Chlorocalcite Mineral Data (original) (raw)
General Chlorocalcite Information
Chemical Formula:
KCaCl3
Composition:
Molecular Weight = 185.53 gm
Potassium 21.07 % K 25.39 % K2O
Calcium 21.60 % Ca 30.22 % CaO
Chlorine 57.33 % Cl 57.33 % Cl
______ ______
100.00 % 100.00 % = TOTAL OXIDE
Empirical Formula:
KCaCl3
Environment:
Volcanic sublimate.
IMA Status:
Valid Species (Pre-IMA) 1872
Locality:
Mt. Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Name Origin:
Named for the composition, which was originally thought to be chloride of calcium alone.
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Chlorocalcite Crystallography
Axial Ratios:
a:b:c =0.7246:1:0.6958
Cell Dimensions:
a = 7.551, b = 10.42, c = 7.251, Z = 4; V = 570.52 Den(Calc)= 2.16
Crystal System:
OrthorhombicSpace Group: Unk
X Ray Diffraction:
By Intensity(I/Io): 2.61(1), 3.14(0.4), 2.11(0.3),3.12(0.3), 3.7(0.3), 5.23(0.3), 2.38(0.2), 3.06(0.2),
Physical Properties of Chlorocalcite
Cleavage:
{001} Perfect, {010} Good, {100} Good
Color:
Colorless, White, Light violet.
Diaphaneity:
Transparent
Habit:
Deliquescent - Crystals absorb water from the air and melt or otherwise deteriorate.
Habit:
Pseudo Cubic - Crystals show a cubic outline.
Habit:
Tastes Bitter - Bitter taste from water soluble Mg or Ca compounds.
Hardness:
2.5-3 - Finger Nail-Calcite
Streak:
white
Optical Properties of Chlorocalcite
Optical Data:
Biaxial (?), b=1.52
Calculated Properties of Chlorocalcite
Electron Density:
Bulk Density (Electron Density)=2.10 gm/cc
note: Specific Gravity of Chlorocalcite =2.16 gm/cc.
Fermion Index:
Fermion Index = 0.0003169067
Boson Index = 0.9996830933
Photoelectric:
PEChlorocalcite = 8.61 barns/electron
U=PEChlorocalcite x relectron= 18.04 barns/cc.
Radioactivity:
GRapi = 294.98 (Gamma Ray American Petroleum Institute Units)
Concentration of Chlorocalcite per GRapi unit = 0.34 (%)
Estimated Radioactivity from Chlorocalcite 
- barely detectable
Chlorocalcite Classification
Dana Class:
11.01.03.01 (11)Halide Complexes; Alumino-fluorides
(11.01)where (A)m B (X)3
(11.01.03)Dana Group
11.01.03.01 Chlorocalcite KCaCl3 Unk Ortho
Strunz Class:
03.AA.40 03 - HALIDES
03.A - Simple Halides, Without H2O
03.AA -M:X = 1:1, 2:3, 3:5, etc.
03.AA.40 Chlorocalcite KCaCl3 Unk Ortho
Other Chlorocalcite Information
References:
NAME( Dana8) PHYS. PROP.(Larousse des Mineraux,1981) OPTIC PROP.(Larousse des Mineraux,1981)
See Also:
Links to other databases for Chlorocalcite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info
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Chlorocalcite
KCaCl3
Dana No: 11.01.03.01 Strunz No: 03.AA.40
Locality:
Notes: