Mosesite Mineral Data

Mosesite Mineral Data +

General Mosesite Information

Chemical Formula:

Hg2N(Cl,SO4,MoO4,CO3)·(H2O)

Composition:

Molecular Weight = 501.74 gm

Mercury 79.96 % Hg 83.15 % Hg₂O

Molybdenum 1.91 % Mo 2.87 % MoO₃

Hydrogen 0.40 % H 3.59 % H₂O

Carbon 0.24 % C 0.88 % CO₂

Sulfur 1.92 % S 4.79 % SO₃

Nitrogen 2.79 % N 7.57 % N₂O₃

Chlorine 3.53 % Cl 3.53 % Cl

- % Cl -0.80 % -O=Cl₂

Oxygen 9.25 % O

______ ______

100.00 % 105.58 % = TOTAL OXIDE

Empirical Formula:

Hg₂NCl_0.5(SO₄)_0.3(MoO₄)_0.1(CO₃)_0.1·(H₂O)

Environment:

Hg2N+ goups associated with exchangable anions and water molecules in structure.

IMA Status:

Valid Species (Pre-IMA) 1910

Locality:

Terlingua, Brewster County,Texas, USA. Link to MinDat.org Location Data.

Name Origin:

Named for Alfred J. Moses (1859-1920), professor of mineralogy, Columbia University who studies the Hg-bearing minerals at Terlingua, Texas, USA.

Synonym:

ICSD 45151

Millon's base

PDF 39-388

Mosesite Image

Images:

Mosesite

Comments: Yellow, hoppered crystal of mosesite on matrix.
Location: Terllingua, Brewster County, Texas, USA. Scale: Not Given.
© Lou Perloff / Photo Atlas of Minerals

Mosesite Crystallography

Cell Dimensions:

a = 9.524, Z = 8; V = 863.89 Den(Calc)= 7.71

Crystal System:

Isometric - HextetrahedralH-M Symbol (4 3m) Space Group: F43m

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

By Intensity(I/I_o): 2.74(1), 2.86(0.8), 1.68(0.7),

Physical Properties of Mosesite

Cleavage:

[111] Indistinct

Color:

Yellow, Light green, Olive green.

Density:

7.72

Diaphaniety:

Translucent to subtranslucent

Fracture:

Brittle - Uneven - Very brittle fracture producing uneven fragments.

Habit:

Cubic Crystals - Occurs as cubic shaped crystals.

Hardness:

3-4 - Calcite-Fluorite

Luminescence:

Non-fluorescent.

Luster:

Adamantine

Magnetism:

Nonmagnetic

Streak:

light yellow

Optical Properties of Mosesite

Gladstone-Dale:

CI meas= 0.257 (Poor) - where the CI = (1-KPDmeas/KC)
CI calc= 0.256 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1375,KPDmeas= 0.1373,KC= 0.1848

Optical Data:

Isotropic, n=2.06.

Calculated Properties of Mosesite

Electron Density:

r_electron=6.46 gm/cc
note: r_Mosesite=7.71 gm/cc.

Fermion Index

Fermion Index = 0.27436
Boson Index = 0.72564

Photoelectric:

PE_Mosesite=1,353.97 barns/electron
U=PE_Mosesite x r_electron=8,750.90 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Mosesite is Not Radioactive

Mosesite Classification

Dana Class:

29.3.8.1 (29)Hydrated Acid and Sulfates

(29.3)where (A+)2 B (XO4)2 · x(H2O)

(29.3.8)Dana Group

29.3.8.1 Mosesite Hg2N(Cl,SO4,MoO4,CO3)·(H2O) F43m 4 3m

Strunz Class:

III/D.06-50 III - Halogenides

III/D - Oxi-halogenides with mercury

III/D.06 - Terlinguaite - Comancheite

III/D.06-10 Terlinguaite HgHgClO C 2/c 2/m

III/D.06-11 Aurivilliusite! HgHgOI C 2/m 2/m

III/D.06-12 Hanawaltite Hg6Hg[Cl,(OH)]2O3 Pbma 2/m 2/m 2/m

III/D.06-13 Tedhadleyite! HgHg10O4I2(Cl1.16Br0.84)2 A1 1

III/D.06-20 Poyarkovite Hg3ClO C 2/c 2/m

III/D.06-30 Kadyrelite Hg4(Br,Cl)2O I a3d 4/m 3 2/m

III/D.06-40 Eglestonite Hg6Cl3O(OH)(?) I a3d 4/m 3 2/m

III/D.06-45 Vasilyevite! (Hg2)10O6I3Cl(CO3) P1 1

III/D.06-50 Mosesite Hg2N(Cl,SO4,MoO4,CO3)·(H2O) F43m 4 3m

III/D.06-60 Gianellaite Hg4(SO4)N2 F43m 4 3m

III/D.06-70 Kleinite Hg2N(Cl,SO4)·n(H2O) C63/mmc 6/m 2/m 2/m

III/D.06-80 Pinchite Hg5O4Cl2 I bam 2/m 2/m 2/m

III/D.06-90 Comancheite Hg13(Cl,Br)8O9 Pnnm,Pnn2 Ortho

Other Mosesite Information

References:

NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana)

See Also:

Links to other databases for Mosesite :
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 Mosesite Specimen Label here :

Mosesite

Hg2N(Cl,SO4,MoO4,CO3)·(H2O)
Dana No: 29.3.8.1 Strunz No: III/D.06-50
Locality:

Notes: