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Pitticite Mineral Data
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General Pitticite Information
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 Chemical Formula: |
Hydrous ferric arsenate sulfate (Fe, AsO4, SO4, H2O) |
| Composition: |
Molecular Weight = 364.69 gm |
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Iron 30.63 % Fe 43.79 % Fe2O3 |
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Arsenic 20.54 % As 31.51 % As2O5 |
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Hydrogen 0.55 % H 4.94 % H2O |
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Sulfur 8.79 % S 21.95 % SO3 |
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Oxygen 39.48 % O |
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______ ______ |
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100.00 % 102.19 % = TOTAL OXIDE |
| Empirical Formula: |
Fe3+2(AsO4)(SO4)•(H2O) |
| Environment: |
Late secondary mineral formed by oxidation of earlier arsenic-bearing species, may be deposited by mine and spring waters. |
| IMA Status: |
Valid Species (Pre-IMA) 1813 |
| Locality: |
Frieber, Schneeberg, Schwarzenberg, Johanngeorgenstadt, Marienber, and other districts in Saxony, Germany. Link to MinDat.org Location Data. |
| Name Origin: |
From the Greek for "pitch", for its typical resinous appearance. |
| Name Pronunciation: |
Pitticite + Pronunciation  |
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Pitticite Image |
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Images:
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Pitticite Crystallography
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| Crystal System: |
Amorphous- No Crystals |
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Physical Properties of Pitticite
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| Cleavage: |
None |
| Color: |
Gray, Gray white, Yellow, Yellow brown, White. |
| Density: |
2.5 |
| Diaphaneity: |
Transparent to Opaque |
| Fracture: |
Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. quartz). |
| Habit: |
Massive - Uniformly indistinguishable crystals forming large masses. |
| Habit: |
Reniform - "Kidney like" in shape (e.g.. hematite). |
| Hardness: |
2-3 - Gypsum-Calcite |
| Luminescence: |
Non-fluorescent. |
| Luster: |
Vitreous - Greasy |
| Streak: |
yellow white |
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Optical Properties of Pitticite
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| Gladstone-Dale: |
CI meas= -0.018 (Superior) - where the CI = (1-KPDmeas/KC)
KPDmeas= 0.2491,KC= 0.2446
Ncalc = 1.61 |
| Optical Data: |
Biaxial (?), a=1.61-1.63, b=1.616-1.635, |
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Calculated Properties of Pitticite
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| Electron Density: |
Bulk Density (Electron Density)=2.40 gm/cc
note: Specific Gravity of Pitticite =2.50 gm/cc.
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| Fermion Index: |
Fermion Index = 0.0073427084
Boson Index = 0.9926572916 |
| Photoelectric: |
PEPitticite = 23.71 barns/electron
U=PEPitticite x rElectron Density= 56.88 barns/cc.
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| Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Pitticite is Not Radioactive |
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Pitticite Classification
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| Dana Class: |
43.05.03.01 (43)Compound Phosphates, etc. |
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(43.05)(Hydrated Compound Anions With Hydroxyl or Halogen) |
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(43.05.03)Pitticite Group |
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43.05.03.01 Pitticite Hydrousferricarsenatesulfate(Fe,AsO4,SO4,H2O) None |
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43.05.03.02 Zykaite Fe4(AsO4)3(SO4)(OH)•15(H2O) Unk Ortho |
| Strunz Class: |
08.DB.05 08 - PHOSPHATES, ARSENATES, VANADATES |
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08.D - Phosphates, etc |
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08.DB -With only medium-sized cations, (OH, etc.):RO4 < 1:1 |
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08.DB.05 Diadochite Fe2(PO4)(SO4)(OH)•6(H2O) P1 1 |
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08.DB.05 Pitticite Hydrousferricarsenatesulfate(Fe,AsO4,SO4,H2O) None |
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Other Pitticite Information
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| References: |
NAME( AntBidBlaNic4) PHYS. PROP.(Dana) OPTIC PROP.(Enc. of Minerals,2nd ed.,1990) |
| See Also: |
Links to other databases for Pitticite :
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 Pitticite Specimen Label here :
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Pitticite
Hydrous ferric arsenate sulfate (Fe, AsO4, SO4, H2O)
Dana No: 43.05.03.01 Strunz No: 08.DB.05
Locality:
Notes:
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