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Rynersonite (Rynersonit)

Pictures (1 Images total)

Rynersonit
Views (File:
1392418998
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Rynersonit
Quixaba Pegmatit, Quixaba, Frei Martinho;
Borborema, Paraíba, Brasilien;
Stufe: 4 cm
Copyright: Public Domain; Contribution: Collector
Location: Brasilien/Nordosten (Região Nordeste)/Paraíba/Frei Martinho/Quixaba/Quixaba-Pegmatit
Mineral: Rynersonite
Image: 1392418998
License: Usage for Mineralienatlas project only
Rynersonit

Quixaba Pegmatit, Quixaba, Frei Martinho;
Borborema, Paraíba, Brasilien;
Stufe: 4 cm

Copyright: Public Domain
Contribution: Collector 2014-02-14
Locality: Quixaba-Pegmatit / Quixaba / Frei Martinho / Paraíba / Nordosten (Região Nordeste) / Brasilien

Collectors Summary

Color beige weiß, rosa
Streak color weiß
Hardness (Mohs) 4.5
Solubility - Säuren
Crystal System orthorhombisch, Pbnm

Chemism

Chemical formula

Ca(Ta,Nb)2O6

Chemical composition

Calcium, Niob, Tantal, Sauerstoff

Unit weight: 453.950036 u; Number of atoms in the formula: 9

Info

Empirical formula:

Ca(Ta0.75Nb0.25)2O6

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Oxygen

O

21.15

6

66.67

15.9994300

95.9965800

Calcium

Ca

8.83

1

11.11

40.0784000

40.0784000

Niobium

Nb

10.23

0.5

5.56

92.9063820

46.4531910

Tantalum

Ta

59.79

1.5

16.67

180.9479100

271.4218650

Analysis wt%

Ta2O5 : 83.30, Nb2O5 : 3.63, CaO : 9.41, FeO : 0.94, SiO2 : 0.70 (Ref: Schweizerische Mineralogische und Petrographische

Mitteilungen 79)

Strunz 9th edition incl. updates

4.DF.05

4: Oxide, Hydroxide (Oxide, Hydroxide, V[5,6]-Vanadate, Arsenite, Antimonite, Bismutite, Sulfite, Selenite, Tellurite, Iodate)
D: Metall: Sauerstoff = 1:2 und vergleichbare
F: Mit großen (± mittelgroßen) Kationen; dimers und trimers kantenverknüpfte Oktaeder
05:Aeschynit-Gruppe

Lapis Classification

IV/D.21-070

IV: OXIDE
D: Oxide mit Verhältnis Metall : Sauerstoff = 1:2 (MO2 und verwandte Verbindungen)
21: Aeschynit-Gruppe

Classification by Hölzel

4.DJ.370

4: OXIDES
D: Dioxides
J: Titanates, Niobates and Tantalates, C large, V medium ò 2
3: Aeschynite-Group

Dana 8th edition

08.03.07.02

08: Multiple Oxides with Nb, Ta, and Ti
03: Multiple Oxides with Nb, Ta, and Ti where A (B2O6)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Aeschynite group

Optical Properties

Color

beige weiß, rosa

Streak color

weiß

Diaphaneity (Transparency)

opak

max. Birefringence

0.14

Birefringence chart\! Rynersonite title=Birefringence chart Rynersonite

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

2.05>

RI value β

2.05>

RI value γ / ε

2.05>

2V angle

Biaxial (+) mod

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pbnm

Cell parameters a (Å)

7.505

Cell parameters b (Å)

11.063

Cell parameters c (Å)

5.370

Cell parameters a/b or c/a

0.678

Cell parameters c/b

0.485

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

445.859

X-Ray Powder Diffraction

4.836(100),
3.752(80),
3.041(100),
2.964(100),
2.687(40),
2.362(50),
1.714(30),
1.596(30)

XRD chart Rynersonite

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)

4.5

VHN (Hardness Vickers)

280 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

6.402

6.762 ( ρ calc. Mineralienatlas )

Instability

- Säuren

Preface

Name from

der Bergarbeiterfamilie F.J. Rynerson

Author (Name, Year)

Foord & Mrose, 1978

References

American Mineralogist 63, (1978), 709

IMA group assignments


 
 
(Ce,Ca,Fe,Th)(Ti,Nb)2(O,OH)6
orthorhombisch
Pbnm

 
 
(Nd,Ln,Ca)(Ti,Nb)2(O,OH)6
 
 

 
 
(Y,Ln,Ca,Th)(Ti,Nb)2(O,OH)6
orthorhombisch
Pbnm

 
 
(Ce,Ca)(Nb,Ti)2(O,OH)6
orthorhombisch
Pbnm

 
 
(Nd,Ce)(Nb,Ti)2(O,OH)6
orthorhombisch
 

 
 
[(Y,Ln),Ca,Th,Fe](Nb,Ti,Ta)2(O,OH)6
orthorhombisch
Pbnm

 
 
Ca(Ta,Nb)2O6
orthorhombisch
Pbnm

 
 
(Ca,Y,Ce)(Ta,Ti,Nb)2O6
orthorhombisch
Pbnm

 
 
(Ca,Ce)(Nb,Ta,Ti)2O6
orthorhombisch
Pbnm

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Actuality: 06. Feb 2025 - 19:13:37

Other languages

German

Rynersonit

Spanish

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French

Rynersonite

English

Rynersonite

Russian

Ринерсонит

CNMNC (IMA)-Number

IMA 1974-058

CNMNC symbol

Symbol

Rys

Locations with GPS information

IDs

GUSID (Global unique identifier short form) YYyCLTecaESsl5SFFa4HQw
GUID (Global unique identifier) 2D828C61-9C37-4468-AC97-948515AE0743
Database ID 3347