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Chlorocalcite

Collectors Summary

Color farblos, weiß, blassviolett
Streak color weiß
Hardness (Mohs) 2.50 - 3.00
Solubility +++ H2O
Crystal System orthorhombisch, Pnma

Chemism

Chemical formula

KCaCl3

Chemical composition

Calcium, Chlor, Kalium

Unit weight: 185.53631 u; Number of atoms in the formula: 5

Info

Empirical formula:

KCaCl3

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Chlorine

Cl

57.33

3

60.00

35.4532000

106.3596000

Potassium

K

21.07

1

20.00

39.0983100

39.0983100

Calcium

Ca

21.60

1

20.00

40.0784000

40.0784000

Strunz 9th edition incl. updates

3.AA.40

3: Halide (Fluoride, Chloride, Bromide, Iodide)
A: Einfache Halogenide ohne H2O
A: M:X = 1:1 und 2:3
40:Chlorocalcit-Gruppe

Lapis Classification

III/A.09-020

III: HALOGENIDE (Fluoride, Chloride, Bromide, Jodide)
A: Einfache Halogenide
9: Wasserfrei, Metall : Halogen = 1:2, 1:3

Classification by Hölzel

3.DA.150

3: HALIDES
D: Complex Halides
A: Without H2O and without Al

Dana 8th edition

11.01.03.01

11: Halide Complexes; Alumino-fluorides
01: Halide Complexes; Alumino-fluorides where (A)m B (X)3

IMA status

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

Mineral status

anerkanntes Mineral

IMA Classification

IMA Classification

Perovskite supergroup  ⇒ Stoichiometric perovskites  ⇒ Chlorocalcite subgroup

Optical Properties

Color

farblos, weiß, blassviolett

Streak color

weiß

max. Birefringence

nicht wahrnehmbar

RI value α / ω / n

1.57

Ri mean

1.570

2V angle

Biaxial (-) nd

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell parameters a (Å)

7.551

Cell parameters b (Å)

10.442

Cell parameters c (Å)

7.251

Cell parameters a/b or c/a

0.723

Cell parameters c/b

0.694

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volume (ų)

571.724

X-Ray Powder Diffraction

5.227(20),
3.697(30),
3.137(30),
3.119(30),
3.058(20),
2.612(100),
2.377(20),
2.107(20)

XRD chart Chlorocalcite

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

Crystals 3D

Open larger view

Physical Properties

Hardness (Mohs)

2.50 - 3.00

VHN (Hardness Vickers)

68 (ungefähre Angabe abgeleitet aus der Mohshärte)

Density (g/cm³)

2.155 (berechnet)

2.155 ( ρ calc. Mineralienatlas )

Instability

+++ H2O

Preface

Author (Name, Year)

Scacchi, 1872

References

Handbook of Mineralogy (Anthony et al.), 3 (1997), 120

IMA group assignments

Other languages

German

Chlorocalcit

French

Chlorocalcite

English

Chlorocalcite

Spanish

Clorocalcita

Russian

Хлорокальцит

Alternative Name

German

Baeumlerit

Spanish

Baeumlerita

Baeumlerite

Bumlerite

German

Bäumlerit

Spanish

Bäumlerita

Italian

Bäumlerita

Bäumlerite

Spanish

Chlorocalcita

German

Clorocalcit

Clorocalcite

Italian

Idroclorato di calce in piccola dose

CNMNC symbol

Symbol

Ccal

Locations with GPS information

IDs

GUSID (Global unique identifier short form) qdCJmF1s-EOLOU8zh8kwbg
GUID (Global unique identifier) 9889D0A9-6C5D-43F8-8B39-4F3387C9306E
Database ID 731