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Guildite

Pictures (2 Images total)

Guildit
Views (Image: 1600025951): 173
Guildit

Guildit + Ni. braun gelbe Kruste; Bildbreite: 6 mm; Fundort: Richelsdorfer Hütte

Collection: Werner Simon
Copyright: Werner Simon
Contribution: Steinkautz 2020-09-13
Locality: Richelsdorfer Hütte / Verhüttungsplätze / Richelsdorfer Gebirge / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland
Guildit
Views (Image: 1600086990): 155
Guildit

Guildit + Ni. auf Kupferglanz und Kupfer; Bildbreite: 4 mm; Fundort: Richelsdorfer Hütte.

Collection: Werner Simon
Copyright: Werner Simon
Contribution: Steinkautz 2020-09-14
Locality: Richelsdorfer Hütte / Verhüttungsplätze / Richelsdorfer Gebirge / Hersfeld-Rotenburg, Landkreis / Kassel, Bezirk / Hessen / Deutschland

Collectors Summary

Color braun, honiggelb, dunkelbraun
Streak color hellgelb
Hardness (Mohs) 2.5
Solubility +++ Säuren
Crystal System monoklin, P21/m

Chemism

Chem­ical formula

CuFe3+(SO4)2(OH)·4H2O

Chem­ical com­po­si­tion

Eisen, Kupfer, Sauerstoff, Schwefel, Wasserstoff

Unit weight: 400.586613 u; Number of atoms in the formula: 26

Info

Empirical formula:

CuFe(SO4)2(OH)·4H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.26

9

34.62

1.0079470

9.0715230

Oxygen

O

51.92

13

50.00

15.9994300

207.9925900

Sulfur

S

16.01

2

7.69

32.0655000

64.1310000

Iron

Fe

13.94

1

3.85

55.8452000

55.8452000

Copper

Cu

15.86

1

3.85

63.5463000

63.5463000

Anal­y­sis wt%

Na2O : 1.23, CuO : 15.78, FeO : 1.49, Fe2O3 : 19.12, Al2O3 : 2.11, SO3 : 39.68, H2O : 22.15 (Ref: American Mineralogist 28)

Strunz 9th edi­tion incl. updates

7.DC.30

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
D: Sulfate (Selenate, etc.) mit weitere Anionen, mit H2O
C: mit mittelgroßen Kationen; Ketten von kantenverknüpften Oktaedern
30:Guildit-Gruppe

Lapis Clas­sifica­tion

VI/D.10-100

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
D: Wasserhaltige Sulfate, mit fremden Anionen
10: Mittelgroße Kationen; Copiapit-Gruppe

Clas­sifica­tion by Hölzel

7.DC.300

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
D: Sulfates (+Anions +Water)
C: Copiapite-Group

Dana 8th edi­tion

31.09.07.01

31: Hydrated Sulfates Containing Hydroxyl or Halogen
09: Hydrated Sulfates Containing Hydroxyl or Halogen where (A+ B++) (XO4) Zq·x(H2O)

IMA sta­tus

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

braun, honiggelb, dunkelbraun

Streak color

hellgelb

Diaphane­ity (Trans­parency)

transparent bis durchscheinend

max. Birefrin­gence

0.059

Birefringence chart\! Guildite title=Birefringence chart Guildite

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

1.622

RI value β

1.628

RI value γ / ε

1.681

Ri mean

1.644

2V angle

Biaxial (+) 62°

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Crystal Sys­tem

monoklin

Class (H-M)

2/m

Space Group number

11

Space Group

P21/m

Cell param­e­ters a (Å)

9.786

Cell param­e­ters b (Å)

7.134

Cell param­e­ters c (Å)

7.263

Cell param­e­ters a/b or c/a

1.372

Cell param­e­ters c/b

1.018

Cell param­e­ters α

90°

Cell param­e­ters β

105.30

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

489.083

X-Ray Pow­der Diffrac­tion

9.46(30),
4.998(30),
3.606(20),
3.144(100),
2.909(10),
2.879(10),
2.355(10),
2.076(10)

XRD chart Guildite

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)

2.5

VHN (Hard­ness Vick­ers)

53 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.73

2.72 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+++ Säuren

Preface

Author (Name, Year)

Lausen, 1928

References

American Mineralogist 55 (1970), 502

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

Guildite

CuFe3+(SO4)2(OH)·4H2O

monoklin : 2/m : P21/m

7.DC.30

Chaidamuite

(Zn,Fe2+)Fe3+OH(SO4)2·4H2O

triklin : 1 : P1

7.DC.30

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

Botryogen

MgFe3+(SO4)2(OH)·7H2O

monoklin : 2/m : P21/n

VI/D.10-010

Zincobotryogen

ZnFe3+(SO4)2(OH)·7H2O

monoklin : 2/m : P21/n

VI/D.10-020

Calciocopiapite

CaFe43+(SO4)6(OH)2·19 H2O

triklin : 1 : P1

VI/D.10-030

Magnesiocopiapite

MgFe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

VI/D.10-040

Copiapite

Fe2+Fe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

VI/D.10-050

Cuprocopiapite

CuFe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

VI/D.10-060

Zincocopiapite

ZnFe43+(SO4)6(OH)2·18H2O

triklin : 1 : P1

VI/D.10-070

Aluminocopiapite

(Al,Mg)Fe3+4(SO4)6(OH,O)2·20H2O

triklin : 1 : P1

VI/D.10-080

Ferricopiapite

Fe2-33+Fe43+(SO4)6(OH)2·20H2O

triklin : 1 : P1

VI/D.10-090

Guildite

CuFe3+(SO4)2(OH)·4H2O

monoklin : 2/m : P21/m

VI/D.10-100

Chaidamuite

(Zn,Fe2+)Fe3+OH(SO4)2·4H2O

triklin : 1 : P1

VI/D.10-110

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

Guildite

CuFe3+(SO4)2(OH)·4H2O

monoklin : 2/m : P21/m

7.DC.300

Chaidamuite

(Zn,Fe2+)Fe3+OH(SO4)2·4H2O

triklin : 1 : P1

7.DC.310

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

Butlerite

Fe3+(SO4)(OH)·2H2O

monoklin : 2/m : P21/m

31.09.01.01

Parabutlerite

Fe3+(SO4)(OH)·2H2O

orthorhombisch : mmm : Pmnb

31.09.02.01

Amarantite

Fe3+2O(SO4)2(H2O)4·3H2O

triklin : 1 : P1

31.09.03.01

Hohmannite

Fe23+(SO4)2(OH)2·7H2O

triklin : 1 : P1

31.09.04.01

Metahohmannite

Fe23+(SO4)2(OH)2·3H2O

triklin : 1 : P1

31.09.05.01

Botryogen

MgFe3+(SO4)2(OH)·7H2O

monoklin : 2/m : P21/n

31.09.06.01

Zincobotryogen

ZnFe3+(SO4)2(OH)·7H2O

monoklin : 2/m : P21/n

31.09.06.02

Xitieshanite

Fe3+(SO4)Cl·6H2O

monoklin : 2/m : P21/a

31.09.06.03

Guildite

CuFe3+(SO4)2(OH)·4H2O

monoklin : 2/m : P21/m

31.09.07.01

Chaidamuite

(Zn,Fe2+)Fe3+OH(SO4)2·4H2O

triklin : 1 : P1

31.09.07.02

Aubertite

CuAl(SO4)2Cl·14H2O

triklin : 1 : P1

31.09.08.01

Svyazhinite

(Mg,Mn)(Al,Fe3+)(SO4)2F·14 H2O

triklin : 1, 1 : P1, P1

31.09.08.02

Magnesioaubertite

(Mg,Cu)Al(SO4)2Cl·14 H2O

triklin : P1 : 1

31.09.08.03

Wilcoxite

MgAl(SO4)2F·18H2O

triklin : 1, 1 : P1, P1

31.09.09.01

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Guildite

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Гильдит

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German pages

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