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Calclacite

Collectors Summary

Color weiß
Streak color weiß
Solubility +++ H2O
Crystal System monoklin, P21/a

Chemism

Chemical formula

CaCl2·Ca(C2H3O2)2·10 H2O

Chemical composition

Calcium, Chlor, Kohlenstoff, Sauerstoff, Wasserstoff

Unit weight: 287.167046 u; Number of atoms in the formula: 21

Info

Empirical formula:

CaCl2·Ca(C2H3O2)2·10H2O

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Hydrogen

H

2.81

8

38.10

1.0079470

8.0635760

Carbon

C

16.73

4

19.05

12.0107800

48.0431200

Oxygen

O

27.86

5

23.81

15.9994300

79.9971500

Chlorine

Cl

24.69

2

9.52

35.4532000

70.9064000

Calcium

Ca

27.91

2

9.52

40.0784000

80.1568000

Strunz 9th edition incl. updates

10.AA.25

10: Organische Verbindungen
A: Salze organischer Säuren
A: [Acetate]
25:Calclacit-Gruppe

Lapis Classification

IX/A.02-020

IX: ORGANISCHE VERBINDUNGEN
A: Salze organischer Säuren
2: Andere organische Salze, u.a. Mellate, Citrate und Acetate

Classification by Hölzel

A.AB.230

A: ORGANIC COMPLEXES
A: Carbonacids and their Salts
B: Other Carbonacids
2: Acetates

Dana 8th edition

50.02.04.01

50: Organic Minerals
02: Salts of Organic Acids (Mellitates, Citrates, Cyanates, and Acetates)

IMA status

Erstbeschreibung vor CNMNC-Gründung (1959), als Mineral meist anerkannt

Mineral status

anerkanntes Mineral

Optical Properties

Color

weiß

Streak color

weiß

max. Birefringence

0.047

Birefringence chart\! Calclacite title=Birefringence chart Calclacite

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

1.468

RI value β

1.484

RI value γ / ε

1.515

Ri mean

1.489

2V angle

Biaxial (+) 80°

Crystallography

Crystal System

monoklin

Class (H-M)

2/m

Space Group number

14

Space Group

P21/a

Cell parameters a (Å)

10.41

Cell parameters b (Å)

13.72

Cell parameters c (Å)

6.82

Cell parameters a/b or c/a

0.759

Cell parameters c/b

0.497

Cell parameters α

90°

Cell parameters β

99.10

Cell parameters γ

90°

Z

4

Volume (ų)

961.808

X-Ray Powder Diffraction

8.23(100),
6.88(40),
6.07(20),
4.20(40),
3.36(20),
3.25(30),
3.01(20),
2.44(20)

XRD chart Calclacite

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

Crystal Structure 3D

Open larger view

Physical Properties

Density (g/cm³)

1.55 (berechnet)

1.983 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

Preface

Name from

der Zusammensetzung: Calcium-Chlorid-Acetat

Author (Name, Year)

Van Tassel, 1945

References

Handbook of Mineralogy (Anthony et al.), 5 (2003), 102

Other languages

German

Calclacit

Spanish

Calclacita

English

Calclacite

French

Calclacite

CNMNC symbol

Symbol

Calc

IDs

GUSID (Global unique identifier short form) wrmfnNNiw0qSiCvXFmkxDg
GUID (Global unique identifier) 9C9FB9C2-62D3-4AC3-9288-2BD71669310E
Database ID 576