Santarosaite
A valid IMA mineral species
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About Santarosaite
Formula:
CuB2O4
Colour:
vivid blue
Lustre:
Vitreous
Specific Gravity:
3.96 (Calculated)
Crystal System:
Tetragonal
Name:
For the type locality, Santa Rosa Mine, Iquique, Chile.
The natural analogue of copper metaborate.
Unique Identifiers
Mindat ID:
29030
Long-form identifier:
mindat:1:1:29030:8
IMA Classification of Santarosaite
Approved
Approval year:
2007
First published:
2008
Classification of Santarosaite
6.BD.05
6 : BORATES
B : Diborates
D : Tektodiborates with tetrahedra
6 : BORATES
B : Diborates
D : Tektodiborates with tetrahedra
24.5.5.
24 : ANHYDROUS BORATES
5 : Miscellaneous
24 : ANHYDROUS BORATES
5 : Miscellaneous
Mineral Symbols
As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference for Standard |
|---|---|---|
| Srs | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Pronunciation of Santarosaite
Pronunciation:
| Play | Recorded by | Country |
|---|---|---|
| Jolyon Ralph | United Kingdom |
Physical Properties of Santarosaite
Chemistry of Santarosaite
Mindat Formula:
CuB2O4
Element Weights:
Elements listed:
Common Impurities:
Pb,Ca
Crystallography of Santarosaite
Crystal System:
Tetragonal
Class (H-M):
4 2m - Scalenohedral
Space Group:
I4 2d
Cell Parameters:
a = 11.517(8) Å, c = 5.632(6) Å
Ratio:
a:c = 1 : 0.489
Unit Cell V:
747.1 ų
Z:
12
Morphology:
globular aggregates of tiny leaf-like crystallites less than 1 micron thick.
Crystal Structure
Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
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Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File Best | x | y | z | a | b | c
CIF File Best | x | y | z | a | b | c
Rotation
Stop | Start
Stop | Start
Labels
Console Off | On | Grey | Yellow
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Data courtesy of the American Mineralogist Crystal Structure Database. Click on an AMCSD ID to view structure
| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0009389 | Santarosaite | Martinez-Ripoll M, Martinez-Carrera S, Garcia-Blanco S (1971) The crystal structure of copper metaborate, CuB2O4 Acta Crystallographica B27 677-681 |  | 1971 | synthetic | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 3.707 Å | (100) |
| 3.638 Å | (47) |
| 2.876 Å | (17) |
| 2.775 Å | (35) |
| 2.572 Å | (26) |
| 2.501 Å | (26) |
| 1.822 Å | (21) |
| 1.793 Å | (20) |
Geological Environment
Paragenetic Mode(s):
| Paragenetic Mode | Earliest Age (Ga) |
|---|---|
| Stage 7: Great Oxidation Event | <2.4 |
| 47c : [Carbonates, phosphates, borates, nitrates] | |
| 47h : [Near-surface oxidized, dehydrated minerals] |
Type Occurrence of Santarosaite
General Appearance of Type Material:
globules to 60 microns in size
Place of Conservation of Type Material:
Mineralogical Museum of the University of Hamburg, Germany
Associated Minerals at Type Locality:
Synonyms of Santarosaite
Other Language Names for Santarosaite
Common Associates
Associations Based on Photo Data:
Fluorescence of Santarosaite
not observed
Other Information
Notes:
not soluble in water, but in HCl
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
Internet Links for Santarosaite
mindat.org URL:
https://www.mindat.org/min-29030.html
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Please feel free to link to this page.
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References for Santarosaite
Localities for Santarosaite
Showing 1 localities.
symbol to view information about a locality.
The Locality List
- This locality has map coordinates listed.
- This locality has estimated coordinates.
ⓘ - Click for references and further information on this occurrence.
? - Indicates mineral may be doubtful at this locality.
- Good crystals or important locality for species.
- World class for species or very significant.
(TL) - Type Locality for a valid mineral species.
(FRL) - First Recorded Locality for everything else (eg varieties).
All localities listed without proper references should be considered as questionable.
Chile (TL) | |
| Schlüter et al. (2008) |
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Santa Rosa Mine, Santa Rosa-Huantajaya mining district, Iquique Province, Tarapacá, Chile