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Buddingtonite

Pictures (1 Images total)

Buddingtonit
Views (File:
1197011961
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Buddingtonit
Sharon Heights, Menlo Park, San Mateo Co., Kalifornien, USA; Größe: 2,5 x 4 cm
Copyright: Dan Weinrich; Contribution: Collector
Location: USA/Kalifornien (California)/San Mateo Co./Menlo Park/Sharon Heights
Mineral: Buddingtonite
Image: 1197011961
Rating: 2 (votes: 1)
License: Usage for Mineralienatlas project only
Buddingtonit

Sharon Heights, Menlo Park, San Mateo Co., Kalifornien, USA; Größe: 2,5 x 4 cm

Copyright: Dan Weinrich
Contribution: Collector 2007-12-07
Locality: Sharon Heights / Menlo Park / San Mateo Co. / Kalifornien (California) / USA

Collectors Summary

Color farblos, weiß
Streak color weiß
Hardness (Mohs) 5.5
Solubility +++ heiße NaOH
Crystal System monoklin, P21, P21/m

Additional information / Summary

Siehe auch unser umfangreiches Feldspat-Portrait

Chemism

Chemical formula

(NH4)AlSi3O8·0.5 H2O

Chemical composition

Aluminium, Silicium, Sauerstoff, Stickstoff, Wasserstoff

Unit weight: 266.2797382 u; Number of atoms in the formula: 18.5

Info

Empirical formula:

(NH4)AlSi3O8·0.5H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.89

5

27.03

1.0079470

5.0397350

Nitrogen

N

5.26

1

5.41

14.0067200

14.0067200

Oxygen

O

51.07

8.5

45.95

15.9994300

135.9951550

Aluminium

Al

10.13

1

5.41

26.9815382

26.9815382

Silicon

Si

31.64

3

16.22

28.0855300

84.2565900

Strunz 9th edition incl. updates

9.FA.30

9: Silikate (Germanate)
F: Gerüstsilikate (Tektosilikate) ohne zeolithisches H2O
A: Gerüstsilikate (Tektosilicates) ohne weitere [Anionen]
30:Feldspat: Alkali

Lapis Classification

VIII/J.06-010

VIII: SILIKATE
J: Gerüstsilikate (mit Zeolithen)
6: Ohne tetraederfremde Anionen; Feldspat-Gruppe

Classification by Hölzel

9.FC.140

9: SILICATES
F: Tektosilicates
C: Feldspar-Group

Dana 8th edition

76.01.02.01

76: Tektosilicates Tectosilicate Al-Si Framework
01: Tektosilicates Tectosilicate Al-Si Framework with Al-Si frameworks

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Feldspar group  ⇒ Alkali feldspar

Optical Properties

Color

farblos, weiß

Streak color

weiß

Diaphaneity (Transparency)

transparent bis durchscheinend

max. Birefringence

0.004

Birefringence chart\! Buddingtonite title=Birefringence chart Buddingtonite

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

1.530

RI value β

1.531

RI value γ / ε

1.534

Ri mean

1.532

2V angle

Biaxial (+) 60°

Crystallography

Crystal System

monoklin

Class (H-M)

2, 2/m

Space Group number

4, 11

Space Group

P21, P21/m

Cell parameters a (Å)

8.571

Cell parameters b (Å)

13.032

Cell parameters c (Å)

7.187

Cell parameters a/b or c/a

0.658

Cell parameters c/b

0.551

Cell parameters α

90°

Cell parameters β

112.73

Cell parameters γ

90°

Z

4

Volumne (ų)

740.422

X-Ray Powder Diffraction

6.52(100),
5.91(30),
4.33(60),
3.98(30),
3.81(100),
3.381(70),
3.314(30),
3.258(60)

XRD chart Buddingtonite

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)

5.5

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.32

2.389 ( ρ calc. Mineralienatlas )

Instability

+++ heiße NaOH

Preface

Rareness

Selten

Author (Name, Year)

Erd & White & Fahey & Lee, 1964

Additional Information

Feldspat-Gruppe (Buddingtonit-Orthoklas-Slawsonit-Serie)

References

American Mineralogist 49 (1964), 831

IMA group assignments

Other languages

German

Buddingtonit

Spanish

Buddingtonita

English

Buddingtonite

French

Buddingtonite

Russian

Баддингтонит

CNMNC (IMA)-Number

IMA 1963-001

CNMNC symbol

Symbol

Bud

Locations with GPS information