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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. |
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
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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 :
Chlorocalcite
KCaCl3
Dana No: 11.01.03.01 Strunz No: 03.AA.40
Locality:
Notes:
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