc 6/m 2/m 2/m |
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09.CM.05 Trattnerite! (Fe,Mg)2(Mg,Fe)3(Si12O30) P 6/mcc 6/m 2/m 2/m |
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09.CM.05 Almarudite! K([],Na)2(Mn,Fe,Mg)2(Be,Al)3[Si12O30] P 6/mcc 6/m 2/m 2/m |
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Other Trattnerite Information
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| References: |
NAME( CanMin, 42:1926) PHYS. PROP.(CanMin, 42:1926) OPTIC PROP.(CanMin, 42:1926) |
| See Also: |
Links to other databases for Trattnerite :
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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Trattnerite
(Fe,Mg)2(Mg,Fe)3(Si12O30)
Dana No: 63.02.01a.17 Strunz No: 09.CM.05
Locality:
Notes:
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