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Metaschoderite (Metaschoderit)

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Metaschoderit
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Metaschoderit
Metaschoderit BB 6,1 mm USA/Nevada/Eureka Co./Gibellini District/VanNavSan Claim
Copyright: Hannes Osterhammer; Contribution: anatase2
Collection: anatase2, Collection number: 444
Location: USA/Nevada/Eureka Co./Gibellini District/VanNavSan Claim
Mineral: Metaschoderite
Image: 1643319740
License: Usage for Mineralienatlas project only
Metaschoderit (SNr: 444)

Metaschoderit BB 6,1 mm USA/Nevada/Eureka Co./Gibellini District/VanNavSan Claim
Collection: anatase2
Copyright: Hannes Osterhammer
Contribution: anatase2 2022-01-27
Locality: VanNavSan Claim / Gibellini District / Eureka Co. / Nevada / USA

You find additional Metaschoderit specimen at the Geolitho Museum

Collectors Summary

Color gelblichorange
Streak color gelb
Hardness (Mohs) 2
Solubility +++ Säuren
Crystal System monoklin, P2/m

Chemism

Chemical formula

Al(PO4)·3H2O

Chemical composition

Aluminium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 175.9989914 u; Number of atoms in the formula: 15

Info

Empirical formula:

Al(PO4)·3H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

3.44

6

40.00

1.0079470

6.0476820
Oxygen

O

63.63

7

46.67

15.9994300

111.9960100
Aluminium

Al

15.33

1

6.67

26.9815382

26.9815382
Phosphorus

P

17.60

1

6.67

30.9737612

30.9737612

Analysis wt%

Al2O3 : 27.41, P2O5 : 19.08, V2O5 : 24.45, H2O : 29.06 (Ref: berechnet)

Strunz 9th edition incl. updates

8.CE.35

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
E: Mit ausschließlich mittelgroßen Kationen, RO4:H2O = 1:2.5
35:Bobierrit-Gruppe

Lapis Classification

VII/C.12-040

VII: PHOSPHATE, ARSENATE UND VANADATE ("Phosphate" des Registers immer einschließlich isotyper Arsenate und Vanadate!)
C: Wasserhaltige Phosphate, ohne fremde Anionen
12: Kleine und mittelgroße Kationen: Be und Al-Mn-Fe-Cu-Zn-Mg

Classification by Hölzel

8.CC.340

8: PHOSPHATES ARSENATES VANADATES
C: Phosphates (-Anions +Water)
C: Valency: 3,4 C medium
3: XO4/H2O=1/3 Konickite-Group

Dana 8th edition

43.03.01.02

43: Compound Phosphates, etc.
03: Compound Phosphates, etc. (Hydrated Normal Compound Anions)
01: Embreyite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

gelblichorange

Streak color

gelb

Diaphaneity (Transparency)

durchscheinend

max. Birefringence

0.028
Birefringence chart\! Metaschoderite title=Birefringence chart Metaschoderite

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

1.598

RI value β

1.604

RI value γ / ε

1.626

Ri mean

1.609

2V angle

Biaxial (+) 56° (gemessen) 55.2° (berechnet)

Orientation

Z = c, Y ^ b = 20°

Optical Data Luminescence

Color LW-UV (365nm)

  

grünlich gelb

Color SW-UV (254nm)

  

grünlich gelb

Afterglow (Persistant Luminescence)

keine Daten

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

10

Space Group

P2/m

Cell parameters a (Å)

11.4

Cell parameters b (Å)

14.9

Cell parameters c (Å)

9.2

Cell parameters a/b or c/a

0.765

Cell parameters c/b

0.617

Cell parameters α

90°

Cell parameters β

101.0

Cell parameters γ

90°

Z

8

Volumne (ų)

1534.001

X-Ray Powder Diffraction

14.9(60),
11.1(40),
9.6(10),
8.6(10),
7.5(100),
5.68(10),
4.92(10),
3.02(20)
XRD chart Metaschoderite

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

Physical Properties

Hardness (Mohs)

2

VHN (Hardness Vickers)

32 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.61 (berechnet) 1.88 (gemessen)

1.524 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

USA/Nevada/Eureka Co./Gibellini District/VanNavSan Claim

Preface

Author (Name, Year)

Hausen, 1962

References

Handbook of Mineralogy (Anthony et al.), 4 (2000), 362

Other languages

German

Metaschoderit

Spanish

Metaschoderita

French

Metaschoderite

English

Metaschoderite

CNMNC symbol

Symbol

Msdr

Locations with GPS information