Abhurite Mineral Data

Abhurite Mineral Data +

General Abhurite Information

Chemical Formula:

Sn3O(OH)2Cl2

Composition:

Molecular Weight = 477.05 gm

Tin 74.65 % Sn 84.71 % SnO

Hydrogen 0.42 % H 3.78 % H₂O

Chlorine 14.86 % Cl 14.86 % Cl

- % Cl -3.35 % -O=Cl₂

Oxygen 10.06 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

Sn₃O(OH)₂Cl₂

Environment:

Found on ship-wrecked corroded tin ingots.

IMA Status:

Approved IMA 1983

Locality:

Sharm Abhur, a cove in the Red Sea, Saudi Arabia, Jiddah, Red Sea Link to MinDat.org Location Data.

Name Origin:

Named for its locality.

Synonym:

ICSD 15581

PDF 39-314

Abhurite Image

Images:

Abhurite

Comments: Pearly translucent pale yellow crystalline abhurite.
Location: Shipwreck off Hidra, Vest-Agder, Norway. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Abhurite Crystallography

Axial Ratios:

a:c = 1:4.39508

Cell Dimensions:

a = 10.018, c = 44.03, Z = 21; V = 3,826.85 Den(Calc)= 4.35

Crystal System:

Trigonal - TrapezohedralH-M Symbol (3 2) Space Group: R 32

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

By Intensity(I/I_o): 2.5313(1), 2.8915(0.7), 4.139(0.5),

Crystal Structure:

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Schnering H G , Nesper R , Pelshenke H , Zeitschrift fur Naturforschung , B36 (1981) p.1551-1560, Sn21Cl16(OH)14O6, das sogenannte basische zinn(II)-clorid, Locality: synthetic

Physical Properties of Abhurite

Cleavage:

None

Color:

Colorless.

Density:

4.29 - 4.34, Average = 4.31

Diaphaniety:

Transparent

Fracture:

Hackly - Jagged, torn surfaces, (e.g. fractured metals).

Habit:

Euhedral Crystals - Occurs as well-formed crystals showing good external form.

Hardness:

2 - Gypsum

Luster:

Chatoyant

Streak:

white

Optical Properties of Abhurite

Dichroism (e):

colorless.

Dichroism (w):

colorless.

Gladstone-Dale:

CI meas= -0.409 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= -0.398 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2494,KPDmeas= 0.2514,KC= 0.1784

Optical Data:

Uniaxial (+), w=2.06, e=2.11, bire=0.0500.

Calculated Properties of Abhurite

Electron Density:

r_electron=3.83 gm/cc
note: r_Abhurite=4.35 gm/cc.

Fermion Index

Fermion Index = 0.12412
Boson Index = 0.87588

Photoelectric:

PE_Abhurite= 234.54 barns/electron
U=PE_Abhurite x r_electron= 898.24 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Abhurite is Not Radioactive

Abhurite Classification

Dana Class:

10.5.9.1 (10)Oxyhalides and Hydroxyhalides

(10.5)where Am (O,OH)p Xq

(10.5.9)Dana Group

10.5.9.1 Abhurite Sn3O(OH)2Cl2 R 32 3 2

Strunz Class:

III/D.05-10 III - Halogenides

III/D - Oxi-halogenides with Mg - Mn - Cu - Zn - Sn

III/D.05 - Atacamite series and related compounds

III/D.05-10 Abhurite Sn3O(OH)2Cl2 R 32 3 2

Other Abhurite 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 Abhurite :
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

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

Abhurite

Sn3O(OH)2Cl2
Dana No: 10.5.9.1 Strunz No: III/D.05-10
Locality:

Notes: