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Plancheite

Pictures (26 Images total)

Dioptas auf Plancheit
Views (File:
1108650777
): 3631, Rating: 8.5
Dioptas auf Plancheit
Fundort: Omaue, Kaokoveld Plateau, Kaokoland District, Namibia, Afrika; Bildbreite: 12mm
Copyright: Dominik Schläfli; Contribution: Mineralienatlas
Location: Namibia/Kunene, Region/Kaokoveld Plateau/Omaue Mine
Mineral: Dioptase, Plancheite
Image: 1108650777
Rating: 8.5 (votes: 12)
License: Usage for Mineralienatlas project only
Dioptas auf Plancheit

Fundort: Omaue, Kaokoveld Plateau, Kaokoland District, Namibia, Afrika; Bildbreite: 12mm
Copyright: Dominik Schläfli
Contribution: Mineralienatlas 2005-02-17
Locality: Omaue Mine / Kaokoveld Plateau / Kunene, Region / Namibia
Plancheit
Views (File:
1219706925
): 4053, Rating: 8.67
Plancheit
radialstrahlig, als Hohlraumfüllung; Größe: ca. 4 x 4 cm; Fundort: Omaue Mine, Kaokoveld Plateau, Kunene Region, Namibia
Copyright: Goldi85; Contribution: Goldi85
Collection: Goldi85, Collection number: 24A
Location: Namibia/Kunene, Region/Kaokoveld Plateau/Omaue Mine
Mineral: Plancheite
Image: 1219706925
Rating: 8.67 (votes: 9)
License: Usage for Mineralienatlas project only
Plancheit (SNr: 24A)

radialstrahlig, als Hohlraumfüllung; Größe: ca. 4 x 4 cm; Fundort: Omaue Mine, Kaokoveld Plateau, Kunene Region, Namibia
Collection: Goldi85
Copyright: Goldi85
Contribution: Goldi85 2008-08-26
Locality: Omaue Mine / Kaokoveld Plateau / Kunene, Region / Namibia
Plancheit
Views (File:
1163095433
): 2661, Rating: 8.5
Plancheit
Bildbreite: 5 mm; Fundort Shinkolobwe Mine, Shaba Cu-Belt, Kongo
Copyright: Stephan Wolfsried; Contribution: Hg
Location: Demokratische Republik Kongo/Katanga (Shaba), Provinz/Ober-Katanga (Haut-Katanga), Distrikt/Shinkolobwe (Kasolo)/Shinkolobwe Mine (Kasolo Mine)
Mineral: Plancheite
Image: 1163095433
Rating: 8.5 (votes: 4)
License: Usage for Mineralienatlas project only
Plancheit

Bildbreite: 5 mm; Fundort Shinkolobwe Mine, Shaba Cu-Belt, Kongo
Copyright: Stephan Wolfsried
Contribution: Hg 2006-11-09
Locality: Shinkolobwe Mine (Kasolo Mine) / Shinkolobwe (Kasolo) / Ober-Katanga (Haut-Katanga), Distrikt / Katanga (Shaba), Provinz / Demokratische Republik Kongo
Plancheit
Views (File:
1422384828
): 834
Plancheit
Nadelige blaue Kristalle, BB = 4 mm, Fundort: Eagle Eye Mine, New Water District, La Paz Co., Arizona, USA.
Copyright: Manfred Früchtl; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A029456, Donator: Peter Köhlen
Location: USA/Arizona/La Paz Co./New Water Mts/New Water District/Eagle Eye Mine
Mineral: Plancheite
Image: 1422384828
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
Plancheit (SNr: A029456)

Nadelige blaue Kristalle, BB = 4 mm, Fundort: Eagle Eye Mine, New Water District, La Paz Co., Arizona, USA.
Collection: Lithothek der Münchener Micromounter
Copyright: Manfred Früchtl
Contribution: Münchener Micromounter 2015-01-27
Locality: Eagle Eye Mine / New Water District / New Water Mts / La Paz Co. / Arizona / USA
kugelig aggregierter, nadeliger, blauer Plancheit (analysiert)
Views (File:
1522591017
): 270
kugelig aggregierter, nadeliger, blauer Plancheit (analysiert)
von der Eagle Eye Mine im La Paz County, Arizona, USA; BB = 1,6 mm
Copyright: Bebo; Contribution: Münchener Micromounter
Collection: Lithothek der Münchener Micromounter, Collection number: A004138, Donator: Peter Köhlen
Location: USA/Arizona/La Paz Co./New Water Mts/New Water District/Eagle Eye Mine
Mineral: Plancheite
Image: 1522591017
Rating: 9 (votes: 1)
License: Usage for Mineralienatlas project only
kugelig aggregierter, nadeliger, blauer Plancheit (analysiert) (SNr: A004138)

von der Eagle Eye Mine im La Paz County, Arizona, USA; BB = 1,6 mm
Collection: Lithothek der Münchener Micromounter
Copyright: Bebo
Contribution: Münchener Micromounter 2018-04-01
Locality: Eagle Eye Mine / New Water District / New Water Mts / La Paz Co. / Arizona / USA
Dioptas mit Plancheit
Views (File:
1228639294
): 3162, Rating: 7.82
Dioptas mit Plancheit
Bildbreite: 2,9 mm; Fundort: Omaue Mine, Kaokofeld-Plateau, Kunene, Namibia
Copyright: Dominik Schläfli; Contribution: slugslayer
Location: Namibia/Kunene, Region/Kaokoveld Plateau/Omaue Mine
Mineral: Dioptase, Plancheite
Image: 1228639294
Rating: 7.82 (votes: 11)
License: Usage for Mineralienatlas project only
Dioptas mit Plancheit

Bildbreite: 2,9 mm; Fundort: Omaue Mine, Kaokofeld-Plateau, Kunene, Namibia
Copyright: Dominik Schläfli
Contribution: slugslayer 2008-12-07
Locality: Omaue Mine / Kaokoveld Plateau / Kunene, Region / Namibia

You find additional Plancheite specimen at the Geolitho Museum

Collectors Summary

Color blau
Streak color hellblau
Hardness (Mohs) 5.5
Solubility +++ Säuren
Crystal System orthorhombisch, Pcnb

Chemism

Chemical formula

Cu8Si8O22(OH)4·H2O

Chemical composition

Kupfer, Silicium, Sauerstoff, Wasserstoff

Unit weight: 1171.086932 u; Number of atoms in the formula: 49

Info

Empirical formula:

Cu8Si8O22(OH)4·H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Hydrogen

H

0.52

6

12.24

1.0079470

6.0476820
Oxygen

O

36.89

27

55.10

15.9994300

431.9846100
Silicon

Si

19.19

8

16.33

28.0855300

224.6842400
Copper

Cu

43.41

8

16.33

63.5463000

508.3704000

Analysis wt%

SiO2 : 36.40, CuO : 58.45, H2O : 3.70 (Ref: Bulletin de Mineralogie 61)

Strunz 9th edition incl. updates

9.DB.35

9: Silikate (Germanate)
D: Ketten- und Bandsilikate (Inosilikate)
B: Ketten- und Bandsilikate mit 2 periodischen Ketten SiO6; mit zusätzlich O, OH, H2O Pyroxen-verwandte Mineralien
35:Planchéit-Gruppe

Lapis Classification

VIII/F.05-010

VIII: SILIKATE
F: Ketten- und Bandsilikate
5: Zweierketten [Si2O6] 4-

Classification by Hölzel

9.DE.420

9: SILICATES
D: Inosilicates; ~[Si2O6]4--...2-Chain
E: Orthorhombic Pyroxenes and Pyroxenoides
4: Shattuckite-Group

Dana 8th edition

66.02.01.01

66: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2
02: Inosilicates Inosilicate Double-Width Unbranched Chains, W=2 with P=2 non-amphibole configuration
01: Plancheite Group

IMA status

Neudefinition von der CNMNC anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

blau

Streak color

hellblau

max. Birefringence

0.044
Birefringence chart\! Plancheite title=Birefringence chart Plancheite

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

1.697

RI value β

1.718

RI value γ / ε

1.741

Ri mean

1.719

2V angle

Biaxial (+) 89°

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

60

Space Group

Pcnb

Cell parameters a (Å)

19.043

Cell parameters b (Å)

20.129

Cell parameters c (Å)

5.269

Cell parameters a/b or c/a

0.946

Cell parameters c/b

0.262

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

2019.695

X-Ray Powder Diffraction

10.10(100),
9.557(40),
6.936(70),
4.869(50),
4.057(80),
3.948(40),
3.565(30),
3.306(40)
XRD chart Plancheite

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)

5.5

VHN (Hardness Vickers)

530 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.73 (gemessen)

3.851 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

(Co-)Type locality

(Co-)Type locality

Republik Kongo/Pool, Region/Mindouli, Distrikt/Mindouli/Sanda Mine

Preface

Author (Name, Year)

Lacroix, 1908

References

Handbook of Mineralogy (Anthony et al.), 2 (1995), 651

Other languages

German

Plancheit

French

Plancheite

English

Plancheite

Spanish

Plancheíta

Russian

Планшеит

Alternative Name

Katangait

Spanish

Katangaita

English

Katangaite

French

Katangaite

Katangaite

Katangit

Katangite

Italian

Planchéita

CNMNC symbol

Symbol

Pch

Locations with GPS information