Mineralogy Database

Terlinguacreekite Mineral Data

Search Webmineral :

General Terlinguacreekite Information

Help on Chemical  Formula: Chemical Formula: Hg++3O2Cl2
Help on Composition: Composition: Molecular Weight = 709.92 gm
   Mercury   84.77 %  Hg   91.53 % HgO
   Bromine    1.24 %  Br    1.24 % Br
               -   %   Br   -0.12 % -O=Br2   
   Chlorine   9.49 %  Cl    9.49 % Cl
               -   %   Cl   -2.14 % -O=Cl2   
   Oxygen     4.51 %  O
            ______        ______ 
            100.00 %       99.99 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Hg3O2Cl1.9Br0.11
Help on Environment: Environment: Oxyhalide with Hg
Help on IMA Status: IMA Status: Approved IMA 2004 (Dana # Added)
Help on Locality: Locality: Perry Pit, Mariposa mine, Terlingua mining district, Brewster County, Texas, USA Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Terlinguacreekite + Pronunciation Say TERLINGUACREEKITE
Help on Synonym: Synonym: IMA2004-018

Terlinguacreekite Image

Click Here for Larger   Image in a New Browser Window Images:
Click Here for Larger   Image


Comments: Reddish brown crystalline aggregates of eglestonite? or montroydite? in calcite matrix covered with yellow crusts of terlinguacreekite.
Location: Mariposa Mine, Terlingua, Brewster County, Texas, USA. Scale: See Image.
© Jeff Weissman / Photographic Guide to Mineral Species

Terlinguacreekite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.2639:1:0.2167
Help on Cell Dimensions: Cell Dimensions: a = 6.737, b = 25.528, c = 5.533, Z = 8; V = 951.58 Den(Calc)= 9.91
Help on Crystal System: Crystal System: Orthorhombic Space Group: Imam, Imcm, Ima2, or I2cm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.518(1)(091,251), 4.063(0.8)(121 ), 2.983(0.6)(240 ),2.765(0.5)(002 ), 3.023(0.5)(161 ), 3.201(0.5)(080 ), 2.026(0.3)(242 ), 5.413(0.3)(011 ), 2.858(0.3)(211 ),

Physical Properties of Terlinguacreekite

Help on Cleavage: Cleavage: None
Help on Color: Color: Dark orange, Reddish orange.
Help on Diaphaneity: Diaphaneity: Transparent
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Encrustations - Forms crust-like aggregates on matrix.
Help on Hardness: Hardness: 2-3 - Gypsum-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: yellow

Optical Properties of Terlinguacreekite

Help on Optical Data: Optical Data: NCalc= 2.44 - from Gladstone-Dale relationship (KC = 0.1452) where Ncalc=Dcalc*KC+1
Help on RL Anisotrophism: RL Anisotrophism: Shown, with yellowish orange internal reflections.
Help on RL Bireflectance: RL Bireflectance: Weakly.
Help on RL Color: RL Color: Bluish gray.
Help on RL Pleochroism: RL Pleochroism: None.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Terlinguacreekite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 470 nm   15.40   16.50 
 546 nm   14.50   15.60 
 589 nm   14.30   15.40 
 650 nm   14.20   15.20 
Calculated Relative Intensity Colors of Terlinguacreekite in Air
   0%   70% 100% 140% 210% 280% 350% 420% 490% 560% 620%

Calculated Properties of Terlinguacreekite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=8.16 gm/cc
note: Specific Gravity of Terlinguacreekite =9.91 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.25
Boson Index = 0.75
Help on Photoelectric: Photoelectric: PETerlinguacreekite =1,459.66 barns/electron
U=PETerlinguacreekite x rElectron Density=11905.68 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Terlinguacreekite is Not Radioactive

Terlinguacreekite Classification

Help on  Dana Class: Dana Class: (10)Oxyhalides and Hydroxyhalides
  (10.03)where (A)3 (O,OH)2 Xq
  (10.03.07)Dana Group Terlinguacreekite! Hg3O2Cl2 Imam, Imcm, Ima2, or I2cm Ortho
Help on  Strunz Class: Strunz Class: 03.DD.55 03 - HALIDES
  03.D - Oxyhalides, Hydroxyhalides and Related Double Halides
  03.DD -With Hg
03.DD.55 Terlinguacreekite! Hg3O2Cl2 Imam, Imcm, Ima2, or I2cm Ortho

Other Terlinguacreekite Information

Help on References: References: NAME( AmMin, v91, p219) PHYS. PROP.(AmMin, v91, p219) OPTIC PROP.(AmMin, v91, p219)
Help on See Also: See Also: Links to other databases for Terlinguacreekite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - GeoScienceWorld
4 - Google Images
5 - Google Scholar
6 - MinDAT
7 - Mineralienatlas (Deutsch)
8 - Online Mineral Museum
9 - QUT Mineral Atlas
10 - Ruff.Info

Search for Terlinguacreekite using:

Web webmineral.com
[AOL] [Bing] [Dog Pile] [GeoScienceWorld] [HotBot] [Ixquick] [Lycos] [MAMMA] [Scirus] [Teoma] [WebCrawler] [Wikipedia] [YAHOO]

Visit our Advertisers for Terlinguacreekite :

Ask about Terlinguacreekite 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 Espaņol

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


Dana No: Strunz No: 03.DD.55





Dakota Matrix
Excalibur Minerals
Exceptional Minerals
Hudson Insitute
John Betts Fine Minerals
Mc Dougall Minerals
Mineral News
Rock and Mineral Shows
Weinrich Minerals, Inc.