Sinjarite Mineral Data

Sinjarite Mineral Data +

We specialise in top quality, fine minerals from Morocco, Namibia,
South Africa, Pakistan, Democratic Republic of Congo (ZaÃƒï¿½Ã‚Â¯re) and China
Worldwide Fine Minerals by B & C GOBIN

General Sinjarite Information

Chemical Formula:

CaCl2·2(H2O)

Composition:

Molecular Weight = 147.01 gm

Calcium 27.26 % Ca 38.14 % CaO

Hydrogen 2.74 % H 24.51 % H₂O

Chlorine 48.23 % Cl 48.23 % Cl

- % Cl -10.88 % -O=Cl₂

Oxygen 21.77 % O

______ ______

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.

Synonym:

ICSD 960

PDF 1-989

Search for Sinjarite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Sinjarite Crystallography

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:

TetragonalSpace Group: Unk.

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 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),

Physical Properties of Sinjarite

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

Optical Properties of Sinjarite

Gladstone-Dale:

CI meas= 0.055 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.069 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.3375,KPDmeas= 0.2983,KC= 0.3158

Optical Data:

Uniaxial (?), a=1.54, b=1.54, bire=0.0000.

Calculated Properties of Sinjarite

Electron Density:

r_electron=1.82 gm/cc
note: r_Sinjarite=1.81 gm/cc.

Fermion Index

Fermion Index = 0.00047
Boson Index = 0.99953

Photoelectric:

PE_Sinjarite= 6.45 barns/electron
U=PE_Sinjarite x r_electron= 11.75 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Sinjarite is Not Radioactive

Sinjarite Classification

Dana Class:

9.2.5.1 (9)Anhydrous and Hydrated Halides

(9.2)where A (X)2

(9.2.5)Dana Group

9.2.5.1 Sinjarite CaCl2·2(H2O) Unk. Tetra

Strunz Class:

III/A.12-70 III - Halogenides

III/A - Simple Halogenides, with water Metal : Halogen = 1 : 1 to 1 : 3

III/A.12 - Hydrohalite - Antarcticite series

III/A.12-10 Hydrohalite NaCl·2(H2O) P 2₁/c 2/m

III/A.12-20 Eriochalcite CuCl2·2(H2O) Pbmn 2/m 2/m 2/m

III/A.12-30 Bischofite MgCl2·6(H2O) C 2/m 2/m

III/A.12-40 Nickelbischofite NiCl2·6(H2O) C 2/m 2/m

III/A.12-50 Rokuhnite FeCl2·(H2O) C 2/m 2/m

III/A.12-70 Sinjarite CaCl2·2(H2O) Unk. Tetra

III/A.12-80 Antarcticite CaCl2·6(H2O) P 3₂1 3 2

Other Sinjarite Information

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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

Search for Sinjarite using:

[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Sinjarite :

AA Mineral Specimens

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

MineralsWeb Fine Minerals

T G Fine Minerals

Wrights Rock Shop

Translate Sinjarite Mineral Data :

Ask about Sinjarite here :
Ask-A-Mineralogist from the Mineralogical Society of America
Mindat.org's Discussion Groups
Original Rockhounds Discussion Group
Rockhounds Discussion Group on Yahoo Groups
Mineral Discussion Forum from Fabre Minerals - also available in Español

Print or Cut-and-Paste your Sinjarite Specimen Label here :

Sinjarite

CaCl2·2(H2O)
Dana No: 9.2.5.1 Strunz No: III/A.12-70
Locality:

Notes: