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Reinhardbraunsite

Pictures (4 Images total)

Reinhardbraunsit
Views (Image: 1081184612): 1700
Reinhardbraunsit

Cabochon-Ei, perlmuttglänzend mit hellrosa Reinhardbraunsit und blaugrünem Ellestadit; Größe: 2,4 x 1,3 cm; Fundort: Ettringer Bellerberg bei Mayen, Eifel;
Collection: McSchuerf
Copyright: McSchuerf
Contribution: Mineralienatlas 2004-04-05
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Reinhardbraunsit (rosa)
Views (Image: 1249809190): 1416
Reinhardbraunsit (rosa)

Bildbreite: 6 mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Deutschland
Copyright: Leonardus
Contribution: slugslayer 2009-08-09
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Reinhardbraunsit
Views (Image: 1416943975): 767
Reinhardbraunsit (SNr: A000035)

Derb rosa, BB = 5,5mm; Fundort: Stbr. Caspar, Ettringer Bellerberg, Ettringen, Eifel, Rheinland-Pfalz, Deutschland. Reinhardbraunsit ist Bestandteil bestimmter Partien von kalziumreichen Xenolithen.
Collection: Lithothek der Münchener Micromounter
Copyright: Hannes Osterhammer
Contribution: Münchener Micromounter 2014-11-25
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland
Reinhardbraunsite
Views (Image: 1619804009): 165
Reinhardbraunsite (SNr: AI.45)

Reinhardbraunsite Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Mayen/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar) Bildbreite 4 mm
Collection: Bruno DARIMONT
Copyright: Bruno DARIMONT
Contribution: Bruno80090 2021-04-30
Locality: Ettringer Bellerberg (Stbr. Caspar) / Bellerberg / Ettringen / Mayen / Mayen-Koblenz-Kreis / Rheinland-Pfalz / Deutschland

Collectors Summary

Color hellrosa
Streak color weiß
Hardness (Mohs) 5.5
Solubility +++ HNO3, HCl
Crystal System monoklin, P21/a

Chemism

Chem­ical formula

Ca5(SiO4)2(OH,F)2

Chem­ical com­po­si­tion

Calcium, Silicium, Fluor, Sauerstoff, Wasserstoff

Unit weight: 419.568767125 u; Number of atoms in the formula: 18.5

Info

Empirical formula:

Ca5(SiO4)2((OH)0.75F0.25)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.36

1.5

8.11

1.0079470

1.5119205
Oxygen

O

36.23

9.5

51.35

15.9994300

151.9945850
Fluorine

F

2.26

0.5

2.70

18.9984033

9.4992016
Silicon

Si

13.39

2

10.81

28.0855300

56.1710600
Calcium

Ca

47.76

5

27.03

40.0784000

200.3920000

Anal­y­sis wt%

SiO2 : 26.97, CaO : 65.68, P2O5 : 0.69, F : 4.24, H2O : 2.66 (Ref: Neues Jahrbuch für Mineralogie, (Monatshefte) 83)

Strunz 9th edi­tion incl. updates

9.AF.45

9: Silikate (Germanate)
A: Inselsilikate (Nesosilikate)
F: Insel(Neso)silikate mit zusätzlichem Anionen; Kationen in [4], [5] und/oder nur [6] Koordination
45:Chondrodit-Gruppe

Lapis Clas­sifica­tion

VIII/B.04-070

VIII: SILIKATE
B: Inselsilikate mit tetraederfremden Anionen
4: Kationen in tetraedrischer oder oktaedrischer Koordination [4/6]; Humit-Gruppe

Clas­sifica­tion by Hölzel

9.AI.330

9: SILICATES
A: Nesosilicates
I: Nesosilicates with OH
3: Chondrodite-Group

Dana 8th edi­tion

52.03.02b.03

52: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O
03: Nesosilicates Nesosilicate Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
02b: Humite group (Chondrodite series)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

hellrosa

Streak color

weiß

max. Birefrin­gence

0.014
Birefringence chart\! Reinhardbraunsite title=Birefringence chart Reinhardbraunsite

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

1.606

RI value β

1.617

RI value γ / ε

1.620

Ri mean

1.614

2V angle

Biaxial (-) 47°~

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell param­e­ters a (Å)

11.458

Cell param­e­ters b (Å)

5.052

Cell param­e­ters c (Å)

8.840

Cell param­e­ters a/b or c/a

2.268

Cell param­e­ters c/b

1.750

Cell param­e­ters α

90°

Cell param­e­ters β

108.92

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

484.064

X-Ray Pow­der Diffrac­tion

3.806(40),
3.322(50),
3.035(80),
2.941(50),
2.903(70),
1.902(100),
1.894(50),
1.658(40)
XRD chart Reinhardbraunsite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

5.5

VHN (Hard­ness Vick­ers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.84

2.878 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ HNO3, HCl

(Co-)Type locality

(Co-)Type locality

Deutschland/Rheinland-Pfalz/Mayen-Koblenz-Kreis/Mayen/Ettringen/Bellerberg/Ettringer Bellerberg (Stbr. Caspar)

Type mate­r­ial

Mineralogisches Museum der Universität Bonn

Par­a­ge­n­e­sis of type mate­r­ial

Ellestadit, Cuspidin, Gehlenit, Periklas u.a.

Preface

Author (Name, Year)

Hamm & Hentschel, 1983

References

The crystal structure of reinhardbraunsite, Ca5(SiO4)2(OH,F)2, a new mineral of the calcio-chondrodite type. Kirfel, A., Hamm, H.-M. und Will, G. Tschermaks Min. Petr. Mitt., 31, 1983, 137-150

Reinhardbraunsite, Ca5(SiO4)2(OH,F)2, a new mineral - the natural equivalent of synthetic ""calcio-chondrodite"". Hamm, H.-M. und Hentschel, G. N. Jb. Miner. Mh, 3, 1983, 119-129

Other languages

German

Reinhardbraunsit

Spanish

Reinhardbraunsita

English

Reinhardbraunsite

French

Reinhardbraunsite

Russian

Райнхардбраунсит

Alternative Name

Calcio-chondrodite

Calcium Chondrodite

CNMNC (IMA)-Number

IMA 1980-032

CNMNC symbol

Symbol

Rbn

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

German pages

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

English pages

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

Russian pages

 Webmineral.ru - search for: Райнхардбраунсит

Mineral Dealer

German pages

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Locations with GPS information