Mineralogy Database

Verplanckite Mineral Data

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General Verplanckite Information

Help on Chemical  Formula: Chemical Formula: Ba2(Mn++,Ti,Fe++)2Si2O6(O,OH,Cl,F)2•3(H2O)
Help on Composition: Composition: Molecular Weight = 585.36 gm
   Barium     46.92 %  Ba   52.39 % BaO
   Titanium    0.82 %  Ti    1.36 % TiO2
   Manganese   6.57 %  Mn    8.48 % MnO
   Iron        1.91 %  Fe    2.45 % FeO
   Silicon     9.60 %  Si   20.53 % SiO2
   Hydrogen    1.21 %  H    10.77 % H2O
   Chlorine    3.63 %  Cl    3.63 % Cl
                -   %   Cl   -0.82 % -O=Cl2   
   Oxygen     28.70 %  O
   Fluorine    0.65 %  F     0.65 % F
                -   %   F    -0.27 % -O=F2    
             ______        ______ 
             100.00 %       99.18 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Ba2Mn2+0.7Fe2+0.2Ti0.1Si2O6.5(OH)Cl0.6F0.2�3(H2O)
Help on Environment: Environment: Near the contact between meta-sediments and biotite-bearing quartz diorite.
Help on IMA Status: IMA Status: Approved IMA 1965
Help on Locality: Locality: Big Creek - Rush Creek sanbornite deposit, 5 miles NE of Trimmer, Fresno Co., California. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for William E. VerPlanck (1916-1963), American geologist, California Division of Mines & Geology.
Help on Name Pronunciation: Name Pronunciation: Verplanckite + Pronunciation Say VERPLANCKITE
Help on Synonym: Synonym: ICSD 2627
  PDF 18-175

Verplanckite Image

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Comments: Orange translucent verplanckite in sanbornite.
Location: Esquire #7 Mine, Big Creek, Fresno County, California, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Verplanckite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.43907
Help on Cell Dimensions: Cell Dimensions: a = 16.398, c = 7.2, Z = 6; V = 1,676.66 Den(Calc)= 3.48
Help on Crystal System: Crystal System: Hexagonal - Dihexagonal Dipyramidal H-M Symbol (6/m 2/m 2/m) Space Group: P 6/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.95(1), 2.738(0.7), 2.97(0.7),

Physical Properties of Verplanckite

Help on Cleavage: Cleavage: {1120} Good, {0001} Indistinct
Help on Color: Color: Brownish yellow, Brownish orange.
Help on Density: Density: 3.52
Help on Habit: Habit: Aggregates - Made of numerous individual crystals or clusters.
Help on Habit: Habit: Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 2.5-3 - Finger Nail-Calcite
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: light orange

Optical Properties of Verplanckite

Help on Dichroism (e): Dichroism (e): colorless.
Help on Dichroism (w): Dichroism (w): orange yellow.
Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.041 (Good) - where the CI = (1-KPDmeas/KC)
CI calc= -0.053 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1947,KPDmeas= 0.1925,KC= 0.1849
Ncalc = 1.64 - 1.65
Help on Optical Data: Optical Data: Uniaxial (-), e=1.672, w=1.683, bire=0.0110.

Calculated Properties of Verplanckite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=3.22 gm/cc
note: Specific Gravity of Verplanckite =3.52 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEVerplanckite = 208.68 barns/electron
U=PEVerplanckite x rElectron Density= 672.37 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Verplanckite is Not Radioactive

Verplanckite Classification

Help on  Dana Class: Dana Class: (77)Tectosilicate Zeolite group
  (77.02)related species
  (77.02.08)Dana Group Verplanckite Ba2(Mn,Ti,Fe)2Si2O6(O,OH,Cl,F)2•3(H2O) P 6/mmm 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.CE.10 09 - SILICATES (Germanates)
  09.C - Cyclosilicates
  09.CE -[Si4O12]8- 4-membered single rings (vierer-Einfachringe),
09.CE.10 Verplanckite Ba2(Mn,Ti,Fe)2Si2O6(O,OH,Cl,F)2•3(H2O) P 6/mmm 6/m 2/m 2/m

Other Verplanckite Information

Help on References: References: NAME( Dana8) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Dana8)
Help on See Also: See Also: Links to other databases for Verplanckite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Dana No: Strunz No: 09.CE.10





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