Spertiniite (original) (raw)
A valid IMA mineral species
About SpertiniiteHide
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Colour:
Light blue, blue-green
Lustre:
Sub-Vitreous, Silky
Crystal System:
Orthorhombic
Name:
Named after Francesco Spertini (b. 1937), chief geologist, Jeffrey mine, Richmond County, Québec, Canada, the discovery locality.
Chemically similar to anthonyite. Also compare 'UM1974-06-O:CuH'.
In terms of chemistry alone, it is the Cu analogue of wülfingite, which is also orthorhombic but has different space group (different structure anyway).
Unique IdentifiersHide
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Long-form identifier:
mindat:1:1:3724:8
1722aa81-86ce-40fe-906e-c6aa65abd5c9
IMA Classification of SpertiniiteHide
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Type description reference:
Classification of SpertiniiteHide
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4.FD.05
4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
F : Hydroxides (without V or U)
D : Hydroxides with OH, without H2O; chains of edge-sharing octahedra
6.2.4.1
6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
7.3.4
7 : Oxides and Hydroxides
3 : Oxides of Cu
Mineral SymbolsHide
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As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.
| Symbol | Source | Reference |
|---|---|---|
| Sni | IMA–CNMNC | Warr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43 |
Physical Properties of SpertiniiteHide
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Colour:
Light blue, blue-green
Density:
3.93(2) g/cm3 (Measured) 3.94 g/cm3 (Calculated)
Comment:
Measured in Clerici solution
Optical Data of SpertiniiteHide
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RI values:
_n_α = 1.720(2) _n_γ = 1.800(2)
δ = 0.080
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Dispersion:
relatively strong
Comments:
X = colorless; Z = dark blue
Chemistry of SpertiniiteHide
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Crystallography of SpertiniiteHide
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Crystal System:
Orthorhombic
Class (H-M):
m _m_2 - Pyramidal
Cell Parameters:
a = 2.951(1) Å, b = 10.592(3) Å, c = 5.257(3) Å
Ratio:
a:b:c = 0.279 : 1 : 0.496
Crystal StructureHide
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| ID | Species | Reference | Link | Year | Locality | Pressure (GPa) | Temp (K) |
|---|---|---|---|---|---|---|---|
| 0010212 | Spertiniite | Oswald H R, Reller A, Schmalle H W, Dubler E (1990) Structure of copper(II) hydroxide, Cu(OH)2 Acta Crystallographica C46 2279-2284 |  |
1990 | 0 | 293 | |
| 0011836 | Spertiniite | Wyckoff R W G (1963) Second edition. Interscience Publishers, New York, New York Crystal Structures 1 290-295 | 1963 | 0 | 293 |
CIF Raw Data - click here to close
X-Ray Powder DiffractionHide
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Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 5.29 Å | (80) |
| 3.73 Å | (90) |
| 2.63 Å | (100) |
| 2.50 Å | (60) |
| 2.361 Å | (50) |
| 2.266 Å | (70) |
| 1.718 Å | (70) |
Geological EnvironmentHide
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Type Occurrence of SpertiniiteHide
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General Appearance of Type Material:
Small botryoidal aggregates, rarely fibrous and pale blue.
Place of Conservation of Type Material:
National Museum of Natural Sciences, Ottawa, Canada (NMNS 44696).
Cotype material (NMNS 44697, 44698 and 44699).
Geological Setting of Type Material:
Rodingite dyke near the contact with host serpentinized dunite.
Associated Minerals at Type Locality:
Reference:
Grice, J.D., Gasparrini, E. (1981) Spertiniite, Cu(OH)2 a new mineral from Jeffrey Mine, Quebec. Canadian Mineralogist: 19: 337-340.
Synonyms of SpertiniiteHide
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Other Language Names for SpertiniiteHide
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Common AssociatesHide
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Associated Minerals Based on Photo Data:
Related Minerals - Strunz-mindat GroupingHide
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Fluorescence of SpertiniiteHide
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Other InformationHide
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Notes:
Synthetic material is soluble in cold water, decomposes in hot water and is soluble in acids.
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 SpertiniiteHide
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References for SpertiniiteHide
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Reference List:
Localities for SpertiniiteHide
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This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the 
symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.
Locality ListHide
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- 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). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (e.g. from pseudomorphs).
All localities listed without proper references should be considered as questionable.