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Numanoite (碳硼铜钙石)

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Numanoit
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Numanoit

Bildbreite: 3 mm, Fundort: Fuka Mine, Bitchu-cho, Takahashi, Präfektur Okayama, Region Chugoku, Insel Honshu, Japan

Copyright: Luigi Chiappino
Contribution: thdun5 2011-01-29
Locality: Fuka Mine / Bitchu (Bicchu) / Takahashi / Okayama, Präfektur / Chugoku, Region / Honshu / Japan

Collectors Summary

Color bläulich-grün
Streak color weiß - blass blaugrün
Lustre Glasglanz
Hardness (Mohs) 4.5
Cleavages vollkommen in two directions
Solubility +++ unter aufbrausen in verdünnte HCl

Chemism

Chem­ical formula

Ca4CuB4O6(OH)6(CO3)2

Addi­tional chem. informa­tion

Cu-dominiertes Analog von Borcarit

Chem­ical com­po­si­tion

Calcium, Kupfer, Bor, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 585.165682 u; Number of atoms in the formula: 35

Info

Empirical formula:

Ca4CuB4O6(OH)6(CO3)2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.03

6

17.14

1.0079470

6.0476820

Boron

B

7.39

4

11.43

10.8117000

43.2468000

Carbon

C

4.11

2

5.71

12.0107800

24.0215600

Oxygen

O

49.22

18

51.43

15.9994300

287.9897400

Calcium

Ca

27.40

4

11.43

40.0784000

160.3136000

Copper

Cu

10.86

1

2.86

63.5463000

63.5463000

Anal­y­sis wt%

B2O3 : 24.09, CO2 : 15.80, CuO : 10.32, MgO : 1.02, ZnO : 0.51, CaO : 38.11, H2O : 9.75 (Ref: Canadian Mineralogist 2007)

Strunz 9th edi­tion incl. updates

6.DA.40

6: Borate
D: Tetraborate
A: Insel(Neso)-Tetraborate
40:Borcarit-Gruppe

Lapis Clas­sifica­tion

V/H.13-020

V: NITRATE, CARBONATE UND BORATE
H: Gruppenborate
13: Planare und tetraedrische Gruppen [B3O5] 1- bis [B6O10] 2-

Clas­sifica­tion by Hölzel

6.DA.210

6: Borates
D: Tetraborates
A: Nesotetraborates
2: Borcarite-Group - 4(4T)

IMA sta­tus

anerkannt 2005

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

bläulich-grün

Streak color

weiß - blass blaugrün

Diaphane­ity (Trans­parency)

semitransparent

Lus­tre

Glasglanz

max. Birefrin­gence

0.054

Birefringence chart\! Numanoite title=Birefringence chart Numanoite

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

1.618

RI value β

1.658

RI value γ / ε

1.672

Ri mean

1.649

2V angle

Biaxial (-) 60°

Pleochro­ism

kein

Optical Data Luminescence

Lumi­nes­cence

keine Fluoreszenz bekannt

Crystallography

Cell param­e­ters a (Å)

17.794

Cell param­e­ters b (Å)

8.381

Cell param­e­ters c (Å)

4.449

Cell param­e­ters a/b or c/a

2.123

Cell param­e­ters c/b

0.531

Cell param­e­ters α

90°

Cell param­e­ters β

102.42

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

648.0

X-Ray Pow­der Diffrac­tion

7.57(100), 2.899(44), 2.727(68), 2.671(84), 2.272(48), 2.201(28), 1.887(52), 1.698(34)

XRD chart Numanoite

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

Physical Properties

Hard­ness (Mohs)

4.5

VHN (Hard­ness Vick­ers)

376 (25g)

Density (g/cm³)

2.96

2.999 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen in two directions

Insta­bil­ity

+++ unter aufbrausen in verdünnte HCl

Chem­ical Prop­er­ties and Tests

leicht löslich in verd. Salzsäure unter Aufbrausen

Preface

Asso­cia­tions

Bultfonteinit, Borcarit, Calcit

Name from

Tadayuki Numano (Professor der Okayama-Universität, Japan)

References

Mineralien Welt 05/08, Steffen Jahn, Die neuen Mineralien 2007 - 2008

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

Borcarite

Ca4MgB4O6(OH)6(CO3)2

monoklin : 2/m : C2/m

6.DA.40

Numanoite

Ca4CuB4O6(OH)6(CO3)2

6.DA.40

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

Borcarite

Ca4MgB4O6(OH)6(CO3)2

monoklin : 2/m : C2/m

V/H.13-010

Numanoite

Ca4CuB4O6(OH)6(CO3)2

V/H.13-020

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

Borcarite

Ca4MgB4O6(OH)6(CO3)2

monoklin : 2/m : C2/m

6.DA.200

Alfredstelznerite

Ca4(H2O)4[B4O4(OH)6]4(H2O)15

orthorhombisch : mm2 : Pca21

6.DA.200

Numanoite

Ca4CuB4O6(OH)6(CO3)2

6.DA.210

Other languages

German

Numanoit

English

Numanoite

Simplified Chinese

碳硼铜钙石

Alternative Name

Japanese

沼野石

IMA Number

IMA 2005-050

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

German pages

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

English pages

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

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Numanoit
Crystal-Treasure.com - search for: Numanoit
Bosse - search for: Numanoit

Locations with GPS information




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