Artsmithite Mineral Data

Artsmithite Mineral Data
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General Artsmithite Information

Help on Chemical Formula: Chemical Formula: Hg+4Al(PO4)1.74(OH)1.78
Help on Composition: Composition: Molecular Weight = 1,024.86 gm
   Aluminum     2.63 %  Al    4.97 % Al2O3
   Mercury     78.29 %  Hg   81.41 % Hg2O
   Phosphorus   5.26 %  P    12.05 % P2O5
   Hydrogen     0.18 %  H     1.56 % H2O
   Oxygen      13.64 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Hg4Al(PO4)1.74(OH)1.78
Help on Environment: Environment: Secondary mineral derived from cinnabar in the Jackfork Sandstone member of the Stanley Formation (Pennsylvanian Age).
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Funderburk Prospect, Pike County, Arkansas, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Arthur (Art) E. Smith (1935-), American petroleum geologist from Houston, Texas who collected the original sample.
Help on Synonym: Synonym: IMA2002-039
 

Artsmithite Image

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Artsmithite

Comments: White to tan, radial, acicular crystals of artsmithite on matrix.
Location: Funderburk Prospect, Pike County, Arkansas, USA. Scale: Picture size 0.7 cm.
© Jeff Weissman / Photographic Guide to Mineral Species
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Artsmithite

Comments: White or faint green platy micro crystals of artsmithite on matrix.
Location: Funderburk prospect, Pike County, Arkansas, USA. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Artsmithite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.8759:1:0.773
Help on Cell Dimensions: Cell Dimensions: a = 17.022, b = 9.074, c = 7.015, Z = 4; beta = 101.2° V = 1,062.88 Den(Calc)= 6.40
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 8.326(1)(200), 2.979(0.8)(202), 2.784(0.8)(600),2.66(0.75)(330), 2.952(0.5)(402), 4.739(0.5)(210),
 

Physical Properties of Artsmithite

Help on Cleavage: Cleavage: None
Help on Color: Color: White, Colorless.
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Fracture: Fracture: Irregular - Flat surfaces (not cleavage) fractured in an irregular pattern.
Help on Habit: Habit: Acicular - Occurs as needle-like crystals.
Help on Habit: Habit: Fibrous - Crystals made up of fibers.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: creamy white
 

Optical Properties of Artsmithite

Help on Optical Data: Optical Data: Biaxial (+), 2V(Meas)=60. Dispersion r < v distinct.
  NCalc= 1.99 - from Gladstone-Dale relationship (KC = 0.1549) where Ncalc=Dcalc*KC+1
 

Calculated Properties of Artsmithite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.38 gm/cc
note: Specific Gravity of Artsmithite =6.40 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.23
Boson Index = 0.77
Help on Photoelectric: Photoelectric: PEArtsmithite =1,318.48 barns/electron
U=PEArtsmithite x rElectron Density=7,094.02 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Artsmithite is Not Radioactive
 

Artsmithite Classification
Help on Dana Class: Dana Class: 41.05.20.01 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.05)where (A B)2 (XO4) Zq
  (41.05.20)Dana Group
 
41.05.20.01 Artsmithite! Hg4Al(PO4)1.74(OH)1.78 C 2/c 2/m
Help on Strunz Class: Strunz Class: 08.BO.40 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BO -With only large cations, (OH, etc.):RO4 ³ 1:1
 
08.BO.40 Artsmithite! Hg4Al(PO4)1.74(OH)1.78 C 2/c 2/m
 

Other Artsmithite Information
Help on References: References: NAME( CanMin, v 41, p 723) PHYS. PROP.(CanMin, v 41, p 723) OPTIC PROP.(CanMin, v 41, p 723)
Help on See Also: See Also: Links to other databases for Artsmithite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

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

Artsmithite

Hg+4Al(PO4)1.74(OH)1.78
Dana No: 41.05.20.01 Strunz No: 08.BO.40
Locality:

 

Notes: