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Richterite (Richterit)

Pictures (22 Images total)

Richterit xx
Views (Image: 1102441584): 4383
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 (Image: 1499346144): 1734
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 (Image: 1292185074): 3252
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 (Image: 1178273838): 3863
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, Verbandsgem. / Ahrweiler, Landkreis / Rheinland-Pfalz / Deutschland
Richterit
Views (Image: 1274612878): 3284
Richterit

Größe: 21x10 mm; Fundort: Badakhshan, Afghanistan

Copyright: John Sobolewski
Contribution: slugslayer 2010-05-23
Locality: Badachshan (Badakhshan; Badahsan), Provinz / Afghanistan
Richterit
Views (Image: 1111218726): 1217
Richterit

Kristalle bis mehrere cm; Fundort: Lebrija, Utrera, Prov. Sevilla, Spanien

Collection: Collector
Copyright: Carlos Pareja
Contribution: Mineralienatlas 2005-03-19
Locality: Lebrija / Sevilla, Provinz / Andalusien (Andalucía) / Spanien

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

Volumne (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: 25. Jun 2022 - 05:50:24

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: 25. Jun 2022 - 05:50:25

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

German pages

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

English pages

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

Russian pages

Webmineral.ru - search for: Рихтерит

Mineral Dealer

German pages

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

Locations with GPS information