Monimolite  Mineral Data

Monimolite Mineral Data

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General Monimolite Information

Help on Chemical  Formula: Chemical Formula: (Pb,Ca)2Sb2O7
Help on Composition: Composition: Molecular Weight = 644.55 gm
   Calcium    4.66 %  Ca    6.53 % CaO
   Antimony  37.78 %  Sb   45.22 % Sb2O3
   Lead      40.18 %  Pb   43.29 % PbO
   Oxygen    17.38 %  O
            ______        ______ 
            100.00 %       95.04 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Pb1.25Ca0.75Sb2O7
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1865
Help on Locality: Locality: Harstig mine, Varmland, Sweden. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for "stable," because it decomposed chemically with great difficulty.
Help on Name Pronunciation: Name Pronunciation: Monimolite + Pronunciation Say MONIMOLITE
 

Monimolite Image

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Monimolite

Comments: Pale green monimolite crusts on matrix.
Location: Altar, Sonora, Mexico. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Monimolite Crystallography

Help on Cell Dimensions: Cell Dimensions: a = 10.47, Z = 8; V = 1,147.73 Den(Calc)= 7.46
Help on Crystal System: Crystal System: Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.48(1), 2.65(0.4), 5.8(0.3),
 

Physical Properties of Monimolite

Help on Cleavage: Cleavage: {111} Indistinct, {111} Indistinct, {111} Indistinct
Help on Color: Color: Gray green, Yellow, Dark brown, Orange.
Help on Density: Density: 5.94 - 7.29, Average = 6.61
Help on Diaphaneity: Diaphaneity: Translucent to Opaque
Help on Fracture: Fracture: Conchoidal - Uneven - Uneven fracture producing small, conchoidal fragments.
Help on Habit: Habit: Microscopic Crystals - Crystals visible only with microscopes.
Help on Hardness: Hardness: 4.5-6
Help on Luster: Luster: Adamantine - Greasy
Help on Streak: Streak: yellow
 

Optical Properties of Monimolite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.017 (Superior) - where the CI = (1-KPDmeas/KC)
CI calc= 0.129 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1421,KPDmeas= 0.1602,KC= 0.1631
Ncalc = 1.97 - 2.22
Help on Optical Data: Optical Data: Isotropic, n=2.06.
 

Calculated Properties of Monimolite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.65 gm/cc
note: Specific Gravity of Monimolite =6.62 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEMonimolite = 852.23 barns/electron
U=PEMonimolite x rElectron Density=4,819.22 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Monimolite is Not Radioactive
 

Monimolite Classification

Help on  Dana Class: Dana Class: 44.01.01.04 (44)Antimonates
  (44.01)(A)2 (X2 O6) (O,OH,F)
  (44.01.01)Stibiconite Group
 
44.01.01.01 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m
 
44.01.01.02 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
44.01.01.03 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m
 
44.01.01.03a Lewisite? (Ca,Fe,Na)2(Sb,Ti)2O7 F d3m 4/m 3 2/m
 
44.01.01.04 Monimolite (Pb,Ca)2Sb2O7 F d3m 4/m 3 2/m
 
44.01.01.05 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
44.01.01.06 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m
 
44.01.01.07 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m
Help on  Strunz Class: Strunz Class: 04.DH.20 04 - OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodate
  04.D - Metal:Oxygen = 1:2 and similar
  04.DH -With large (± medium-sized) cations; sheets of edge-sharing octahedra
 
04.DH.20 Bismutostibiconite Bi(Sb,Fe)2O7 F d3m 4/m 3 2/m
 
04.DH.20 Bindheimite Pb2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
04.DH.20 Monimolite (Pb,Ca)2Sb2O7 F d3m 4/m 3 2/m
 
04.DH.20 Partzite Cu2Sb2(O,OH)7(?) F d3m 4/m 3 2/m
 
04.DH.20 Stetefeldtite Ag2Sb2O6(O,OH) F d3m 4/m 3 2/m
 
04.DH.20 Romeite (Ca,Fe,Mn,Na)2(Sb,Ti)2O6(O,OH,F) F d3m 4/m 3 2/m
 
04.DH.20 Stibiconite SbSb2O6(OH) F d3m 4/m 3 2/m
 

Other Monimolite 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 Monimolite :
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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Print or Cut-and-Paste your Monimolite Specimen Label here :

Monimolite

(Pb,Ca)2Sb2O7
Dana No: 44.01.01.04 Strunz No: 04.DH.20
Locality:

 

Notes: