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Spertiniite

A valid IMA mineral species
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Cu(OH)2
Colour:
Light blue, blue-green
Lustre:
Sub-Vitreous, Silky
Specific Gravity:
3.93
Crystal System:
Orthorhombic
Name:
Named after Francesco Spertini (b. 1937), chief geologist, Jeffrey mine, Richmond County, Québec, Canada, the discovery locality.
Type Locality:
ⓘJeffrey Mine, Val-des-Sources, Les Sources RCM, Estrie, Québec, Canada
Chemically similar toanthonyite. Also compare'UM1974-06-O:CuH'.

In terms of chemistry alone, it is the Cu analogue ofwülfingite, which is also orthorhombic but has different space group (different structure anyway).


Unique Identifiers
Approval year:
1980
First published:
1981
Type description reference:
Grice, J.D., Gasparrini, E. (1981) Spertiniite, Cu(OH)2, a new mineral from the Jeffrey Mine, Quebec. The Canadian Mineralogist, 19(1), 337-340.

Classification of Spertiniite

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
Dana 8th ed.:
6.2.4.1

6 : HYDROXIDES AND OXIDES CONTAINING HYDROXYL
2 : X(OH)2
Hey's CIM Ref.:
7.3.4

7 : Oxides and Hydroxides
3 : Oxides of Cu

Mineral Symbols
Transparency:
Transparent
Colour:
Light blue, blue-green
Comment:
Soft
Tenacity:
Brittle
Cleavage:
None Observed
Density:
3.93(2) g/cm3 (Measured)    3.94 g/cm3 (Calculated)
Comment:
Measured in Clerici solution

Optical Data of Spertiniite
Surface Relief:
Moderate
Dispersion:
relatively strong
Pleochroism:
Strong
Comments:
X = colorless; Z = dark blue

Chemistry of Spertiniite
CAS Registry number:
20427-59-2

CAS Registry numbers are published by theAmerican Chemical Society

Crystallography of Spertiniite
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:
AtacamiteChalcociteNative CopperDiopsideGrossular
Vesuvianite
Reference:
Grice, J.D., Gasparrini, E. (1981) Spertiniite, Cu(OH)2, a new mineral from the Jeffrey Mine, Quebec. The Canadian Mineralogist, 19(1), 337-340.

Synonyms of Spertiniite

Other Language Names for Spertiniite

Common AssociatesOrth.mmm(2/m2/m2/m)4.FD.10Montroseite(V3+,Fe3+)O(OH)Orth.mmm(2/m2/m2/m)4.FD.10TsumgalliteGaO(OH)Orth.mmm(2/m2/m2/m)4.FD.10GroutiteMn3+O(OH)Orth.mmm(2/m2/m2/m) :Pnma4.FD.10BracewelliteCrO(OH)Orth.mmm(2/m2/m2/m)4.FD.10GuyanaiteCrO(OH)Orth.mmm(2/m2/m2/m)4.FD.15ManganiteMn3+O(OH)Mon. 2/m :P21/b4.FD.20Yttrotungstite-(Y)YW2O6(OH)3Mon. 2/m :P21/m4.FD.20Yttrotungstite-(Ce)CeW2O6(OH)3Mon. 2 :P214.FD.25FrankhawthorneiteCu2Te6+O4(OH)2Mon. 2/m4.FD.30Khinite-3TPb2+Cu2+3Te6+O6(OH)2Trig. 3 :P324.FD.30HousleyitePb6CuTe6+4O18(OH)2Mon. 2/m :P21/m4.FD.30KhinitePb2+Cu2+3[Te6+O6](OH)2Orth.mm2 :Fdd2

Fluorescence of Spertiniite

Other Information
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    • References for SpertiniiteⓘGreat Australia MineVic Cloete collection
    Canada (TL)
     
    179-181.+3 other referencesHorváth et al. (1990)
    China
     
    Pavel.M. Kartashov (n.d.)
    France
     
    Chollet et al. (2013)
    Germany
     
    Kolitsch et al. (2000)Schnorrer-Köhler (1988)International Association of Collectors of Slag Minerals (3)+1 other reference58 (in German)+1 other referenceSchnorrer-Köhler et al. (1991)Collection of Elmar LacknerKnoll (2004)
    Italy
     
    Ciriotti et al. (2021)Ciriotti et al. (2021)Ciriotti et al. (2021)Ciriotti et al. (2021)
    Jordan
     
    Kim et al. (2021)
    Kazakhstan
     
    first finds in the USSR. Novye Dannye o Mineralakh SSSR et al. (in Russian)+2 other references
    Namibia
     
    Keller et al. (1986)
    Romania
     
    Szakáll et al. (2014)
    Russia
     
    webmineral.ru (2020)Savva et al. (2019)Savva et al. (2023)
    Spain
     
    Rewitzer et al. (2019)Calvo Rebollar et al. (2022)
    USA
     
    Graeme (1993)+1 other referenceHeinrich et al. (2004)Heinrich et al. (2004)
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