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Yavapaiite (Yavapaiit)

Pictures (2 Images total)

Yavapaiit
Views (File:
1586176615
): 293
Yavapaiit
weißes, radialstrahliges Aggregat von Yavapaiit, Alcaparrosa Mine, Cerritos Bayos, Antofagasta Region, Chile; BB ~ 3 mm, analysiert
Copyright: Joy Desor; Contribution: openpit
Location: Chile/Antofagasta, Region (II. Region)/Antofagasta, Provinz/Sierra Gorda, Comuna/Alcaparrosa Mine
Mineral: Yavapaiite
Image: 1586176615
License: Usage for Mineralienatlas project only
Yavapaiit

weißes, radialstrahliges Aggregat von Yavapaiit, Alcaparrosa Mine, Cerritos Bayos, Antofagasta Region, Chile; BB 3 mm, analysiert
Copyright: Joy Desor
Contribution: openpit 2020-04-06
Locality: Alcaparrosa Mine / Sierra Gorda, Comuna / Antofagasta, Provinz / Antofagasta, Region (II. Region) / Chile
Yavapaiit
Views (File:
1631871208
): 125
Yavapaiit
Grotta dell'Allume, Vulcano; Bb 3 mm; Analysiert von Dr. M. Murashko; Ex-Dieter Nockolay Sammlung; Begleitmineralien: Metavoltin, Halotrichit.
Copyright: Guy Heinen; Contribution: guyhein
Collection: Guy Heinen
Location: Italien/Sizilien (Sicilia), Region/Messina, Provinz/Äolische (Liparische) Inseln (Isole Eolie; Isole Lipari)/Vulcano, Insel/Porto Levante/Faraglione Nico/Grotta dell'Allume
Mineral: Yavapaiite
Image: 1631871208
License: Usage for Mineralienatlas project only
Yavapaiit

Grotta dell'Allume, Vulcano; Bb 3 mm; Analysiert von Dr. M. Murashko; Ex-Dieter Nockolay Sammlung; Begleitmineralien: Metavoltin, Halotrichit.
Collection: Guy Heinen
Copyright: Guy Heinen
Contribution: guyhein 2021-09-17
Locality: Grotta dell'Allume / Faraglione Nico / Porto Levante / Vulcano, Insel / Äolische (Liparische) Inseln (Isole Eolie; Isole Lipari) / Messina, Provinz / Sizilien (Sicilia), Region / Italien

Collectors Summary

Color blassrosa
Streak color weißlichgelb
Hardness (Mohs) 2.50 - 3.00
Solubility +++ H2O
Crystal System monoklin, C2/m

Chemism

Chemical formula

KFe3+(SO4)2

Chemical composition

Eisen, Kalium, Sauerstoff, Schwefel

Unit weight: 287.06995 u; Number of atoms in the formula: 12

Info

Empirical formula:

KFe(SO4)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Oxygen

O

44.59

8

66.67

15.9994300

127.9954400
Sulfur

S

22.34

2

16.67

32.0655000

64.1310000
Potassium

K

13.62

1

8.33

39.0983100

39.0983100
Iron

Fe

19.45

1

8.33

55.8452000

55.8452000

Analysis wt%

K2O : 15.39, Na2O : 0.62, Fe2O3 : 27.69, SO3 : 55.58 (Ref: American Mineralogist 59)

Strunz 9th edition incl. updates

7.AC.15

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
A: Sulfate (Selenate, etc.) ohne weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen Kationen
15:Yavapaiit-Gruppe

Lapis Classification

VI/A.04-020

VI: SULFATE, CHROMATE, MOLYBDATE UND WOLFRAMATE
A: Wasserfreie Sulfate [SO4] 2-, ohne fremde Anionen
4: Mittelgroße und sehr große Kationen

Classification by Hölzel

7.AB.300

7: SULFATES CHROMATES MOLYBDATES WOLFRAMATES
A: Sulfates (-Anions -Water)
B: Sulfates, C medium + large

Dana 8th edition

28.03.04.01

28: Sulfate Minerals
03: Anhydrous Acid and Sulfates (A++) XO4

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

blassrosa

Streak color

weißlichgelb

max. Birefringence

0.105
Birefringence chart\! Yavapaiite title=Birefringence chart Yavapaiite

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

1.593

RI value β

1.684

RI value γ / ε

1.698

Ri mean

1.658

2V angle

Biaxial (-) 31°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

12

Space Group

C2/m

Cell parameters a (Å)

8.12

Cell parameters b (Å)

5.14

Cell parameters c (Å)

7.82

Cell parameters a/b or c/a

1.580

Cell parameters c/b

1.521

Cell parameters α

90°

Cell parameters β

94.40

Cell parameters γ

90°

Z

2

Volume (ų)

325.42

X-Ray Powder Diffraction

7.85(90),
4.05(40),
3.87(80),
3.73(70),
3.49(60),
2.97(100),
2.842(70),
2.394(80)
XRD chart Yavapaiite

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)

2.50 - 3.00

VHN (Hardness Vickers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.88 (gemessen)

2.93 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

(Co-)Type locality

(Co-)Type locality

USA/Arizona/Yavapai County/Black Hills/Verde District/Jerome/United Verde Mine

Preface

Author (Name, Year)

Hutton, 1959

References

American Mineralogist 44 (1959), 1105

Other languages

German

Yavapaiit

English

Yavapaiite

French

Yavapaiite

Spanish

Yavapaiíta

Russian

Явапайит

Simplified Chinese

斜钾铁矾

CNMNC symbol

Symbol

Yav

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Pj9ulMwbiU6hEnLSvW6K0Q
GUID (Global unique identifier) 946E3F3E-1BCC-4E89-A112-72D2BD6E8AD1
Database ID 4226