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Collectors Summary

Color dunkelrot
Lustre Glasglanz, Fettglanz
Hardness (Mohs) 5.25
Fracture uneben
Crystal System orthorhombisch, Pbn21, Pbnm

Additional information / Summary

Redefinition von Li(Mg,Fe3+,Mn3+)2(PO4)2 zu LiMg(PO4)

Die Kristalldaten etc beziehen sich bisher noch auf die alte Definition

Chemism

Chemical formula

LiMg(PO4)

Chemical composition

Lithium, Magnesium, Phosphor, Sauerstoff

Unit weight: 126.2177412 u; Number of atoms in the formula: 7

Info

Empirical formula:

LiMg(PO4)

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Lithium

Li

5.50

1

14.29

6.9412000

6.9412000

Oxygen

O

50.70

4

57.14

15.9994300

63.9977200

Magnesium

Mg

19.26

1

14.29

24.3050600

24.3050600

Phosphorus

P

24.54

1

14.29

30.9737612

30.9737612

Analysis wt%

Ø P2O5 : 51.45, Fe2O3 : 17.13, Mn2O3 : 12.34, MgO : 14.07, Li2O : 5.40 (Ref: berechnet)

Strunz 9th edition incl. updates

8.AB.10

8: Phosphate, Arsenate, Vanadate
A: Phosphate, etc., ohne weitere Anionen, ohne H2O
B: Mit mittelgroßen [Kationen]
10:Triphylin-Gruppe

Lapis Classification

VII/A.02-005

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
A: Wasserfreie Phosphate [PO4] 3-, ohne fremde Anionen
2: Mittelgroße Kationen: Fe-Mn vorwiegend

Classification by Hölzel

8.AB.160

8: PHOSPHATES ARSENATES VANADATES
A: Phosphates (-anions -water)
B: Phosphates, C medium Triphylite-Group
1: Triphylite-Group

Dana 8th edition

38.05.07.01

38: Anhydrous Phosphates, etc
05: Anhydrous Phosphates, etc with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Triphylite group

Optical Properties

Color

dunkelrot

Diaphaneity (Transparency)

durchscheinend

Lustre

Glasglanz, Fettglanz

max. Birefringence

0.022

Birefringence chart\! Simferite title=Birefringence chart Simferite

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

1.690 - 1.704

RI value β

1.702 - 1.716

RI value γ / ε

1.712 - 1.726

Ri mean

1.708

2V angle

Biaxial (-) 54° - 60° (gemessen)

Orientation

X = c; Y = a; Z = b

Dispersion

r > v

Pleochroism

X = hellbraun zu rot; Y = bränlichgelb zu braun; Z = gelb zu rötlichgelb

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2, mmm

Space Group number

33, 62

Space Group

Pbn21, Pbnm

Cell parameters a (Å)

5.899

Cell parameters b (Å)

10.101

Cell parameters c (Å)

4.749

Cell parameters a/b or c/a

0.584

Cell parameters c/b

0.470

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

2

Volume (ų)

282.973

X-Ray Powder Diffraction

4.296(90),
3.836(50),
3.473(40),
2.950(70),
2.490(100),
2.432(40),
1.736(30),
1.252(40)

XRD chart Simferite

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)

5.25

VHN (Hardness Vickers)

457 (100g)

Density (g/cm³)

3.23 (gemessen)

1.481 ( ρ calc. Mineralienatlas )

Fracture

uneben

Preface

Associations

Muskovit, Quarz, Oligoklas, Albit, Phlogopit, Turmalin, Apatit

Name from

der Stadt Simferopol, Crimea, Ukraine wo das Mineral untersucht wurde

Author (Name, Year)

Bayrakov & Yakubovich & Simonov & Borisovskiy & Ziborova, 2005

References

Mineralogicheskiy Zhurnal 27 (2005) (2), 112

Doklady Akademii Nauk SSSR 307 (1989), 1119

Bayrakov, V.V., Yakubovich, O.V.- American Mineralogist: 78 (1993), 452

American Mineralogist 91 (2006), 1201-1209 - [Abstrakt]

CNMNC Newsletter 70, Eur. J. Mineral., 34, https://doi.org/10.5194/ejm-34-591-2022, 2022 [Redefinition]

IMA group assignments


 
 
Fe3+PO4
orthorhombisch
Pmnb

 
 
NaFe2+(PO4)
orthorhombisch
Pbnm

 
 
LiMnPO4
orthorhombisch
Pmnb

 
 
NaMnPO4
orthorhombisch
Pnam

 
 
Mn3+(PO4)
orthorhombisch
Pmnb

 
 
LiMg(PO4)
orthorhombisch
Pbn21, Pbnm

 
 
LiFe2+PO4
orthorhombisch
Pbnm

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Actuality: 03. Oct 2024 - 20:09:27

Other languages

German

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Spanish

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English

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French

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Russian

Симферит

Traditional Chinese

磷鋰鎂石

Simplified Chinese

磷锂镁石

Japanese

シンフェライト

Alternative Name

Simferopolite

Traditional Chinese

磷鎂鋰石

Simplified Chinese

磷镁锂石

CNMNC (IMA)-Number

IMA 1989-016

CNMNC symbol

Symbol

Smf

Locations with GPS information

IDs

GUSID (Global unique identifier short form) gw_qi_p-3EuZJIjdSTsH3g
GUID (Global unique identifier) 8BEA0F83-7EFA-4BDC-9924-88DD493B07DE
Database ID 3533