Santarosaite Mineral Data (original) (raw)

General Santarosaite Information

Help on Chemical Formula: Chemical Formula:

CuB2O4

Help on Composition: Composition:

Molecular Weight = 149.03 gm

Calcium 1.34 % Ca 1.88 % CaO

Copper 36.67 % Cu 45.90 % CuO

Boron 14.87 % B 47.88 % B2O3

Lead 4.17 % Pb 4.49 % PbO

Oxygen 42.94 % O

______ ______

100.00 % 100.16 % = TOTAL OXIDE

Help on Empirical Formula: Empirical Formula:

Cu0.86Pb0.03Ca0.05B2.05O4

Help on Environment: Environment:

From the oxidation zone of a polymetallic (silver, copper, lead) ore deposit. Natural analogue of copper metaborate.

Help on IMA Status: IMA Status:

Approved IMA 2007 (Dana # Added)

Help on Locality: Locality:

Mina Santa Rosa, Iquique, Northern Chile. Link to MinDat.org Location Data.

Help on Name Origin: Name Origin:

Named for the mine which was named after St. Rose of Lima (1586-1617), first Catholic American saint.

Help on Synonym: Synonym:

IMA2007-013

Santarosaite Image

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Click Here for Larger Santarosaite Image in a New Browser Window Images:

Click Here for Larger Santarosaite Image Santarosaite Atacamite Comments: Encrustations of santarosaite (Cotype Specimen, MD212; blue) with atacamite (green) and anhydrite (white) on matrix. Discovered by Arturo Molina, Iquique, Chile in 2003. Holotype, sample MD 87, largely used up for the examinations. Location: Santa Rosa Mine, Iquique, Chile.Scale: Sample Width 3 cm. © K.C. Lyncker, Hamburg / German Type Specimen Catalogue

Santarosaite Crystallography

Help on Axial Ratios: Axial Ratios:

a:c = 1:0.48901

Help on Cell Dimensions: Cell Dimensions:

a = 11.517, c = 5.632, Z = 12; V = 747.04 Den(Calc)= 3.97

Help on Crystal System: Crystal System:

Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42d;

Help on X Ray Diffraction: 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

Help on Color: Color:

Vivid blue.

Help on Diaphaneity: Diaphaneity:

Translucent

Help on Habit: Habit:

Globular - Spherical, or nearly so, rounded forms (e.g. wavellite).

Help on Streak: Streak:

pale blue

Optical Properties of Santarosaite

Help on Optical Data: Optical Data:

Uniaxial (?).

NCalc= 1.76 - from Gladstone-Dale relationship (KC = 0.1909) where Ncalc=Dcalc*KC+1

Calculated Properties of Santarosaite

Help on Electron Density: Electron Density:

Bulk Density (Electron Density)=3.76 gm/cc
note: Specific Gravity of Santarosaite =3.97 gm/cc.

Help on Fermion Index: Fermion Index:

Fermion Index = 0.03
Boson Index = 0.97

Help on Photoelectric: Photoelectric:

PESantarosaite = 84.15 barns/electron
U=PESantarosaite x rElectron Density= 316.74 barns/cc.

Help on Radioactivity: Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Santarosaite is Not Radioactive

Santarosaite Classification

Help on Dana Class: Dana Class:

24.05.02.02 (24)Borates - Anhydrous

(24.05)with miscellaneous formulae

(24.05.02)Dana Group

24.05.02.01 Calciborite CaB2O4 Pccn 2/m 2/m 2/m

24.05.02.02 Santarosaite! CuB2O4 I 42d; 4 2m

Help on Strunz Class: Strunz Class:

06.BD.05 06 - BORATES

06.B - Diborates

06.BD -Tektodiborates with tetrahedra

06.BD.05 Santarosaite! CuB2O4 I 42d; 4 2m

Other Santarosaite Information

Help on References: References:

NAME( AmMin, v93:402) PHYS. PROP.(AmMin, v93:402) OPTIC PROP.(AmMin, v93:402)

Help on See Also: 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

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Print or Cut-and-Paste your Santarosaite Specimen Label here :

Santarosaite

CuB2O4
Dana No: 24.05.02.02 Strunz No: 06.BD.05
Locality:

Notes: