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Mojaveite

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Mojaveite
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Mojaveite
Blue green plates of mojaveite on kettnerite with hemimorphite. FOV 1.2mm. I collected this specimen from the "E" site dump in 2-08; Blue Bell Mine, Baker, Soda Lake Mts, San Bernardino Co., California, USA
Copyright: Brent Thorne; Contribution: Stefan
Collection: Brent Thorne
Location: USA/Kalifornien (California)/San Bernardino Co./Baker/Blue Bell Mine (Blue Bell Claims; Hard Luck Claims)
Mineral: Mojaveite
Image: 1435631895
Rating: 4 (votes: 1)
License: Usage for Mineralienatlas project only
Mojaveite

Blue green plates of mojaveite on kettnerite with hemimorphite. FOV 1.2mm. I collected this specimen from the "E" site dump in 2-08; Blue Bell Mine, Baker, Soda Lake Mts, San Bernardino Co., Califo...

Collection: Brent Thorne
Copyright: Brent Thorne
Contribution: Stefan 2015-06-30
Locality: Blue Bell Mine (Blue Bell Claims; Hard Luck Claims) / Baker / San Bernardino Co. / Kalifornien (California) / USA

Collectors Summary

Color grünlich-blau, himmelblau
Streak color hell grünlich-blau
Lustre Diamantglanz, Perlglanz, matt
Hardness (Mohs) rund 1
Cleavages sehr vollkommen nach {001}
Fracture uneben
Crystal System trigonal, R3
Morphology abgeflachte Plättchen nach {001} mit hexagonalem Querschnitt, daneben {001}, {100}, {010}, {110}, {120} weiterhin Verwachsungen, unter anderem zu kugeligen Aggregaten

Chemism

Chemical formula

Cu6[Te6+O4(OH)2](OH)7Cl

Empirical formula (analysis)

Cu5.92Te1.00Pb0.08Bi0.01O4(OH)8.94Cl1.06

Chemical composition

Chlor, Kupfer, Tellur, Sauerstoff, Wasserstoff

Unit weight: 776.0877622 u; Number of atoms in the formula: 29.95

Info

Empirical formula:

Cu5.92Te1.00Pb0.08Bi0.01O4(OH)8.94Cl1.06

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.16

8.94

29.85

1.0079470

9.0110462

Oxygen

O

26.68

12.94

43.21

15.9994300

207.0326242

Chlorine

Cl

4.84

1.06

3.54

35.4532000

37.5803920

Copper

Cu

48.47

5.92

19.77

63.5463000

376.1940960

Tellurium

Te

16.44

1

3.34

127.6030000

127.6030000

Lead

Pb

2.14

0.08

0.27

207.2100000

16.5768000

Bismuth

Bi

0.27

0.01

0.03

208.9803820

2.0898038

Analysis wt%

CuO : 56.74, PbO : 2.14, Bi2O3 : 0.33, TeO3 : 21.12, Cl : 4.51, H2O* : 9.71, Total: 93.53; EPMA (Mills et al. 2014); *berechnet

Strunz 9th edition incl. updates

7.BC.

7: Sulfate (Selenate, Tellurate, Chromate, Molybdate, Wolframate)
B: Sulfate (Selenate, etc.) mit weitere Anionen, ohne H2O
C: Mit mittelgroßen und großen [Kationen]

Lapis Classification

IV/K.15-017

IV: OXIDE
K: Sulfite, Selenite, Tellurite
15: Tellurate mit [Te6+O6] 6--Gruppen und verwandte Strukturen

IMA status

anerkannt - CNMNC Newsletter No. 20, June 2014

Mineral status

anerkanntes Mineral

Optical Properties

Color

grünlich-blau, himmelblau

Streak color

hell grünlich-blau

Lustre

Diamantglanz, Perlglanz, matt

RI value α / ω / n

>> 1.8

RI value γ / ε

>> 1.8

Ri mean

1.95

2V angle

einachsig (-)

Pleochroism

O = grünlich blau >> E = hell grünlich blau

Optical Data Luminescence

Luminescence

keine

Crystallography

Crystal System

trigonal

Class (H-M)

3

Space Group number

146

Space Group

R3

Cell parameters a (Å)

8.316(2)

Cell parameters b (Å)

-

Cell parameters c (Å)

13.202(6)

Cell parameters a/b or c/a

1.588

Cell parameters c/b

-

Volume (ų)

790.677

Crystal structure

Verwandt mit Bluebellit

X-Ray Powder Diffraction

4.403(91), 2.672(28), 2.512(100), 2.110(27), 1.889(34), 1.570(39), 1.481(34), 1.338(14)

XRD chart Mojaveite

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

Morphology

abgeflachte Plättchen nach {001} mit hexagonalem Querschnitt, daneben {001}, {100}, {010}, {110}, {120} weiterhin Verwachsungen, unter anderem zu kugeligen Aggregaten

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hardness (Mohs)

rund 1

Density (g/cm³)

4.886 (berechnet)

Cleavages

sehr vollkommen nach {001}

Fracture

uneben

Radioactivity

keine

(Co-)Type locality

(Co-)Type locality

USA/Kalifornien (California)/San Bernardino Co./Baker/Blue Bell Mine (Blue Bell Claims; Hard Luck Claims)

USA/Kalifornien (California)/San Bernardino Co./Baker/Otto Mountain/Aga Mine

USA/Kalifornien (California)/San Bernardino Co./Baker/Otto Mountain/Bird Nest drift

Type material

Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles California 90007, USA

Geosciences collections, Museum Victoria, Melbourne, Victoria, Australia

Collection number of type material

64091 und 64092(Blue Bell claims) und 64093 and 64094 (Bird Nest drift) (Los Angeles)

M53019 (Bir

Preface

Generation conditions

Zersetzungsprodukt von Hessit und Chalcopyrit unter leicht sauren Bedingungen

Associations

Cerussit, Chlorargyrit, Chrysokoll, Hemimorphit, Kettnerit, Khinit, Perit, Quarz, Wulfenit

Author (Name, Year)

S. J. Mills, A. R. Kampf, A. G. Christy, R. M. Housley, G. R. Rossman, R. E. Reynolds, J. Marty (2014)

References

Mills, S.J., Kampf, A.R., Christy, A.G., Housley, R.M., Rossman, G.R., Reynolds, R.E., Marty, J. (2014): Mojaveite and bluebellite, two new minerals from the central Mojave Desert. 2014 Desert Symposium Volume, California State University, Desert Studies Consortium.

Mills, S.J., Kampf, A.R., Christy, A.G., Housley, R.M., Rossman, G.R. and Marty, J. (2014) Mojaveite, IMA 2013-120. CNMNC Newsletter No. 20, June 2014, page 550; Mineralogical Magazine, 78, 549-558.

S. J. Mills, A. R. Kampf, A. G. Christy, R. M. Housley, G. R. Rossman, R. E. Reynolds, J. Marty: Bluebellite and mojaveite, two new minerals from the central Mojave Desert, California, USA. Mineral Mag Vol. 78, Nr. 5 (2014) S. 1325-1340.

Other languages

German

Mojaveit

English

Mojaveite

CNMNC (IMA)-Number

IMA 2013-120

CNMNC symbol

Symbol

Moj

Locations with GPS information

IDs

GUSID (Global unique identifier short form) Cyro1Agg-U-PoHpmp6yNPQ
GUID (Global unique identifier) D4E82A0B-2008-4FF9-8FA0-7A66A7AC8D3D
Database ID 7751