Perchiazziite
A valid IMA mineral species
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Formula:
Co2(CO3)(OH)2
Type material has the empirical formula (Co0.93Zn0.67Cu0.15Ni0.12Mg0.10Ca0.02Mn0.01)Σ2.00(CO3)(OH)2.
Colour:
Orange-pink
Lustre:
Silky
Hardness:
4
Specific Gravity:
3.970 (Calculated)
Crystal System:
Monoclinic
Member of:
Type Locality:
The first cobalt end member of the group. The Co analogue of malachite and rosasite.
Compare sphaerocobaltite and škáchaite.
Compare sphaerocobaltite and škáchaite.
Unique Identifiers
Mindat ID:
470782
Long-form identifier:
mindat:1:1:470782:6
IMA Classification of Perchiazziite
Approved
IMA Formula:
Co2+2(CO3)(OH)2
Approval year:
2023
Approval history:
IMA no. 2023-013
Type description reference:
Barbaro, Anna; Nestola, Fabrizio; Kasatkin, Anatoly V.; Ardit, Matteo; Rotiroti, Nicola; Škoda, Radek; Agakhanov, Atali A.; Dalconi, Maria Chiara; Castellaro, Fabrizio (2024) Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. The Canadian Journal of Mineralogy and Petrology, 62 (2). doi:10.3749/2300048
Classification of Perchiazziite
5.BA.10
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
A : With Cu, Co, Ni, Zn, Mg, Mn
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 |
|---|---|---|
| Pcz | 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 Perchiazziite
Silky
Transparency:
Translucent
Colour:
Orange-pink
Comment:
Aggregates of perchiazziite are pale orange-pink on their outer surfaces but white in thin section.
Streak:
White
Hardness:
4 on Mohs scale
Tenacity:
Brittle
Cleavage:
None Observed
Parting:
none
Fracture:
Irregular/Uneven
Density:
3.970 g/cm3 (Calculated)
Chemistry of Perchiazziite
Mindat Formula:
Co2(CO3)(OH)2
Type material has the empirical formula (Co0.93Zn0.67Cu0.15Ni0.12Mg0.10Ca0.02Mn0.01)Σ2.00(CO3)(OH)2.
Type material has the empirical formula (Co0.93Zn0.67Cu0.15Ni0.12Mg0.10Ca0.02Mn0.01)Σ2.00(CO3)(OH)2.
Element Weights:
Elements listed:
Crystallography of Perchiazziite
Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
P21/c
Setting:
P21/a
Cell Parameters:
a = 12.183(2) Å, b = 9.319(2) Å, c = 3.1570(3) Å
β = 97.16(1)°
β = 97.16(1)°
Ratio:
a:b:c = 1.307 : 1 : 0.339
Unit Cell V:
355.63 ų (Calculated from Unit Cell)
Z:
4
X-Ray Powder Diffraction
Powder Diffraction Data:
| d-spacing | Intensity |
|---|---|
| 6.040 Å | (22) |
| 5.073 Å | (38) |
| 3.694 Å | (53) |
| 2.599 Å | (100) |
| 2.535 Å | (26) |
| 2.480 Å | (27) |
| 2.140 Å | (26) |
| 1.561 Å | (25) |
Reference:
Barbaro, Anna; Nestola, Fabrizio; Kasatkin, Anatoly V.; Ardit, Matteo; Rotiroti, Nicola; Škoda, Radek; Agakhanov, Atali A.; Dalconi, Maria Chiara; Castellaro, Fabrizio (2024) Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. The Canadian Journal of Mineralogy and Petrology, 62 (2). doi:10.3749/2300048
Type Occurrence of Perchiazziite
General Appearance of Type Material:
globular aggregates up to 0.1 mm in diameter, composed of very thin fibers
Place of Conservation of Type Material:
collections of the Fersman Mineralogical Museum, Russian Academy of Sciences, Leninskiy Prospekt 18-2, Moscow 119071, Russia, registration number 5944/1
Associated Minerals at Type Locality:
Reference:
Barbaro, Anna; Nestola, Fabrizio; Kasatkin, Anatoly V.; Ardit, Matteo; Rotiroti, Nicola; Škoda, Radek; Agakhanov, Atali A.; Dalconi, Maria Chiara; Castellaro, Fabrizio (2024) Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. The Canadian Journal of Mineralogy and Petrology, 62 (2). doi:10.3749/2300048
Other Language Names for Perchiazziite
Dutch:Perchiazziiet
German:Perchiazziit
Relationship of Perchiazziite to other Species
Member of:
Other Members of Malachite-Rosasite Group:
| Chukanovite | Fe2+2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Glaukosphaerite | (Cu,Ni)2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Kolwezite | CuCo(CO3)(OH)2 | Tric. |
| Malachite | Cu2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Mcguinnessite | (Mg,Cu)2(CO3)(OH)2 | Mon. 2/m |
| Nullaginite | Ni2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Parádsasvárite | Zn2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Pokrovskite | Mg2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Rosasite | (Cu,Zn)2(CO3)(OH)2 | Mon. 2/m : P21/c |
| Zincrosasite | (Zn,Cu)2(CO3)(OH)2 | Mon. |
Related Minerals - Strunz-mindat Grouping
| 5.BA.05 | Azurite | Cu3(CO3)2(OH)2 |
| 5.BA.10 | Mcguinnessite | (Mg,Cu)2(CO3)(OH)2 |
| 5.BA.10 | Zincrosasite | (Zn,Cu)2(CO3)(OH)2 |
| 5.BA.10 | Parádsasvárite | Zn2(CO3)(OH)2 |
| 5.BA.10 | Rosasite | (Cu,Zn)2(CO3)(OH)2 |
| 5.BA.10 | Nullaginite | Ni2(CO3)(OH)2 |
| 5.BA.10 | Georgeite | [Cu(OH)2-x(H2O)x][CO3]x/2 |
| 5.BA.10 | Glaukosphaerite | (Cu,Ni)2(CO3)(OH)2 |
| 5.BA.10 | Pokrovskite | Mg2(CO3)(OH)2 |
| 5.BA.10 | Kolwezite | CuCo(CO3)(OH)2 |
| 5.BA.10 | Chukanovite | Fe2+2(CO3)(OH)2 |
| 5.BA.10 | Malachite | Cu2(CO3)(OH)2 |
| 5.BA.15 | Aurichalcite | (Zn,Cu)5(CO3)2(OH)6 |
| 5.BA.15 | Hydrozincite | Zn5(CO3)2(OH)6 |
| 5.BA.20 | Holdawayite | Mn6(CO3)2(OH)7(Cl,OH) |
| 5.BA.25 | 'UM1977-03-COSiO:CaClH' | Ca10-11(CO3)7(SiO4)Cl1-2(OH)1-2 |
| 5.BA.25 | Defernite | Ca6(CO3)1.58(Si2O7)0.21(OH)7[Cl0.50(OH)0.08(H2O)0.42] |
| 5.BA.30 | Sclarite | Zn7(CO3)2(OH)10 |
| 5.BA.30 | Loseyite | (Mn2+,Zn,Mg)4Zn3(CO3)2(OH)10 |
Other Information
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 Perchiazziite
mindat.org URL:
https://www.mindat.org/min-470782.html
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Please feel free to link to this page.
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References for Perchiazziite
Reference List:
Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2023) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 73. European Journal of Mineralogy, 35 (3). 397-402 doi:10.5194/ejm-35-397-2023
Barbaro, Anna; Nestola, Fabrizio; Kasatkin, Anatoly V.; Ardit, Matteo; Rotiroti, Nicola; Škoda, Radek; Agakhanov, Atali A.; Dalconi, Maria Chiara; Castellaro, Fabrizio (2024) Perchiazziite, Co2(CO3)(OH)2, a New Member of the Rosasite–Malachite Group from the Monte Ramazzo Mine, Italy. The Canadian Journal of Mineralogy and Petrology, 62 (2). doi:10.3749/2300048
Localities for Perchiazziite
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.
Italy (TL) | |
| Bosi et al. (2023) +1 other reference |
