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Sinjarite Mineral Data
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General Sinjarite Information
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 Chemical Formula: |
CaCl2•2(H2O) |
| Composition: |
Molecular Weight = 147.01 gm |
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Calcium 27.26 % Ca 38.14 % CaO |
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Hydrogen 2.74 % H 24.51 % H2O |
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Chlorine 48.23 % Cl 48.23 % Cl |
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- % Cl -10.88 % -O=Cl2
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Oxygen 21.77 % O |
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______ ______ |
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100.00 % 100.00 % = TOTAL OXIDE |
| Empirical Formula: |
CaCl2•2(H2O) |
| Environment: |
Found in detritus in a wadi cutting across the Sinjar anticline. Very deliquescent. |
| IMA Status: |
Approved IMA 1980 |
| Locality: |
Sinjar, W of Mosul, Iraq. Link to MinDat.org Location Data. |
| Name Origin: |
Named for the locality. |
| Name Pronunciation: |
Sinjarite + Pronunciation  |
| Synonym: |
Hydrophilite - antarcticite or sinjarite |
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ICSD 960 |
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PDF 1-989 |
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Sinjarite Image |
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Images:
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Sinjarite Crystallography
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| Axial Ratios: |
a:c = 1:0.81276 |
| Cell Dimensions: |
a = 7.21, c = 5.86, Z = 2; V = 304.63 Den(Calc)= 1.60 |
| Crystal System: |
Tetragonal Space Group: Unk. |
| X Ray Diffraction: |
By Intensity(I/Io): 2.83(1), 3.06(0.7), 2.12(0.6),4.35(0.5), 6.1(0.4), 2.16(0.2), 2.35(0.2), 2.52(0.2), |
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Physical Properties of Sinjarite
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| Cleavage: |
{???} Good, {???} Good |
| Color: |
Light pink. |
| Density: |
1.66 - 1.96, Average = 1.81 |
| Habit: |
Deliquescent - Crystals absorb water from the air and melt or otherwise deteriorate. |
| Habit: |
Massive - Granular - Common texture observed in granite and other igneous rock. |
| Habit: |
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline). |
| Hardness: |
1.5 - Between Talc and Gypsum |
| Luster: |
Vitreous - Resinous |
| Streak: |
white |
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Optical Properties of Sinjarite
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| Optical Data: |
Uniaxial (?), a=1.54, b=1.54, bire=0.0000. |
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Calculated Properties of Sinjarite
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| Electron Density: |
Bulk Density (Electron Density)=1.61 gm/cc
note: Specific Gravity of Sinjarite =1.60 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0004766179
Boson Index = 0.9995233821 |
| Photoelectric: |
PESinjarite = 6.45 barns/electron
U=PESinjarite x rElectron Density= 10.38 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Sinjarite is Not Radioactive |
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Sinjarite Classification
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| Dana Class: |
09.02.05.01 (09)Anhydrous and Hydrated Halides |
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(09.02)where A (X)2 |
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(09.02.05)Dana Group |
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09.02.05.01 Sinjarite CaCl2•2(H2O) Unk. Tetra |
| Strunz Class: |
03.BB.25 03 - HALIDES |
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03.B - Simple Halides, with H2O |
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03.BB -M:X = 1:2 |
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03.BB.25 Sinjarite CaCl2•2(H2O) Unk. Tetra |
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Other Sinjarite Information
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| References: |
NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Sinjarite :
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 Sinjarite Specimen Label here :
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Sinjarite
CaCl2•2(H2O)
Dana No: 09.02.05.01 Strunz No: 03.BB.25
Locality:
Notes:
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