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Maricopaite Mineral Data

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General Maricopaite Information

Help on Chemical  Formula: Chemical Formula: Pb7Ca2(Si,Al)48O100•32(H2O)
Help on Composition: Composition: Molecular Weight = 5,088.14 gm
   Calcium    1.73 %  Ca    2.42 % CaO
   Aluminum   6.15 %  Al   11.62 % Al2O3
   Silicon   20.09 %  Si   42.98 % SiO2
   Hydrogen   1.26 %  H    11.26 % H2O
   Lead      29.32 %  Pb   31.58 % PbO
   Oxygen    41.44 %  O
            ______        ______ 
            100.00 %       99.87 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb7.2Ca2.2Al11.6Si36.4O100•31.8(H2O)
Help on Environment: Environment: In a hydrothermal Pb-Cu ore vein, coating and filling fractures in quartz.
Help on IMA Status: IMA Status: Approved IMA 1988
Help on Locality: Locality: Moon Anchor mine, near Tonopah, Maricopa County, Arizona, USA. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for the locality.
Help on Name Pronunciation: Name Pronunciation: Maricopaite + Pronunciation Say MARICOPAITE
Help on Synonym: Synonym: ICSD 75278
  PDF 46-1321
 

Maricopaite Image

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  Maricopaite

Comments: Opaque white prismatic maricopaite microcrystals and yellow crystalline mimetite.
Location: Moon Anchor Mine, near Tonopah, Maricopa County, Arizona, USA. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Maricopaite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =0.9863:1:0.3826
Help on Cell Dimensions: Cell Dimensions: a = 19.434, b = 19.702, c = 7.538, Z = 1; V = 2,886.21 Den(Calc)= 2.93
Help on Crystal System: Crystal System: Orthorhombic - Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: Cm2m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 13.7(1), 3.216(0.5), 9.86(0.4),
 

Physical Properties of Maricopaite

Help on Cleavage: Cleavage: {010} Imperfect
Help on Color: Color: White.
Help on Density: Density: 2.94
Help on Diaphaneity: Diaphaneity: Translucent
Help on Fracture: Fracture: Friable - The crumbly disintegration of earthy materials or highly fractured minerals.
Help on Habit: Habit: Radial - Crystals radiate from a center without producing stellar forms (e.g. stibnite)
Help on Hardness: Hardness: 1-1.5 - Talc or a little harder
Help on Luster: Luster: Vitreous - Silky
Help on Streak: Streak: white
 

Optical Properties of Maricopaite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.01 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.006 (Superior) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1976,KPDmeas= 0.1969,KC= 0.1988
Ncalc = 1.58
Help on Optical Data: Optical Data: Biaxial (-), a=1.563, b=1.582, g=1.592, bire=0.0290, 2V(Calc)=70, 2V(Meas)=70. Dispersion r > v strong.
 

Calculated Properties of Maricopaite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.78 gm/cc
note: Specific Gravity of Maricopaite =2.93 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.07
Boson Index = 0.93
Help on Photoelectric: Photoelectric: PEMaricopaite = 475.84 barns/electron
U=PEMaricopaite x rElectron Density=1,322.29 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Maricopaite is Not Radioactive
 

Maricopaite Classification

Help on  Dana Class: Dana Class: 77.01.06.03 (77)Tectosilicate Zeolite group
  (77.01)true zeolites
  (77.01.06)Mordenite and related species
 
77.01.06.01 Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2
 
77.01.06.02 Epistilbite CaAl2Si6O16•5(H2O) C1 1
 
77.01.06.03 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m
 
77.01.06.04 Dachiardite-Ca (Ca,Na2,K2)5Al10Si38O96•25(H2O) C 2/m 2/m
 
77.01.06.05 Dachiardite-Na (Na2,Ca,K2)4Al4Si20O48•13(H2O) C 2/m 2/m
 
77.01.06.06 Ferrierite-Mg (Mg,Na,K)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m
 
77.01.06.06a Ferrierite-K! (K,Na)2Mg(Si,Al)18O36•9(H2O) Pnnm 2/m 2/m 2/m
 
77.01.06.06b Ferrierite-Na! (Na,K)2Mg(Si,Al)18O36•9(H2O) P 21/n 2/m
 
77.01.06.07 Boggsite NaCa2(Al5Si19O48)•17(H2O) I mma 2/m 2/m 2/m
 
77.01.06.08 Gottardiite! Na3Mg3Ca5Al19Si117O272•93(H2O) C mca 2/m 2/m 2/m
 
77.01.06.09 Terranovaite! (Na,Ca)8(Si68Al12)O160•29(H2O) C mcm 2/m 2/m 2/m
 
77.01.06.10 Mutinaite! Na3Ca4Si85Al11O192•60(H2O) P nma 2/m 2/m 2/m
 
77.01.06.12 Direnzoite! NaK6MgCa2(Al13Si47O120)•36H2O Pmmn 2/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 09.GD.35 09 - SILICATES (Germanates)
  09.G - Tektosilicates with Zeolitic H2O
  09.GD -Chains of 6-membered rings � tabular zeolites
 
09.GD.35 Maricopaite Pb7Ca2(Si,Al)48O100•32(H2O) Cm2m 2/m 2/m 2/m
 
09.GD.35 Mordenite (Ca,Na2,K2)Al2Si10O24•7(H2O) C mc21 mm2
 

Other Maricopaite Information

Help on References: References: NAME( AntBidBlaNic2) PHYS. PROP.(Am.Min.,Vol.74,p947,1989) OPTIC PROP.(Am.Min.,Vol.74,p947,1989)
Help on See Also: See Also: Links to other databases for Maricopaite :
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
15 - WWW-MINCRYST

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Maricopaite

Pb7Ca2(Si,Al)48O100•32(H2O)
Dana No: 77.01.06.03 Strunz No: 09.GD.35
Locality:

 

Notes:

 

 
   
 


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