Hashemite Mineral Data

General Hashemite Information

Chemical Formula:

Ba(Cr,S)O4

Composition:

Molecular Weight = 248.34 gm

Barium 55.30 % Ba 61.74 % BaO

Chromium 15.70 % Cr 30.20 % CrO₃

Sulfur 3.23 % S 8.06 % SO₃

Oxygen 25.77 % O

______ ______

100.00 % 100.00 % = TOTAL OXIDE

Empirical Formula:

BaCr_0.75S_0.25O₄

Environment:

Disseminated in veinlets cutting phosphate carbonate rock, the stratigraphic correlative of the Mottled Zone of the Hatrurim Formation, Israel.

IMA Status:

Approved IMA 1983

Locality:

Stone quarries 60 km southeast of Amman, west-central Jordan. Link to MinDat.org Location Data.

Name Origin:

Named after the Hashemite Kingdom of Jordan, within which the species occurs.

Name Pronunciation:

Hashemite + Pronunciation

Synonym:

ICSD 62181

PDF 35-642

Hashemite Image

Images:

Hashemite

Comments: Scanning electron micrograph of a hashemite crystal with common faces labeled. AmMin v68:1223.
Location: Discovered in specimens from building stone quarries, 60 km southeast of Amman, in west-central Jordan. Scale: Picture Size 100 µm.
© American Mineralogist

Hashemite Crystallography

Axial Ratios:

a:b:c =1.6467:1:1.3263

Cell Dimensions:

a = 9.1028, b = 5.5276, c = 7.3314, Z = 4; V = 368.89 Den(Calc)= 4.47

Crystal System:

Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

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

By Intensity(I/I_o): 3.516(1), 3.171(0.8), 3.669(0.6),

Physical Properties of Hashemite

Cleavage:

{???} Good

Color:

Brown, Greenish brown, Yellow brown, Light yellow brown, Dark greenish brow.

Density:

4.59

Diaphaneity:

Transparent to Translucent

Hardness:

3.5 - Copper Penny

Luster:

Adamantine

Streak:

brownish white

Optical Properties of Hashemite

Gladstone-Dale:

CI meas= -0.079 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.108 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2154,KPDmeas= 0.2098,KC= 0.1945
Ncalc = 1.87 - 1.89

Optical Data:

Biaxial (+), a=1.952, b=1.96, g=1.977, bire=0.0250, 2V(Calc)=70, 2V(Meas)=35-57.

Calculated Properties of Hashemite

Electron Density:

Bulk Density (Electron Density)=4.07 gm/cc
note: Specific Gravity of Hashemite =4.59 gm/cc.

Fermion Index:

Fermion Index = 0.11
Boson Index = 0.89

Photoelectric:

PE_Hashemite= 254.29 barns/electron
U=PE_Hashemite x rElectron Density=1,034.00 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hashemite is Not Radioactive

Hashemite Classification

Dana Class:

35.03.03.01 (35)Anhydrous Chromates

(35.03)where A+ XO4

(35.03.03)Dana Group

35.03.03.01 Hashemite Ba(Cr,S)O4 P nma 2/m 2/m 2/m

Strunz Class:

07.FA.15 07 - SULFATES (SELENATES, TELLURATES)

07.F - Chromates

07.FA -Without additional anions

07.FA.15 Hashemite Ba(Cr,S)O4 P nma 2/m 2/m 2/m

Other Hashemite Information

References:

NAME( AntBidBlaNic4) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990)

See Also:

Links to other databases for Hashemite :
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
15 - WWW-MINCRYST

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

Hashemite

Ba(Cr,S)O4
Dana No: 35.03.03.01 Strunz No: 07.FA.15
Locality:

Notes:

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