General Santarosaite Information Chemical Formula: |
CuB2O4 |
Composition: |
Molecular Weight = 149.03 gm |
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Calcium 1.34 % Ca 1.88 % CaO |
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Copper 36.67 % Cu 45.90 % CuO |
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Boron 14.87 % B 47.88 % B2O3 |
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Lead 4.17 % Pb 4.49 % PbO |
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Oxygen 42.94 % O |
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______ ______ |
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100.00 % 100.16 % = TOTAL OXIDE |
Empirical Formula: |
Cu0.86Pb0.03Ca0.05B2.05O4 |
Environment: |
From the oxidation zone of a polymetallic (silver, copper, lead) ore deposit. Natural analogue of copper metaborate. |
IMA Status: |
Approved IMA 2007 (Dana # Added) |
Locality: |
Mina Santa Rosa, Iquique, Northern Chile. Link to MinDat.org Location Data. |
Name Origin: |
Named for the mine which was named after St. Rose of Lima (1586-1617), first Catholic American saint. |
Synonym: |
IMA2007-013 |
| | Santarosaite Image
Images:
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Images:
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Santarosaite Crystallography Axial Ratios: |
a:c = 1:0.48901 |
Cell Dimensions: |
a = 11.517, c = 5.632, Z = 12; V = 747.04 Den(Calc)= 3.97 |
Crystal System: |
Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42d; |
X Ray Diffraction: |
By Intensity(I/Io): 3.797(1), 3.638(0.47), 2.775(0.35),2.501(0.26), 2.572(0.26), 1.822(0.21), 1.793(0.2), 2.876(0.17), |
| Physical Properties of Santarosaite Color: |
Vivid blue. |
Diaphaneity: |
Translucent |
Habit: |
Globular - Spherical, or nearly so, rounded forms (e.g. wavellite). |
Streak: |
pale blue |
| Optical Properties of Santarosaite Optical Data: |
Uniaxial (?). |
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NCalc= 1.76 - from Gladstone-Dale relationship (KC = 0.1909) where Ncalc=Dcalc*KC+1 |
| Calculated Properties of Santarosaite Electron Density: |
Bulk Density (Electron Density)=3.76 gm/cc |
note: Specific Gravity of Santarosaite =3.97 gm/cc. Fermion Index: |
Fermion Index = 0.03 |
Boson Index = 0.97 Photoelectric: |
PESantarosaite = 84.15 barns/electron |
U=PESantarosaite x rElectron Density= 316.74 barns/cc. Radioactivity: |
GRapi = 0 (Gamma Ray American Petroleum Institute Units) |
Santarosaite is Not Radioactive | Santarosaite Classification Dana Class: |
24.05.02.02 (24)Borates - Anhydrous |
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(24.05)with miscellaneous formulae |
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(24.05.02)Dana Group |
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Strunz Class: |
06.BD.05 06 - BORATES |
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06.B - Diborates |
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06.BD -Tektodiborates with tetrahedra |
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| Other Santarosaite Information References: |
NAME( AmMin, v93:402) PHYS. PROP.(AmMin, v93:402) OPTIC PROP.(AmMin, v93:402) |
See Also: |
Links to other databases for Santarosaite : |
1 - Am. Min. Crystal Structure Database 2 - Athena 3 - GeoScienceWorld 4 - Google Images 5 - Google Scholar 6 - MinDAT 7 - Mineralienatlas (Deutsch) 8 - Online Mineral Museum 9 - QUT Mineral Atlas 10 - Ruff.Info Search for Santarosaite using: Visit our Advertisers for Santarosaite : A Bijoux Google Search for SantarosaiteAdam's Minerals Google Search for Santarosaite Cape Minerals Google Search for Santarosaite Dakota Matrix Minerals Google Search for Santarosaite Excalibur Mineral Corp. Google Search for Santarosaite Exceptional Minerals Google Search for Santarosaite John Betts Fine Minerals Search for Santarosaite McDougall Minerals Google Search for Santarosaite Mineral News Website Link Rock and Mineral Shows Google Search for Santarosaite Weinrich Minerals, Inc. Google Search for Santarosaite Ask about Santarosaite here : Print or Cut-and-Paste your Santarosaite Specimen Label here :
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