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Chlorocalcite Mineral Data
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General Chlorocalcite Information
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 Chemical Formula: |
KCaCl3 |
| Composition: |
Molecular Weight = 185.53 gm |
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Potassium 21.07 % K 25.39 % K2O |
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Calcium 21.60 % Ca 30.22 % CaO |
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Chlorine 57.33 % Cl 57.33 % Cl |
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- %
Cl -12.94 % -O=Cl2 |
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______ ______ |
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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
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| 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: |
Orthorhombic Space 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), |
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Physical Properties of Chlorocalcite
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| 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 |
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Optical Properties of Chlorocalcite
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| Optical Data: |
Biaxial (?), b=1.52 |
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Calculated Properties of Chlorocalcite
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| Electron Density: |
Bulk Density (Electron Density)=2.10 gm/cc
note: Specific Gravity of Chlorocalcite =2.16 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0003169067
Boson Index = 0.9996830933 |
| Photoelectric: |
PEChlorocalcite = 8.61 barns/electron
U=PEChlorocalcite x relectron= 18.04 barns/cc.
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| Radioactivity: |
GRapi = 294.98 (Gamma Ray American Petroleum Institute Units)
Concentration of Chlorocalcite per GRapi unit = 0.34 (%)
Estimated Radioactivity from Chlorocalcite  - barely detectable
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Chlorocalcite Classification
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| Dana Class: |
11.01.03.01 (11)Halide Complexes; Alumino-fluorides |
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(11.01)where (A)m B (X)3 |
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(11.01.03)Dana Group |
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11.01.03.01 Chlorocalcite KCaCl3 Unk Ortho |
| Strunz Class: |
03.AA.40 03 - HALIDES |
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03.A - Simple Halides, Without H2O |
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03.AA -M:X = 1:1, 2:3, 3:5, etc. |
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03.AA.40 Chlorocalcite KCaCl3 Unk Ortho |
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Other Chlorocalcite Information
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| 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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Print or Cut-and-Paste your Chlorocalcite Specimen Label here :
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Chlorocalcite
KCaCl3
Dana No: 11.01.03.01 Strunz No: 03.AA.40
Locality:
Notes:
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