Penikisite Mineral Data

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



[Newest Minerals] [Equipment] [Analytical Services] [About Us] [Mineral Gallery] [eBay Store]
See Also: [Diamond Crystals] [Mineral News] [Hudson Institute] [Minerals on CDROM]
Rare Minerals, Meteorites, Equipment and Analytical Services
Excalibur Mineral Company, World leaders in the supply of rare species
Serving the scientific and collector communities since 1974


General Penikisite Information

Help on Chemical Formula: Chemical Formula: BaMg2Al2(PO4)3(OH)3
Help on Composition: Composition: Molecular Weight = 583.72 gm
   Barium      23.53 %  Ba   26.27 % BaO
   Magnesium    7.29 %  Mg   12.08 % MgO
   Aluminum     9.24 %  Al   17.47 % Al2O3
   Iron         2.39 %  Fe    3.08 % FeO
   Phosphorus  15.92 %  P    36.48 % P2O5
   Hydrogen     0.52 %  H     4.63 % H2O
   Oxygen      41.11 %  O
              ______        ______ 
              100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: BaMg1.75Fe2+0.25Al2(PO4)3(OH)3
Help on Environment: Environment: Forms a series with kulanite (Fe-end member).
Help on IMA Status: IMA Status: Approved IMA 1977
Help on Locality: Locality: Rapid Creek (Cross Cut Creek), Big fish River, Yukon Territory, Canada. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Gunar Penikis (1936-1979), who discovered the locality.
Help on Name Pronunciation: Name Pronunciation: Penikisite + Pronunciation Say PENIKISITE
Help on Synonym: Synonym: IMA1976-023
 

Penikisite Image

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

Penikisite   Jagowerite

Comments: Light green crystal of jagowerite intergrown with darker green penikisite in a tetrahedrite (black) and white quartz matrix.
Location: From quartz veins cutting clays 26 km N of Hess River, Yukon Territory, Canada. Scale: Sample size 2x1 cm.
© Dave Barthelmy

Penikisite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =0.7456:1:0.4077
Help on Cell Dimensions: Cell Dimensions: a = 8.999, b = 12.069, c = 4.921, Z = 2; alpha = 90°, beta = 100.517°, gamma = 90° V = 525.49 Den(Calc)= 3.69
Help on Crystal System: Crystal System: Triclinic - PinacoidalH-M Symbol ( 1) Space Group: P1
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.094(1), 2.915(0.8), 2.649(0.7),
 

Physical Properties of Penikisite

Help on Cleavage: Cleavage: {010} Good, {110} Good
Help on Color: Color: Blue, Green.
Help on Density: Density: 3.79
Help on Diaphaneity: Diaphaneity: Transparent to Translucent
Help on Habit: Habit: Platy - Sheet forms (e.g. micas).
Help on Habit: Habit: Rosette - Bundled tabular aggregates resembling rose flower petals.
Help on Hardness: Hardness: 4 - Fluorite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white
 

Optical Properties of Penikisite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.002 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= -0.03 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1876,KPDmeas= 0.1827,KC= 0.1822
Ncalc = 1.67 - 1.69
Help on Optical Data: Optical Data: Biaxial (+), a=1.684, b=1.688, g=1.705, bire=0.0210, 2V(Calc)=54, 2V(Meas)=52-56. Dispersion r > v.
Help on Pleochroism (x): Pleochroism (x): grass green.
Help on Pleochroism (y): Pleochroism (y): blue green.
Help on Pleochroism (z): Pleochroism (z): pale pink.
 

Calculated Properties of Penikisite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.60 gm/cc
note: Specific Gravity of Penikisite =3.79 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.04
Boson Index = 0.96
Help on Photoelectric: Photoelectric: PEPenikisite = 101.16 barns/electron
U=PEPenikisite x rElectron Density= 364.53 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Penikisite is Not Radioactive
 

Penikisite Classification
Help on Dana Class: Dana Class: 41.09.01.02 (41)Anhydrous Phosphates, etc. Containing Hydroxyl or Halogen
  (41.09)where (A B)5 (XO4)3 Zq
  (41.09.01)Kulanite Group
 
41.09.01.01 Kulanite Ba(Fe,Mn,Mg)2Al2(PO4)3(OH)3 P 21/m 2/m
 
41.09.01.02 Penikisite BaMg2Al2(PO4)3(OH)3 P1 1
 
41.09.01.03 Bjarebyite (Ba,Sr)(Mn,Fe,Mg)2Al2(PO4)3(OH)3 P 21/m 2/m
 
41.09.01.04 Perloffite Ba(Mn,Fe)2Fe2(PO4)3(OH)3 P 21/m 2/m
 
41.09.01.05 Johntomaite! Ba(Fe,Ca,Mn)2Fe2(PO4)3(OH)3 P 21/m 2/m
Help on Strunz Class: Strunz Class: 08.BH.20 08 - PHOSPHATES, ARSENATES, VANADATES
  08.B - Phosphates, etc. with Additional Anions, without H2O
  08.BH -With medium-sized and large cations, (OH,etc.):RO4 = 1:1
 
08.BH.20 Bjarebyite (Ba,Sr)(Mn,Fe,Mg)2Al2(PO4)3(OH)3 P 21/m 2/m
 
08.BH.20 Kulanite Ba(Fe,Mn,Mg)2Al2(PO4)3(OH)3 P 21/m 2/m
 
08.BH.20 Penikisite BaMg2Al2(PO4)3(OH)3 P1 1
 
08.BH.20 Perloffite Ba(Mn,Fe)2Fe2(PO4)3(OH)3 P 21/m 2/m
 
08.BH.20 Johntomaite! Ba(Fe,Ca,Mn)2Fe2(PO4)3(OH)3 P 21/m 2/m
 

Other Penikisite Information
Help on References: References: NAME( Dana8) PHYS. PROP.(Dana8) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Penikisite :
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

Search for Penikisite using:

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

Visit our Advertisers for Penikisite :

AA Mineral Specimens

B & L Fine Minerals

Crystalarium.com

Dan Weinrich Fine Minerals

Dan Weinrich Auctions

Dakota Matrix

Desert Winds Gems and Minerals

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 Penikisite Mineral Data :

Ask about Penikisite 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 Penikisite Specimen Label here :

Penikisite

BaMg2Al2(PO4)3(OH)3
Dana No: 41.09.01.02 Strunz No: 08.BH.20
Locality:

 

Notes: