| Santabarbaraite Mineral Data |
General Santabarbaraite Information |
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| Fe+++3(PO4)2(OH)3·5(H2O) | |||
| Molecular Weight = 493.39 gm | |||
| Magnesium 0.34 % Mg 0.57 % MgO | |||
| Manganese 1.56 % Mn 2.24 % Mn2O3 | |||
| Iron 30.67 % Fe 43.86 % Fe2O3 | |||
| Phosphorus 12.87 % P 29.49 % P2O5 | |||
| Hydrogen 2.67 % H 23.84 % H2O | |||
| Oxygen 51.88 % O | |||
| ______ ______ | |||
| 100.00 % 100.00 % = TOTAL OXIDE | |||
| Fe3+2.71Mn3+0.14Mg0.07(PO4)2.05(OH)2.54·5.26(H2O) | |||
| Found in cavities in concretions. Altered from vivianite in a clastic sequence. | |||
| Approved IMA 2003 (Dana # Added) | |||
| Valdarno, Tuscany, Italy. Link to MinDat.org Location Data. | |||
| Named for Saint Barbara (4th century), a martyred christian who took refuge in the mines and converted many of the miners, hence her patronage to miners. | |||
| IMA2000-052 | |||
Santabarbaraite Image | |||
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Santabarbaraite Crystallography |
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| Amorphous- No Crystals | |||
Physical Properties of Santabarbaraite |
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| [010] Parting | |||
| Light brown, Brown. | |||
| 2.42 | |||
| Translucent | |||
| Brittle - Generally displayed by glasses and most non-metallic minerals. | |||
| Aggregates - Made of numerous individual crystals or clusters. | |||
| Pseudomorphous - Occurs in the form of another mineral. | |||
| Vitreous - Greasy | |||
| amber | |||
Optical Properties of Santabarbaraite |
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| CI meas= -0.022 (Excellent) - where the CI = (1-KPDmeas/KC) KPDmeas= 0.2872,KC= 0.2811 |
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| Isotropic, n=1.695. | |||
Calculated Properties of Santabarbaraite |
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relectron=2.42 gm/cc |
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| Fermion Index = 0.0071 Boson Index = 0.9929 |
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PESantabarbaraite = 10.02 barns/electron |
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| GRapi = 0 (Gamma Ray American Petroleum Institute Units) Santabarbaraite is Not Radioactive |
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Santabarbaraite Classification |
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| 42.10.1.2 (42)Hydrated Phosphates, etc., Containing Hydroxyl or Halogen | |||
| (42.10)where (AB)3 (XO4)2 Zq · x(H2O) | |||
| (42.10.1)Dana Group | |||
| VII/D.48-15 VII - Phosphates, Arsenates and Vanadates | |||
| VII/D - Water-bearing phosphates with unfamiliar anions, cations of very big and medium size: Al, Mg and Ca, Na, K | |||
| VII/D.48 - Gutsevichite - Yukonite series | |||
Other Santabarbaraite Information |
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| NAME( AmMin, v 88, p 1838) PHYS. PROP.(AmMin, v 88, p 1838) OPTIC PROP.(AmMin, v 88, p 1838) | |||
| Links to other databases for Santabarbaraite : 1 -Am. Min. Crystal Structure Database 2 -Athena 3 - Crocoite.com Mineral Locations 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas Search for Santabarbaraite using: Visit our Advertisers for Santabarbaraite : Translate Santabarbaraite Mineral Data : Ask about Santabarbaraite here : Print or Cut-and-Paste your Santabarbaraite Specimen Label here :
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