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Rhodizite (Rhodizit)

Pictures (18 Images total)

Rhodizit
Views (File:
1295984161
): 3785, Rating: 8.5
Rhodizit
Sahatany Pegmatite Field, Prov. Antananarivo, Reg. Vakinankaratra, Madagaskar, Breite 35 mm
Copyright: Embarak; Contribution: Embarak
Collection: Embarak
Location: Madagaskar/Vàkinankàratra, Region/Sahatany-Pegmatitfeld
Mineral: Rhodizite
Image: 1295984161
Rating: 8.5 (votes: 6)
License: Usage for Mineralienatlas project only
Rhodizit

Sahatany Pegmatite Field, Prov. Antananarivo, Reg. Vakinankaratra, Madagaskar, Breite 35 mm

Collection: Embarak
Copyright: Embarak
Contribution: Embarak 2011-01-25
Locality: Sahatany-Pegmatitfeld / Vàkinankàratra, Region / Madagaskar
Rhodizite
Views (File:
1503912972
): 1668
Rhodizite
Rhodizite crystal, that nested on matrix rock, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar; Size 32 х 31 х 18 mm
Copyright: pegmatite; Contribution: pegmatite
Location: Madagaskar/Vàkinankàratra, Region/Betafo, Distrikt/Andrembesoa/Tetezantsio-Andoabatokely-Pegmatit
Mineral: Rhodizite
Encyclopedia: Rhombendodekaeder
Image: 1503912972
Rating: 8.5 (votes: 2)
License: Usage for Mineralienatlas project only
Rhodizite

Rhodizite crystal, that nested on matrix rock, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Prov...

Copyright: pegmatite
Contribution: pegmatite 2017-08-28
Locality: Tetezantsio-Andoabatokely-Pegmatit / Andrembesoa / Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar
Rhodizit x
Views (File:
1103200304
): 4101, Rating: 8.25
Rhodizit x
ca. 1 cm Durchmesser; Fundort: Antsogombato, Antsirabe, Madagaskar
Copyright: berthold; Contribution: Mineralienatlas
Collection: berthold
Location: Madagaskar/Vàkinankàratra, Region/Betafo, Distrikt/Andrembesoa/Antsentsindrano/Grube Antsongombato
Mineral: Rhodizite
Image: 1103200304
Rating: 8.25 (votes: 4)
License: Usage for Mineralienatlas project only
Rhodizit x

ca. 1 cm Durchmesser; Fundort: Antsogombato, Antsirabe, Madagaskar

Collection: berthold
Copyright: berthold
Contribution: Mineralienatlas 2004-12-16
Locality: Grube Antsongombato / Antsentsindrano / Andrembesoa / Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar
Rhodizit
Views (File:
1373530188
): 1686
Rhodizit
Größe: 2,17 mm; Fundort: Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar
Copyright: Matteo Chinellato; Contribution: Hg
Collection: Domenico Preite
Location: Madagaskar/Vàkinankàratra, Region/Betafo, Distrikt/Andrembesoa/Tetezantsio-Andoabatokely-Pegmatit
Mineral: Rhodizite
Image: 1373530188
Rating: 8 (votes: 3)
License: Usage for Mineralienatlas project only
Rhodizit

Größe: 2,17 mm; Fundort: Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar

Collection: Domenico Preite
Copyright: Matteo Chinellato
Contribution: Hg 2013-07-11
Locality: Tetezantsio-Andoabatokely-Pegmatit / Andrembesoa / Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar
rhodizite
Views (File:
1289235525
): 2297
rhodizite
Good shaped rhodizite crystal, that nested in pegmatite matrix rock, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar; Size 77 x 56 x 23 mm
Copyright: pegmatite; Contribution: pegmatite
Collection: pegmatite
Location: Madagaskar/Vàkinankàratra, Region/Betafo, Distrikt/Andrembesoa/Tetezantsio-Andoabatokely-Pegmatit
Mineral: Rhodizite
Image: 1289235525
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
rhodizite

Good shaped rhodizite crystal, that nested in pegmatite matrix rock, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Reg...

Collection: pegmatite
Copyright: pegmatite
Contribution: pegmatite 2010-11-08
Locality: Tetezantsio-Andoabatokely-Pegmatit / Andrembesoa / Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar
Rhodizite
Views (File:
1450245691
): 927
Rhodizite
Good shaped rhodizite crystal, that nested in pegmatite matrix, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, Antananarivo Province, Madagascar; Size 48 x 38 x 25 mm
Copyright: pegmatite; Contribution: pegmatite
Collection: pegmatite
Location: Madagaskar/Vàkinankàratra, Region/Betafo, Distrikt/Andrembesoa/Tetezantsio-Andoabatokely-Pegmatit
Mineral: Rhodizite
Image: 1450245691
Rating: 8 (votes: 1)
License: Usage for Mineralienatlas project only
Rhodizite

Good shaped rhodizite crystal, that nested in pegmatite matrix, from Tetezantsio pegmatites, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa Commune, Betafo District, Vakinankaratra Region, ...

Collection: pegmatite
Copyright: pegmatite
Contribution: pegmatite 2015-12-16
Locality: Tetezantsio-Andoabatokely-Pegmatit / Andrembesoa / Betafo, Distrikt / Vàkinankàratra, Region / Madagaskar

You find additional specimen at the Geolitho Museum

Collectors Summary

Color farblos, graulich, gelb, gelblich weiß, weiß
Streak color weiß
Lustre Glasglanz,teilw. Fettglanz in Diamantglanz übergehend
Hardness (Mohs) 8.5
Solubility - Säuren, !Licht
Crystal System kubisch, P43m

Chemism

Chemical formula

(K,Cs)Al4Be4(B,Be)12O28

Chemical composition

Aluminium, Beryllium, Cäsium, Bor, Kalium, Sauerstoff

Unit weight: 778.8508644 u; Number of atoms in the formula: 49

Info

Empirical formula:

(K0.75Cs0.25)Al4Be4(B0.75Be0.25)12O28

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Beryllium

Be

8.10

7

14.29

9.0121823

63.0852761

Boron

B

12.49

9

18.37

10.8117000

97.3053000

Oxygen

O

57.52

28

57.14

15.9994300

447.9840400

Aluminium

Al

13.86

4

8.16

26.9815382

107.9261528

Potassium

K

3.76

0.75

1.53

39.0983100

29.3237325

Caesium

Cs

4.27

0.25

0.51

132.9054520

33.2263630

Analysis wt%

K2O : 1.79, Rb2O : 1.83, Cs2O : 7.54, BeO : 12.20, Al2O3 : 24.41, B2O3 : 46.82, SiO2 : 0.45, H2O : 4.10 (Ref: Tschermaks Mineralogische und Petrographische Mitteilungen 65)

Strunz 9th edition incl. updates

6.GC.05

6: Borate
G: Heptaborate und andere Megaborate
C:
05:Rhodizit-Gruppe

Lapis Classification

V/L.02-020

V: NITRATE, CARBONATE UND BORATE
L: Gerüstborate mit [BO2] 1- bis [B12O24] 12-

Classification by Hölzel

6.GA.400

6: Borates
G: Heptaborates and further megaborates
A:
4: Tektododekaborates - 12(12T)

Dana 8th edition

25.08.02.01

25: Anhydrous Borates Containing Hydroxyl or Halogen
08: Anhydrous Borates Containing Hydroxyl or Halogen

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos, graulich, gelb, gelblich weiß, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

Lustre

Glasglanz,teilw. Fettglanz in Diamantglanz übergehend

RI value α / ω / n

1.694

Ri mean

1.694

2V angle

Isotropisch

Optical Data Luminescence

Luminescence

Piezoelectric und pyroelectric

Color LW-UV (365nm)

 

gelb

Color SW-UV (254nm)

 

gelb

SW-UV Intensity

stark

LW-UV Other Colors

 

gelblich weiß

SW-UV Other Colors

 

orangegelb

Most Common Activator

Mn2+

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

kubisch

Class (H-M)

43m

Space Group number

215

Space Group

P43m

Cell parameters a (Å)

7.317

Cell parameters b (Å)

-

Cell parameters c (Å)

-

Cell parameters a/b or c/a

1

Cell parameters c/b

-

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

1

Volume (ų)

391.741

Crystal structure

dreidimensional verknüpfte Tetraeder

X-Ray Powder Diffraction

7.31(20),
3.27(50),
2.983(100),
2.440(50),
2.205(20),
2.111(30),
1.956(20),
1.829(20)

XRD chart Rhodizite

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)

8.5

VHN (Hardness Vickers)

2800 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.44

3.301 ( ρ calc. Mineralienatlas )

Instability

- Säuren, !Licht

Chemical Properties and Tests

vor dem Lötrohr nur im Randbereich schmelzbar und dort zu weißen undurchsichtigem Glas.Die Flamme wird zuerst grün anschließen rot gefärbt

(Co-)Type locality

(Co-)Type locality

Russland/Ural, Föderationskreis/Swerdlowsk (Sverdlovskaya, Sverdlovsk), Oblast/Berjosowski (Beryozovsky), Stadtkreis/Sarapulka, Ort/Ministerskaya Yama Grube

Russland/Ural, Föderationskreis/Swerdlowsk (Sverdlovskaya, Sverdlovsk), Oblast/Rezhevsky, Rajon/Oktyabr'skoe, Ort/Mor's Grube

Type material

Mineraliensammlung des Museums für Naturkunde Berlin

Collection number of type material

Proben 1997-4993, 1999-0082 und 1999-2275

Paragenesis of type material

Turmalin (Probe 1999-0082)

Preface

Generation conditions

in magmatischen Restschmelzen

Rareness

sehr seltenes Mineral der Granitpegmatite

Name from

Der Berliner Mineraloge G.Rose gab den Namen wegen der auffälligen roten Flammenfärbung bei der Lötrohranalyse

Author (Name, Year)

Rose, 1834

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 589

Other languages

German

Rhodizit

English

Rhodizite

French

Rhodizite

Spanish

Rodicita

Russian

Родицит

Japanese

ローディズ石

Simplified Chinese

硼锂铍石

Alternative Name

German

Rhodicit

Spanish

Rhodicita

Rhodicite

Spanish

Rhodizita

German

Rhodozit

CNMNC symbol

Symbol

Rdz

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Do0uN9ktXU-YJ1X8UXepmw
GUID (Global unique identifier) 372E8D0E-2DD9-4F5D-9827-55FC5177A99B
Database ID 3263