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Boggsite Mineral Data

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General Boggsite Information

Help on Chemical  Formula: Chemical Formula: NaCa2(Al5Si19O48)•17(H2O)
Help on Composition: Composition: Molecular Weight = 1,845.91 gm
   Sodium     1.25 %  Na    1.68 % Na2O
   Calcium    4.34 %  Ca    6.08 % CaO
   Aluminum   7.31 %  Al   13.81 % Al2O3
   Silicon   28.91 %  Si   61.84 % SiO2
   Hydrogen   1.86 %  H    16.59 % H2O
   Oxygen    56.34 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: NaCa2Al5Si19O48•17(H2O)
Help on Environment: Environment: In vesicles in one of a series of porphyritic basalt flows intercalated with pyroclastics and minor sediments.
Help on IMA Status: IMA Status: Approved IMA 1990
Help on Locality: Locality: Along Goble Creek, near Goble, Columbia Co., Oregon, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: After Robert Maxwell Boggs (1918- ), of Seattle, Washington, USA, and his son, Dr. Russell Calvin Boggs (1952- ), of Cheney, Washington, USA, mineral collectors.
Help on Name Pronunciation: Name Pronunciation: Boggsite Say BOGGSITE
Help on Synonym: Synonym: ICSD 69120
  PDF 42-1379

Boggsite Image

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Comments: White translucent botryoidal crystals of boggsite lining vug in basalt.
Location: Neer Road Pit, Goble, Columbia County, Oregon, uSA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Pure white spheroidal boggsite crystal.
Location: Neer Road, Goble, Columbia Co., Oregon, USA. Scale: Crystal size 0.5 mm.
© Tom Loomis / Dakota Matrix

Boggsite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.8503:1:0.5377
Help on Cell Dimensions: Cell Dimensions: a = 20.236, b = 23.798, c = 12.798, Z = 4; V = 6,163.21 Den(Calc)= 1.99
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: I mma
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.37(1), 11.3(1), 3.86(0.8),

Physical Properties of Boggsite

Help on Cleavage: Cleavage: None
Help on Color: Color: Colorless, White.
Help on Density: Density: 1.98
Help on Diaphaneity: Diaphaneity: Transparent
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Vitreous (Glassy)
Help on Streak: Streak: white

Optical Properties of Boggsite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= -0.062 (Fair) - where the CI = (1-KPDmeas/KC)
CI calc= -0.056 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2425,KPDmeas= 0.2438,KC= 0.2296
Ncalc = 1.45 - 1.46
Help on Optical Data: Optical Data: Biaxial (-), a=1.48, b=1.481, g=1.487, bire=0.0070, 2V(Calc)=46, 2V(Meas)=25.

Calculated Properties of Boggsite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.02 gm/cc
note: Specific Gravity of Boggsite =1.99 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.01
Boson Index = 0.99
Help on Photoelectric: Photoelectric: PEBoggsite = 1.91 barns/electron
U=PEBoggsite x rElectron Density= 3.85 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Boggsite is Not Radioactive

Boggsite Classification

Help on  Dana Class: Dana Class: (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.06)Mordenite and related species Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2 Epistilbite CaAl2Si6O16•5(H2O) C1 1 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96•25(H2O) C 2/m 2/m Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48•13(H2O) C 2/m 2/m Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m Ferrierite-K! (K,Na)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36•9(H2O) P 21/n 2/m Boggsite NaCa2(Al5Si19O48)•17(H2O) I mma 2/m 2/m 2/m Gottardiite! Na3Mg3Ca5Al19Si117O272•93(H2O) C mca 2/m 2/m 2/m Terranovaite! (Na,Ca)8(Si68Al12)O160•29(H2O) C mcm 2/m 2/m 2/m Mutinaite! Na3Ca4Si85Al11O192•60(H2O) P nma 2/m 2/m 2/m Direnzoite! NaK6MgCa2(Al13Si47O120)•36H2O Pmmn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.GC.30 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GC -Chains of doubly-connected 4-membered rings
09.GC.30 Boggsite NaCa2(Al5Si19O48)•17(H2O) I mma 2/m 2/m 2/m

Other Boggsite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.75,p1200-1204,1990) OPTIC PROP.(Am.Min.,Vol.75,p1200-1204,1990)
Help on See Also: See Also: Links to other databases for Boggsite :
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
16 - Zeolite Database by Bruno Herreros

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Dana No: Strunz No: 09.GC.30





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