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Stanleyite

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Stanleyit
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Stanleyit

blaugrüne Aggregate von Stanleyit auf schwarzem Patronit, Ragra Mine, Cerro de Pasco, Pasco, Peru; BB < 1 mm

Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2020-05-17
Locality: Ragra Mine (Minasragra) / Huayllay, Distrikt / Pasco, Provinz / Pasco, Region / Peru

Collectors Summary

Color tiefblau, tief Kobalt blau, aquamarin
Streak color weiß, blassblau
Hardness (Mohs) 1.00 - 1.50
Solubility +++ H2O, + Alkohole
Crystal System orthorhombisch,

Chemism

Chem­ical formula

V4+[O|SO4]·6H2O

Chem­ical com­po­si­tion

Sauerstoff, Schwefel, Vanadium, Wasserstoff

Unit weight: 271.096104 u; Number of atoms in the formula: 25

Info

Empirical formula:

V[OSO4]·6H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

4.46

12

48.00

1.0079470

12.0953640

Oxygen

O

64.92

11

44.00

15.9994300

175.9937300

Sulfur

S

11.83

1

4.00

32.0655000

32.0655000

Vanadium

V

18.79

1

4.00

50.9415100

50.9415100

Anal­y­sis wt%

V2O4 : 30.60, SO3 : 29.00, K2O : 0.40, H2O : 38.00 (Ref: Mineralogical Magazine 82)

Strunz 9th edi­tion incl. updates

7.DB.25

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
B: mit mittelgroßen Kationen; isolierte Oktaeder und begrenzte Einheiten
25:Bobjonesit-Gruppe

Lapis Clas­sifica­tion

VI/D.05-020

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
5: Mittelgroße Kationen

Clas­sifica­tion by Hölzel

7.DF.160

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
F: Minasragrite-Group

Dana 8th edi­tion

29.06.13.01

29: Hydrated Acid and Sulfates
06: Hydrated Acid and Sulfates where A XO4 · x(H2O)
13: Minasragrite Group (Orthorhombic)

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

tiefblau, tief Kobalt blau, aquamarin

Streak color

weiß, blassblau

Diaphane­ity (Trans­parency)

durchscheinend

max. Birefrin­gence

0.028

Birefringence chart\! Stanleyite title=Birefringence chart Stanleyite

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

1.505

RI value β

1.519

RI value γ / ε

1.533

Ri mean

1.519

2V angle

Biaxial (+) 88°

Ori­enta­tion

Auslöschung bis zu 15° zur Länge

Dis­per­sion

keine

Absorp­tion

X = Y > Z

Pleochro­ism

moderat; X = Y = blau; Z = sehr blass blau zu farblosen

Crystallography

Crystal Sys­tem

orthorhombisch

Cell param­e­ters a (Å)

12.12

Cell param­e­ters b (Å)

9.71

Cell param­e­ters c (Å)

14.92

Cell param­e­ters a/b or c/a

1.248

Cell param­e­ters c/b

1.537

Cell param­e­ters α

101.90

Cell param­e­ters β

95.53

Cell param­e­ters γ

92.12

Z

8

Volumne (ų)

1755.863

X-Ray Pow­der Diffrac­tion

4.98(90),
4.69(80),
4.41(60),
4.20(100),
3.81(60),
3.73(60),
3.09(20),
2.74(20)

XRD chart Stanleyite

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

Physical Properties

Hard­ness (Mohs)

1.00 - 1.50

VHN (Hard­ness Vick­ers)

14 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

1.95 (gemessen) 2.01 (berechnet)

2.051 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ H2O, + Alkohole

(Co-)Type locality

(Co-)Type locality

Peru/Pasco, Region/Pasco, Provinz/Huayllay, Distrikt/Ragra Mine (Minasragra)

Type mate­r­ial

Royal Scottish Museum, Edinburgh, Schottland

National Museum of Natural History, Washington, D.C., USA

Col­lec­tion number of type mate­r­ial

1922.11.6 (Edinburgh); 160386 (Washington)

Preface

Name from

Henry Morton Stanley (1841–1904) walisisch, amerikanischer Journalist

Author (Name, Year)

Livingstone, 1982

References

Mineralogical Magazine 45 (1982), 163

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Stanleyite

V4+[O|SO4]·6H2O

7.DB.25

Bobjonesite

(V4+O)[SO4]·3H2O

monoklin : 2/m : P21/n

7.DB.25

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Pauflerite

VO(SO4)

orthorhombisch : mmm : Pnma

VI/D.05-001

Bobjonesite

(V4+O)[SO4]·3H2O

monoklin : 2/m : P21/n

VI/D.05-002

Orthominasragrite

V4+[O|SO4]·5H2O

orthorhombisch : mm2 : Pmn21

VI/D.05-005

Minasragrite

V4+[O|SO4]·5H2O

monoklin : 2/m : P21/c

VI/D.05-010

Anorthominasragrite

V4+[O|SO4]·5H2O

triklin : 1 : P1

VI/D.05-015

Stanleyite

V4+[O|SO4]·6H2O

VI/D.05-020

Karpovite

Tl2VO(SO4)2(H2O)

monoklin : 2 : P21

VI/D.05-030

Evdokimovite

Tl4(VO)3(SO4)5(H2O)5

monoklin : 2/m : P21/n

VI/D.05-040

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Bobjonesite

(V4+O)[SO4]·3H2O

monoklin : 2/m : P21/n

7.DF.120

Minasragrite

V4+[O|SO4]·5H2O

monoklin : 2/m : P21/c

7.DF.140

Orthominasragrite

V4+[O|SO4]·5H2O

orthorhombisch : mm2 : Pmn21

7.DF.143

Anorthominasragrite

V4+[O|SO4]·5H2O

triklin : 1 : P1

7.DF.145

Stanleyite

V4+[O|SO4]·6H2O

7.DF.160

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Melanterite

Fe2+SO4·7H2O

monoklin : 2/m : P21/c

29.06.10.01

Boothite

(Cu,Mg)(SO4)·7H2O

29.06.10.02

Zincmelanterite

(Zn,Fe2+)[SO4]·7H2O

29.06.10.03

Bieberite

CoSO4·7 H2O

monoklin : 2/m : P21/c

29.06.10.04

Mallardite

Mn2+SO4·7H2O

monoklin : 2/m : P21/c

29.06.10.05

Alpersite

(Mg)SO4·7H2O

monoklin : 2/m : P21/c

29.06.10.06

Epsomite

MgSO4·7H2O

orthorhombisch : 222 : P212121

29.06.11.01

Goslarite

ZnSO4·7H2O

orthorhombisch : 222 : P212121

29.06.11.02

Morenosite

NiSO4·7H2O

orthorhombisch : 222 : P212121

29.06.11.03

Minasragrite

V4+[O|SO4]·5H2O

monoklin : 2/m : P21/c

29.06.12.01

Bobjonesite

(V4+O)[SO4]·3H2O

monoklin : 2/m : P21/n

29.06.12.02

Anorthominasragrite

V4+[O|SO4]·5H2O

triklin : 1 : P1

29.06.12.03

Stanleyite

V4+[O|SO4]·6H2O

29.06.13.01

Orthominasragrite

V4+[O|SO4]·5H2O

orthorhombisch : mm2 : Pmn21

29.06.13.02

Other languages

German

Stanleyit

Spanish

Stanleyita

French

Stanleyite

English

Stanleyite

IMA Number

IMA 1980-042

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

DeWikiPedia - search for: Stanleyit
Google-Bilder-Suche - search for: Stanleyit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Stanleyit

English pages

Mindat - search for: Stanleyite
Webmineral - search for:Stanleyite
Handbook-of-Mineralogy - search for: Stanleyite
RRUFF - Raman, XRD and other mineral data - search for: Stanleyite
RRUFF - References and PDF downloads - search for: Stanleyite
American-Mineralogist-Crystal-Structure-Database - search for: Stanleyite
Athena - search for: Stanleyite

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Stanleyit
Bosse - search for: Stanleyit

Locations with GPS information