Pararealgar Mineral Data

Pararealgar Mineral Data
Search Webmineral :
   
Home Crystal jmol jPOWD Chem X Ray Dana Strunz Properties A to Z Images       News Help About


Desert Winds Gems and Minerals
[Mineral Galleries] [About Me] [e-Bay Items] [Latest News] [How to Order]
A Diverse Selection of Beautifully Unique Gem & Mineral Specimens
Desert Winds Gems & Minerals • For All Levels of Collectors Worldwide
Aesthetic & Rare Mineral Specimens • Regular Updates


General Pararealgar Information

Help on Chemical Formula: Chemical Formula: AsS
Help on Composition: Composition: Molecular Weight = 106.99 gm
   Arsenic  70.03 %  As
   Sulfur   29.97 %  S
           ______ 
           100.00 % 
Help on Empirical Formula: Empirical Formula: AsS
Help on Environment: Environment: As an alteration product of reagar in stibnite-bearing quartz veins.
Help on IMA Status: IMA Status: Approved IMA 1980
Help on Locality: Locality: Mount Washington copper deposit, Vancouver Island, British Columbia, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for its chemical identity with realgar.
Help on Name Pronunciation: Name Pronunciation: Pararealgar + Pronunciation Say PARAREALGAR
Help on Synonym: Synonym: ICSD 80124
  IMA1980-034
  PDF 33-127
 

Pararealgar Image

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

Pararealgar

Comments: Orange pararealgar on matrix.
Location: Hänichen, Dresden, Saxony, Germany. Scale: Picture size 5 mm.
© Thomas Witzke / Abraxas-Verlag

Pararealgar Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =1.0263:1:0.8805
Help on Cell Dimensions: Cell Dimensions: a = 9.909, b = 9.655, c = 8.502, Z = 16; beta = 97.29° V = 806.82 Den(Calc)= 3.52
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: P 21/c
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 5.14(1), 5.56(0.91), 3.75(0.78),
Click Here for Large Pararealgar Structure Window Crystal Structure:

Mouse
drag1 - LMB Manipulate Structure
drag2 - RMB Resize/Rotate
Keyboard
S - Stereo Pair on/off
H - Help Screen
I - Data Info
A - Atoms On/Off
P - Polyhedra On/Off
B - Bonds On/Off
 Help on Above


Bonazzi P , Menchetti S , Pratesi G , American Mineralogist , 80 (1995) p.400-403, The crystal structure of pararealgar

 

Physical Properties of Pararealgar

Help on Cleavage: Cleavage: None
Help on Color: Color: Light yellow, Orange brown, Orange.
Help on Density: Density: 3.52
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Powdery - Forms a loose, poorly-coherent pulverulent mass.
Help on Hardness: Hardness: 1-1.5 - Talc or a little harder
Help on Luster: Luster: Vitreous - Resinous
Help on Streak: Streak: light yellow
 

Optical Properties of Pararealgar

Help on Optical Data: Optical Data: Biaxial (?), b=2.02
Help on Pleochroism (x): Pleochroism (x): orange yellow.
Help on Pleochroism (y): Pleochroism (y): bright yellow.
Help on Pleochroism (z): Pleochroism (z): orange red.
 

Calculated Properties of Pararealgar

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Pararealgar =3.52 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0022478773
Boson Index = 0.9977521227
Help on Photoelectric: Photoelectric: PEPararealgar = 51.07 barns/electron
U=PEPararealgar x rElectron Density= 164.67 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pararealgar is Not Radioactive
 

Pararealgar Classification
Help on Dana Class: Dana Class: 02.08.22.02 (02)Sulfides - Including Selenides and Tellurides
  (02.08)where Am Bn Xp, with (m+n):p=1:1
  (02.08.22)Realgar Series
 
02.08.22.01 Realgar AsS P 21/n 2/m
 
02.08.22.02 Pararealgar AsS P 21/c 2/m
 
02.08.22.03 Uzonite As4S5 P 21/m 2/m
 
02.08.22.04 Alacranite As8S9 P 2/c 2/m
Help on Strunz Class: Strunz Class: 02.FA.15b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.F - Sulfides of Arsenic, Alkalies; Sulfides with Halide, Oxide, Hydroxide, H2O
  02.FA -With As, (Sb), S
 
02.FA.15b Pararealgar AsS P 21/c 2/m
 

Other Pararealgar Information
Help on References: References: NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Pararealgar :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - Google Images
6 - Google Scholar
7 - Handbook of Mineralogy (MinSocAm)
8 - Handbook of Mineralogy (UofA)
9 - MinDAT
10 - MinMax(Deutsch)
11 - MinMax(English)
12 - Mineralienatlas (Deutsch)
13 - QUT Mineral Atlas
14 - Ruff.Info
15 - WWW-MINCRYST

Search for Pararealgar using:

Google
 
Web webmineral.com
[ALTAVISTA] [AOL] [All-The-Web] [HotBot] [Ixquick] [MAMMA] [MSN.COM] [Netscape] [Scirus] [Teoma] [Wikipedia] [YAHOO]

Visit our Advertisers for Pararealgar :

AA Mineral Specimens

B & L Fine Minerals

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Excalibur Minerals

Exceptional Minerals

Fabre Minerals

Heliodor

John Betts Fine Minerals

Mason's Minerals

Mineral News

Mineral of the Month Club

Wrights Rock Shop

Translate Pararealgar Mineral Data :

Ask about Pararealgar 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 Pararealgar Specimen Label here :

Pararealgar

AsS
Dana No: 02.08.22.02 Strunz No: 02.FA.15b
Locality:

 

Notes: