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Sclarite

Collectors Summary

Color farblos
Streak color weiß
Hardness (Mohs) 3.5
Solubility +++ Säuren
Crystal System monoklin, A2/a

Chemism

Chemical formula

(Zn,Mg,Mn2+)4Zn3(CO3)2(OH)10

Chemical composition

Magnesium, Mangan, Zink, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 694.44396196 u; Number of atoms in the formula: 35

Info

Empirical formula:

(Zn0.6Mg0.3Mn0.1)4Zn3(CO3)2(OH)10

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

1.45

10

28.57

1.0079470

10.0794700

Carbon

C

3.46

2

5.71

12.0107800

24.0215600

Oxygen

O

36.86

16

45.71

15.9994300

255.9908800

Magnesium

Mg

4.20

1.2

3.43

24.3050600

29.1660720

Manganese

Mn

3.16

0.4

1.14

54.9380499

21.9752200

Zinc

Zn

50.86

5.4

15.43

65.4094000

353.2107600

Analysis wt%

MgO : 6.70, MnO : 4.20, ZnO : 62.00, CO2 : 12.67, H2O : 12.97 (Ref: American Mineralogist 89)

Strunz 9th edition incl. updates

5.BA.30

5: Carbonate (Carbonate, Nitrate)
B: Carbonate mit weitere Anionen, ohne H2O
A: Mit [Cu], [Co], [Ni], [Zn], [Mg], [Mn]
30:Loseyit-Gruppe

Lapis Classification

V/C.01-130

V: NITRATE, CARBONATE UND BORATE
C: Wasserfreie Carbonate, mit fremden Anionen
1: Azurit-Rosasit-Reihe

Classification by Hölzel

5.BA.405

5: CARBONATES NITRATES ARSENITES SULFITES SELENITES TELLURITES IODATES
B: Carbonates (+Anions -Water)
A: With small-medium cations, V=2
4: Sclarite-Group

Dana 8th edition

16a.05.03.02

16a: Carbonates - Hydroxyl or Halogen
05: Carbonates - Hydroxyl or Halogen with miscellaneous formulae

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

farblos

Streak color

weiß

Diaphaneity (Transparency)

transparent

max. Birefringence

0.054

Birefringence chart\! Sclarite title=Birefringence chart Sclarite

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

1.648

RI value β

1.664

RI value γ / ε

1.702

Ri mean

1.671

2V angle

Biaxial (+) 63°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

15

Space Group

A2/a

Cell parameters a (Å)

16.110

Cell parameters b (Å)

5.432

Cell parameters c (Å)

15.041

Cell parameters a/b or c/a

2.966

Cell parameters c/b

2.769

Cell parameters α

90°

Cell parameters β

95.48

Cell parameters γ

90°

Z

4

Volume (ų)

1310.215

X-Ray Powder Diffraction

7.50(100),
5.23(20),
3.75(40),
3.63(50),
3.53(40),
2.621(50),
2.500(40),
2.281(30)

XRD chart Sclarite

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)

3.5

VHN (Hardness Vickers)

130 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

3.51

3.52 ( ρ calc. Mineralienatlas )

Instability

+++ Säuren

Preface

Name from

Charles Bertram Sclar (1925-2001), ehemals Professor für Geologie

Author (Name, Year)

Grice & Dunn, 1989

References

American Mineralogist 74 (1989), 1355

Other languages

German

Sclarit

Spanish

Sclarita

English

Sclarite

French

Sclarite

Russian

Склярит

CNMNC (IMA)-Number

IMA 1988-026

CNMNC symbol

Symbol

Sl

Locations with GPS information

IDs

GUSID (Global unique identifier short form) SC9xq-4JNUizQxeAxKa2-w
GUID (Global unique identifier) AB712F48-09EE-4835-B343-1780C4A6B6FB
Database ID 3452