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Tavorite (Tavorit)

Pictures (4 Images total)

Tavorit
Views (Image: 1333222003): 923
Tavorit (SNr: A012131)

Winzige tafelige gelbgrüne Kristalle mit Hureaulith, BB = 4 mm , Fundort: Sandamab-Pegmatit, Usakos, Karibib District, Namibia

Collection: Lithothek der Münchener Micromounter
Copyright: Heribert Rotter
Contribution: Münchener Micromounter 2012-03-31
Locality: Sandamap (Sandamab)-Pegmatit / Sandamap North Farm 115 / Usakos / Karibib, Kreis / Erongo, Region / Namibia
Tavorit
Views (Image: 1271690925): 980
Tavorit

Bildbreite: 4 mm, Fundort: Tip Top Mine, Fourmile, Custer Distrikt, Custer Co., South Dakota, USA

Copyright: Luigi Chiappino
Contribution: thdun5 2010-04-19
Locality: Tip Top Mine / Fourmile / Custer District / Custer Co. / South Dakota / USA
Tavorit
Views (Image: 1343989555): 831
Tavorit (SNr: A000027)

FO: Hagendorf-Süd; grünlich-gelbe, derb-krustige wachsartige Einsprenglinge auf strahligem Rockbridgeit; BB = 8 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Manfred Früchtl
Contribution: Münchener Micromounter 2012-08-03
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland
TAVORIT - Grube Hagendorf-Süd, Oberpfalz
Views (Image: 1491772425): 312
TAVORIT - Grube Hagendorf-Süd, Oberpfalz (SNr: 02932.)

TAVORIT - aus der Pegmatit Grube Hagendorf-Süd nahe Pleystein in der Oberpfalz, Bayern, (D); BB.: ca. 3mm

Collection: Daniel Neumann
Copyright: Daniel Neumann
Contribution: Neumann 2017-04-09
Locality: Hagendorf-Süd (Grube Cornelia) / Hagendorf / Waidhaus / Neustadt an der Waldnaab, Landkreis / Oberpfalz, Bezirk / Bayern / Deutschland

Collectors Summary

Color grasgrün, grünlichgelb, gelbgrün, gelb
Streak color hellgrün
Hardness (Mohs) 5
Solubility +++ heiße verdünnte HCl, + heiße verdünnte HNO3, heiße verdünnte H2SO4
Crystal System triklin, P1

Chemism

Chemical formula

LiFe3+(PO4)(OH)

Chemical composition

Eisen, Lithium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 174.7652582 u; Number of atoms in the formula: 9

Info

Empirical formula:

LiFe(PO4)(OH)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.58

1

11.11

1.0079470

1.0079470

Lithium

Li

3.97

1

11.11

6.9412000

6.9412000

Oxygen

O

45.77

5

55.56

15.9994300

79.9971500

Phosphorus

P

17.72

1

11.11

30.9737612

30.9737612

Iron

Fe

31.95

1

11.11

55.8452000

55.8452000

Analysis wt%

Li2O : 7.64, MnO : 1.47, FeO : 2.39, Fe2O3 : 42.57, P2O5 : 39.78, H2O : 6.16 (Ref: American Mineralogist 58)

Strunz 9th edition incl. updates

8.BB.05

8: Phosphate, Arsenate, Vanadate
B: Phosphate, etc., mit weitere Anionen, ohne H2O
B: Mit ausschließlich mittelgroßen [Kationen], (OH, etc.): RO4 ≤ 1:1
05:Amblygonit-Gruppe

Lapis Classification

VII/B.02-060

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
B: Wasserfreie Phosphate, mit fremden Anionen F,Cl,O,OH
2: Mittelgroße Kationen: Mg-Mn-Fe-Cu-Zn; Amblygonit-Gruppe

Classification by Hölzel

8.BA.540

8: PHOSPHATES ARSENATES VANADATES
B: Phosphates (+Anions -Water)
A: Phosphates, C Be,Li
5: Li-Phosphates, C medium Amblygonite-Group

Dana 8th edition

41.05.09.01

41: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
05: Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen where (A B)2 (XO4) Zq

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

grasgrün, grünlichgelb, gelbgrün, gelb

Streak color

hellgrün

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.065

Birefringence chart\! Tavorite title=Birefringence chart Tavorite

Michel-Levy Color Chart viewed according to the maximum birefringence (at 30μm). Mineral color is not taken into account. Click on the image to enlarge or change thickness.

RI value α / ω / n

1.795

RI value β

1.81

RI value γ / ε

1.86

Ri mean

1.822

2V angle

Biaxial (+) 50°

Crystallography

Crystal System

triklin

Class (H-M)

1

Space Group number

2

Space Group

P1

Cell parameters a (Å)

5.340

Cell parameters b (Å)

7.283

Cell parameters c (Å)

5.110

Cell parameters a/b or c/a

0.733

Cell parameters c/b

0.702

Cell parameters α

109.28

Cell parameters β

97.87

Cell parameters γ

106.32

Z

2

Volumne (ų)

174.146

X-Ray Powder Diffraction

4.97(60),
4.77(50),
4.66(60),
3.94(40),
3.323(70),
3.271(100),
3.037(90),
2.461(50)

XRD chart Tavorite

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

5

VHN (Hardness Vickers)

390 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.288

3.333 ( ρ calc. Mineralienatlas )

Instability

+++ heiße verdünnte HCl, + heiße verdünnte HNO3, heiße verdünnte H2SO4

Preface

Author (Name, Year)

Lindberg & Pecora, 1955

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 583

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Amblygonite

(Li,Na)Al(PO4)(F,OH)

triklin : 1 : C1

8.BB.05

'Amblygonite-Group'

AB(PO4)X

8.BB.05

Montebrasite

LiAl(PO4)(OH,F)

triklin : 1 : C1

8.BB.05

'Natromontebrasite'

(Na,Li)Al(PO4)(OH,F)

triklin : 1 : P1

8.BB.05

Tavorite

LiFe3+(PO4)(OH)

triklin : 1 : P1

8.BB.05

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Griphite

Ca(Mn2+,Na,Li)6Fe2+Al2(PO4)6(F,OH)2

kubisch : m3 : Pa3

VII/B.02-010

Tancoite

HNa2LiAl(PO4)2(OH)

orthorhombisch : mmm : Pbcb

VII/B.02-020

Amblygonite

(Li,Na)Al(PO4)(F,OH)

triklin : 1 : C1

VII/B.02-030

Montebrasite

LiAl(PO4)(OH,F)

triklin : 1 : C1

VII/B.02-040

Tavorite

LiFe3+(PO4)(OH)

triklin : 1 : P1

VII/B.02-060

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Amblygonite

(Li,Na)Al(PO4)(F,OH)

triklin : 1 : C1

8.BA.500

Montebrasite

LiAl(PO4)(OH,F)

triklin : 1 : C1

8.BA.510

'Natromontebrasite'

(Na,Li)Al(PO4)(OH,F)

triklin : 1 : P1

8.BA.520

Tavorite

LiFe3+(PO4)(OH)

triklin : 1 : P1

8.BA.540

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Adelite

CaMg(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.01

Conichalcite

CaCu(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.02

Austinite

CaZn(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.03

Gabrielsonite

PbFe3+(As3+O3)O

orthorhombisch : mm2 : P21ma

41.05.01.05

Tangeite

CaCuVO4(OH)

orthorhombisch : 222 : P212121

41.05.01.06

Nickelaustinite

Ca(Ni,Zn)(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.07

Cobaltaustinite

CaCo(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.08

Arsendescloizite

PbZn(AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.09

Gottlobite

CaMg(VO4,AsO4)(OH)

orthorhombisch : 222 : P212121

41.05.01.10

Descloizite

PbZn(VO4)(OH)

orthorhombisch : mmm : Pnma

41.05.02.01

Mottramite

PbCu(VO4)(OH)

orthorhombisch : mmm : Pnma

41.05.02.02

Pyrobelonite

PbMn2+VO4(OH)

orthorhombisch : mmm : Pnma

41.05.02.03

Čechite

Pb(Fe2+,Mn)(VO4)(OH)

orthorhombisch : mmm : Pnam

41.05.02.04

Babefphite

BaBePO4F

triklin : 1 : F1

41.05.03.01

Herderite

CaBe(PO4)F

monoklin : 2/m : P21/a

41.05.04.01

Hydroxylherderite

CaBe(PO4)(OH)

monoklin : 2/m : P21/a

41.05.04.02

Väyrynenite

MnBe(PO4)(OH,F)

monoklin : 2/m : P21/a

41.05.04.03

Bergslagite

CaBe(AsO4)(OH)

monoklin : 2/m : P21/c

41.05.04.04

Lacroixite

NaAl(PO4)F

monoklin : 2/m : C2/c

41.05.05.01

Durangite

NaAl(AsO4)F

monoklin : 2/m : C2/c

41.05.05.02

Maxwellite

(Na,Ca)(Fe3+,Al,Mg)(AsO4)(F,O)

monoklin : 2/m : C2/c

41.05.05.03

Tilasite

CaMg(AsO4)F

monoklin : 2/m : C2/c

41.05.06.01

Isokite

CaMg(PO4)F

monoklin : 2/m : A2/a

41.05.06.02

'Panasqueiraite'

Ca(Mg,Fe2+)[(OH,F)|PO4]

41.05.06.03

Brazilianite

NaAl3(PO4)2(OH)4

monoklin : 2/m : P21/n

41.05.07.01

Amblygonite

(Li,Na)Al(PO4)(F,OH)

triklin : 1 : C1

41.05.08.01

Montebrasite

LiAl(PO4)(OH,F)

triklin : 1 : C1

41.05.08.02

Tavorite

LiFe3+(PO4)(OH)

triklin : 1 : P1

41.05.09.01

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Таворит

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