https://www.edelsteine-neuburg.de
https://www.mineralbox.biz
https://www.mineral-bosse.de
https://www.mineraliengrosshandel.com
'._('einklappen').'
 

Manganocummingtonite (Manganocummingtonit)

Pictures (1 Images total)

Manganocummingtonit (Tirodit)
Views (Image: 1077323954): 1916
Manganocummingtonit (Tirodit)

Größe: 1,0 x 0,5 cm; Fundort: Tirodi Mine, Tirodi, Madhya Pradesh, Indien

Copyright: McSchuerf
Contribution: Mineralienatlas 2004-02-21
Locality: Tirodi / Balaghat, Distrikt / Madhya Pradesh / Indien

Collectors Summary

Color schwarzbraun/strohgelb/grünlichweiß
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 6 - 6.5
Crystal System monoklin, C2/m
Morphology Kristalle rhomboedrisch bis tafelig; nadelig

Additional information / Summary

Scheint mit IMA 2016-111 in Klino-Suenoit umbenannt worden zu sein.

Chemism

Chem­ical formula

☐Mn2(Mg,Fe)5Si8O22(OH)2

Chem­ical com­po­si­tion

Eisen, Magnesium, Mangan, Silicium, Sauerstoff, Wasserstoff, Vakanz

Unit weight: 881.51302881 u; Number of atoms in the formula: 42

Info

Empirical formula:

VcMn2(Mg0.75Fe0.25)5Si8O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Vacancy

Vc

0.00

1

2.38

0.0000000

0.0000000

Hydrogen

H

0.23

2

4.76

1.0079470

2.0158940

Oxygen

O

43.56

24

57.14

15.9994300

383.9863200

Magnesium

Mg

10.34

3.75

8.93

24.3050600

91.1439750

Silicon

Si

25.49

8

19.05

28.0855300

224.6842400

Manganese

Mn

12.46

2

4.76

54.9380499

109.8760998

Iron

Fe

7.92

1.25

2.98

55.8452000

69.8065000

Anal­y­sis wt%

SiO2 : 58.80, Fe2O3 : 1.20, MgO : 24.80, CaO : 2.72, MnO : 10.08, H2O : 2.54 (Ref: American Mineralogist 61)

Strunz 9th edi­tion incl. updates

9.DE.05

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
05:Anthophyllit (Ath) Amphibole

Lapis Clas­sifica­tion

VIII/F.07-040

VIII: SILIKATE
F: Ketten- und Bandsilikate
7: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Mg-Fe-Mn-Amphibole

Clas­sifica­tion by Hölzel

9.DG.140

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
G: Amphiboles; Monoclinic Amphiboles
1: Cummingtonite-Grünerite-Group

Dana 8th edi­tion

66.01.01.04

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
01: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 amphibole configuration
01: Group 1, the Mg-Fe-Mn-Li amphiboles (Monoclinic)

IMA sta­tus

anerkannt, 2003 umbenannt von "Tirodit" in "Manganocummingtonit"

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Clas­sifica­tion

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Magnesium-iron-manganese amphiboles  ⇒ Cummingtonite (Cum) amphiboles

Optical Properties

Color

schwarzbraun/strohgelb/grünlichweiß

Streak color

weiß

Diaphane­ity (Trans­parency)

opak

Lus­tre

Glasglanz

max. Birefrin­gence

0.032

Birefringence chart\! Manganocummingtonite title=Birefringence chart Manganocummingtonite

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

1.634

RI value β

1.648

RI value γ / ε

1.666

Ri mean

1.649

2V angle

Biaxial (-) 74°

Optical Data Luminescence

Color LW-UV (365nm)

 

violettrosa

LW-UV Intensity

stark

Color SW-UV (254nm)

 

violettrot

SW-UV Intensity

stark

Most Common Acti­vator

Mn2+

After­glow (Per­sistant Lumi­nes­cence)

keine Daten

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell param­e­ters a (Å)

9.799

Cell param­e­ters b (Å)

17.994

Cell param­e­ters c (Å)

5.289

Cell param­e­ters a/b or c/a

0.545

Cell param­e­ters c/b

0.294

Cell param­e­ters α

90°

Cell param­e­ters β

103.88

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

905.343

X-Ray Pow­der Diffrac­tion

9.03(80),
8.30(90),
4.52(50),
3.43(60),
3.25(80),
3.07(100),
2.726(70),
2.603(50)

XRD chart Manganocummingtonite

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

Morphol­ogy

Kristalle rhomboedrisch bis tafelig; nadelig

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

6 - 6.5

VHN (Hard­ness Vick­ers)

850 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.07

3.233 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Indien/Madhya Pradesh/Balaghat, Distrikt/Tirodi

Preface

Occurrences

magmatisch aus der Tirodi Mine, Tirodi, Madhya Pradesh, Indien

Rare­ness

selten

Author (Name, Year)

Dunn & Roy, 1938

Rel­evance, Usage

nur für Sammler von Interesse

References

Canadian Mineralogist 35 (1997), 219

IMA group assignments





 
 
 
 
 
☐(Mg,Fe2+,Mn2+)7Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
☐Mn2(Mg,Fe)5Si8O22(OH)2
monoklin
C2/m

Refresh list

Actuality: 25. Jun 2022 - 10:45:08

Other languages

German

Manganocummingtonit

Spanish

Manganocummingtonita

English

Manganocummingtonite

French

Manganocummingtonite

Russian

Манганкуммингтонит

Russian

Манганокуммингтонит

Simplified Chinese

镁锰闪石

Alternative Name

English

Mangano-anthophyllite

German

Tirodit

Spanish

Tirodita

English

Tirodite

Simplified Chinese

锰直闪石

Simplified Chinese

锰镁闪石

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Manganocummingtonit
Google-Bilder-Suche - search for: Manganocummingtonit
Mineralienatlas.de (Forum) - search for: Manganocummingtonit

English pages

Mindat - search for: Manganocummingtonite
Webmineral - search for:Manganocummingtonite
Handbook-of-Mineralogy - search for: Manganocummingtonite
RRUFF - Raman, XRD and other mineral data - search for: Manganocummingtonite
RRUFF - References and PDF downloads - search for: Manganocummingtonite
American-Mineralogist-Crystal-Structure-Database - search for: Manganocummingtonite
Strahlen.org - search for: Manganocummingtonite

Russian pages

Webmineral.ru - search for: Манганокуммингтонит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Manganocummingtonit
Crystal-Treasure.com - search for: Manganocummingtonit
Bosse - search for: Manganocummingtonit
Edelsteine Neuburg - Gundolf Fischer - search for: Manganocummingtonit

Locations with GPS information