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Garyansellite

Pictures (1 Images total)

Garyansellit
Views (File:
1583167450
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Garyansellit
Kristallgruppe von braunen Garyansellit, Rapid Creek, Yukon, Kanada; BB ~ 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Kanada/Yukon-Territorium/Dawson Mining District/Richardson Mountains/Rapid Creek
Mineral: Garyansellite
Image: 1583167450
License: Usage for Mineralienatlas project only
Garyansellit

Kristallgruppe von braunen Garyansellit, Rapid Creek, Yukon, Kanada; BB 2 mm, analysiert
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-03-02
Locality: Rapid Creek / Richardson Mountains / Dawson Mining District / Yukon-Territorium / Kanada

Collectors Summary

Color braun
Streak color braun
Hardness (Mohs) 4
Crystal System orthorhombisch, Pbna

Chemism

Chemical formula

Mg2Fe3+(PO4)2(OH)·2 H2O

Chemical composition

Eisen, Magnesium, Phosphor, Sauerstoff, Wasserstoff

Unit weight: 347.4363074 u; Number of atoms in the formula: 21

Info

Empirical formula:

Mg2Fe(PO4)2(OH)·2H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

1.45

5

23.81

1.0079470

5.0397350
Oxygen

O

50.65

11

52.38

15.9994300

175.9937300
Magnesium

Mg

13.99

2

9.52

24.3050600

48.6101200
Phosphorus

P

17.83

2

9.52

30.9737612

61.9475224
Iron

Fe

16.07

1

4.76

55.8452000

55.8452000

Analysis wt%

Fe2O3 : 30.50, MgO : 16.00, MnO : 2.70, P2O5 : 38.80, H2O : 11.00 (Ref: American Mineralogist 84)

Strunz 9th edition incl. updates

8.CC.05

8: Phosphate, Arsenate, Vanadate
C: Phosphate ohne weitere Anionen, mit H2O
C: Mit ausschließlich mittelgroßen Kationen, RO4:H2O = 1:1.5
05:Phosphoferrit-Gruppe

Lapis Classification

VII/C.08-030

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

Classification by Hölzel

8.DD.500

8: PHOSPHATES ARSENATES VANADATES
D: Phosphates (+Anions +Water)
D: Valency: 2,3: P/OH > 1

Dana 8th edition

40.03.02.05

40: Hydrated Phosphates, etc
03: Hydrated Phosphates, etc where (A++)3 (XO4)2 · x(H2O)
02: Phosphoferrite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

 Reddingite group

Optical Properties

Color

braun

Streak color

braun

max. Birefringence

0.028
Birefringence chart\! Garyansellite title=Birefringence chart Garyansellite

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

1.733

RI value β

1.757

RI value γ / ε

1.761

Ri mean

1.750

2V angle

Biaxial (-) 55°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pbna

Cell parameters a (Å)

9.452

Cell parameters b (Å)

9.890

Cell parameters c (Å)

8.198

Cell parameters a/b or c/a

0.956

Cell parameters c/b

0.829

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

766.351

Crystal structure

N. V. Zubkova, I. V. Pekov, A. V. Kasatkin, N. V. Chukanov, D. A. Ksenofontov & D. Yu. Pushcharovsky: Crystal structure and refined formula of garyansellite Mg2Fe3+(PO4)2(OH) • 2H2O. Doklady Earth Sciences Jhrg. 467, Nr. 1 (2016) S. 299-302.

X-Ray Powder Diffraction

4.93(50),
4.26(30),
3.156(100),
3.098(40),
2.705(60),
2.535(30),
2.213(30),
2.193(30)
XRD chart Garyansellite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

190 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.16 (gemessen)

3.011 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Kanada/Yukon-Territorium/Dawson Mining District/Richardson Mountains/Rapid Creek

Preface

Author (Name, Year)

Sturman & Dunn, 1984

References

American Mineralogist 69 (1984), 207

IMA group assignments

 
Reddingite group
 
 
 

 
 
Correianevesite
Fe2+Mn2+2(PO4)2·3H2O
orthorhombisch
Pbna

 
 
Garyansellite
Mg2Fe3+(PO4)2(OH)·2 H2O
orthorhombisch
Pbna

 
 
Kryzhanovskite
(Fe3+,Mn2+)2(PO4)2(OH,H2O)3
orthorhombisch
Pbna

 
 
Landesite
(Mn,Mg)9Fe33+(PO4)8(OH)3·9H2O
orthorhombisch
Pbna

 
 
Phosphoferrite
(Fe2+,Mn)3(PO4)2·3H2O
orthorhombisch
Pbna

 
 
Reddingite
Mn32+(PO4)2·3H2O
orthorhombisch
Pbna

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Actuality: 21. Apr 2024 - 07:28:18

Other languages

German

Garyansellit

Spanish

Garyansellita

English

Garyansellite

French

Garyansellite

Russian

Гарианселлит

CNMNC (IMA)-Number

IMA 1981-019

CNMNC symbol

Symbol

Gas

Locations with GPS information

IDs

GUSID (Global unique identifier short form) TSxc_3qIIkOxFF_ICtwv4Q
GUID (Global unique identifier) FF5C2C4D-887A-4322-B114-5FC80ADC2FE1
Database ID 1337