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Richterite

Pictures (25 Images total)

Richterit xx
Views (File:
1102441584
): 4591
Richterit xx
Fundort: Wilberforce, Monmouth Township, Haliburton Co., Ontario, Kanada; Kristallgröße: ca. 3 cm
Copyright: berthold; Contribution: Mineralienatlas
Location: Kanada/Ontario/Haliburton Co./Highlands East Township/Wilberforce
Mineral: Richterite
Image: 1102441584
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Richterit xx

Fundort: Wilberforce, Monmouth Township, Haliburton Co., Ontario, Kanada; Kristallgröße: ca. 3 cm

Copyright: berthold
Contribution: Mineralienatlas 2004-12-07
Locality: Wilberforce / Highlands East Township / Haliburton Co. / Ontario / Kanada
Richterit
Views (File:
1499346144
): 1898
Richterit
von der Praborna Mine im Aostatal, Italien; faserig stängelige trüb-weiße bis gelbliche Aggregate; BB = 4,5 mm
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: B006391, Donator: anatase2
Location: Italien/Aostatal (Valle d'Aosta), Region/Saint-Marcel/Mina Praborna
Mineral: Richterite
Image: 1499346144
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Richterit (SNr: B006391)

von der Praborna Mine im Aostatal, Italien; faserig stängelige trüb-weiße bis gelbliche Aggregate; BB = 4,5 mm

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2017-07-06
Locality: Mina Praborna / Saint-Marcel / Aostatal (Valle d'Aosta), Region / Italien
Richterit
Views (File:
1274612878
): 3408
Richterit
Größe: 21x10 mm; Fundort: Badakhshan, Afghanistan
Copyright: John Sobolewski; Contribution: Philip Blümner
Location: Afghanistan/Badachshan (Badakhshan; Badahsan), Provinz
Mineral: Richterite
Image: 1274612878
Rating: 6.5 (votes: 2)
License: Usage for Mineralienatlas project only
Richterit

Größe: 21x10 mm; Fundort: Badakhshan, Afghanistan

Copyright: John Sobolewski
Contribution: Philip Blümner 2010-05-23
Locality: Badachshan (Badakhshan; Badahsan), Provinz / Afghanistan
Richterit
Views (File:
1292185074
): 3353
Richterit
Schwarzer prismatischer Kristall , BB = <1 mm. Fundort: Hendersons Quarry, Ngongotaha, Region Bay Of Plenty, North Island, Neuseeland
Copyright: Hannes Osterhammer; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A008355, Donator: Peter Köhlen
Location: Neuseeland/North Island/Bay of Plenty, Region/Rotorua/Ngongotaha/Hendersons Quarry
Mineral: Richterite
Image: 1292185074
Rating: 7 (votes: 1)
License: Usage for Mineralienatlas project only
Richterit (SNr: A008355)

Schwarzer prismatischer Kristall , BB = <1 mm. Fundort: Hendersons Quarry, Ngongotaha, Region Bay Of Plenty, North Island, Neuseeland

Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2010-12-12
Locality: Hendersons Quarry / Ngongotaha / Rotorua / Bay of Plenty, Region / North Island / Neuseeland
Richterit
Views (File:
1178273838
): 3979
Richterit
Bildbreite: 10 mm; Fundort Laacher See-Vulkangebiet, Eifel, Deutschland
Copyright: Stephan Wolfsried; Contribution: Hg
Collection: christof schäfer
Location: Deutschland/Rheinland-Pfalz/Ahrweiler, Landkreis/Brohltal, Verbandsgemeinde/Laacher See
Mineral: Richterite
Image: 1178273838
Rating: 6 (votes: 1)
License: Usage for Mineralienatlas project only
Richterit

Bildbreite: 10 mm; Fundort Laacher See-Vulkangebiet, Eifel, Deutschland

Collection: christof schäfer
Copyright: Stephan Wolfsried
Contribution: Hg 2007-05-04
Locality: Laacher See / Brohltal, Verbandsgemeinde / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland

You find additional specimen at the Geolitho Museum

Collectors Summary

Color gelb, braun, grauviolett, blau
Streak color weiß
Lustre Glasglanz
Hardness (Mohs) 5 - 6
Solubility - Säuren
Crystal System monoklin, C2/m

Chemism

Chemical formula

Na2Ca(Mg,Fe2+)5Si8O22(OH)2

Chemical composition

Calcium, Eisen, Magnesium, Natrium, Silicium, Sauerstoff, Wasserstoff

Unit weight: 857.6948694 u; Number of atoms in the formula: 42

Info

Empirical formula:

Na2Ca(Mg0.75Fe0.25)5Si8O22(OH)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

0.24

2

4.76

1.0079470

2.0158940

Oxygen

O

44.77

24

57.14

15.9994300

383.9863200

Sodium

Na

5.36

2

4.76

22.9897702

45.9795404

Magnesium

Mg

10.63

3.75

8.93

24.3050600

91.1439750

Silicon

Si

26.20

8

19.05

28.0855300

224.6842400

Calcium

Ca

4.67

1

2.38

40.0784000

40.0784000

Iron

Fe

8.14

1.25

2.98

55.8452000

69.8065000

Analysis wt%

SiO2 : 58.88, MgO : 24.24, CaO : 7.00, Na2O : 7.20, F : 4.74 (Ref: American Mineralogist 55)

Strunz 9th edition incl. updates

9.DE.20

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
E: Ketten- und Bandsilikate mit 2-periodischen Doppelketten, Si4O11; Amphibol-Familie, Klinoamphibole
20:

Lapis Classification

VIII/F.09-010

VIII: SILIKATE
F: Ketten- und Bandsilikate
9: Zweierbänder [Si4O11] 6-; Amphibol-Gruppe; Na-Ca-Amphibole

Classification by Hölzel

9.DI.100

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
I: Amphiboles; Sodiccalcic Amphiboles
1: Richterite-Group

Dana 8th edition

66.01.03b.09

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
01: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 amphibole configuration
03b: Group 3, the sodic-calcic amphiboles

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Amphibole supergroup  ⇒ (OH,F,Cl)-dominant amphiboles  ⇒ Sodium-calcium amphiboles  ⇒ Richterite (Ri) amphibole

Optical Properties

Color

gelb, braun, grauviolett, blau

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz

max. Birefringence

0.019

Birefringence chart\! Richterite title=Birefringence chart Richterite

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

1.603!!

RI value β

1.614!!

RI value γ / ε

1.622!!

Ri mean

1.613

2V angle

Biaxial (-) 72°!

Optical Data Luminescence

Color LW-UV (365nm)

 

grünlich

Most Common Activator

Fe3+

Other Activators

Mn2+, O*

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)

9.907

Cell parameters b (Å)

17.979

Cell parameters c (Å)

5.269

Cell parameters a/b or c/a

0.551

Cell parameters c/b

0.293

Cell parameters α

90°

Cell parameters β

104.25

Cell parameters γ

90°

Z

2

Volume (ų)

909.627

X-Ray Powder Diffraction

3.389(60),
3.281(40),
3.150(90),
2.959(60),
2.706(100),
2.585(40),
2.526(60),
2.166(40)

XRD chart Richterite

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 - 6

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.09

3.131 ( ρ calc. Mineralienatlas )

Radioactivity

keine

Instability

- Säuren

Preface

Author (Name, Year)

Breithaupt, 1865

Safety Instructions

Industrial chemicals are often present in powder form and therefore often contain much higher dangers than natural, crystalline substances. These hazard statements refer to the classification of industrially used chemical compounds that may also occur in this natural mineral. The hazard classification makes no claim to completeness.




Safety classes: H350: Kann Krebs erzeugen., H372: Schädigt die Organe bei längerer oder wiederholter Exposition.

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 685

IMA group assignments





 
 
 
 
 
Na2Ca(Fe2+,Mg)5Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
Na(NaCa)Mg5Si8O22F2
monoklin
C2/m

 
 
 
 
 
(K,Na)NaCaMg5Si8O22F2
monoklin
C2/m

 
 
 
 
 
K(NaCa)Mg5Si8O22(OH)2
monoklin
C2/m

 
 
 
 
 
Na2Ca(Mg,Fe2+)5Si8O22(OH)2
monoklin
C2/m

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Actuality: 11. Jul 2024 - 14:15:05

Other languages

German

Richterit

Spanish

Richterita

English

Richterite

French

Richterite

Russian

Рихтерит

Simplified Chinese

钠透闪石

Alternative Name

German

Astochit

Spanish

Astochita

English

Astochite

German

Chernyshevit

Spanish

Chernyshevita

Chernyshevite

German

Isabellit

Spanish

Isabellita

English

Isabellite

German

Marmairolit

Spanish

Marmairolita

English

Marmairolite

German

Natrongrammatit

English

Natrongrammatite

English

Natronrichterite

English

Sodarichterite

English

Sodatremolite

English

Szechenyiite

English

Waldheimite

Simplified Chinese

碱镁闪石

Simplified Chinese

锰闪石

CNMNC symbol

Symbol

Rct

Rock part of

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Hint

- Essential mineral - Important for the classification of the rock.
- Accessory or non-essential mineral - this minerals are common, sometimes major part of, but are not always present.

Actuality: 11. Jul 2024 - 14:15:05

Locations with GPS information

IDs

GUSID (Global unique identifier short form) 48kMqAz_C0uB_9c-zGiFHg
GUID (Global unique identifier) A80CC9E3-FF0C-4B0B-81FF-D73ECC68851E
Database ID 3273