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Calciopetersite

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Formula:
CaCu6(PO4)2(PO3OH)(OH)6 · 3H2O
Colour:
Olive green
Lustre:
Vitreous
Specific Gravity:
3.332 (Calculated)
Crystal System:
Hexagonal
Member of:
Name:
For the chemical composition and its relationship with Petersite.
Mixite Group.
The phosphate analogue of zálesíite, and the Ca analogue of petersite-(Y).


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Classification of CalciopetersiteHide

Approved
Approval Year:
2001
8.DL.15

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
L : With large and medium-sized cations, (OH, etc.):RO4 = 2:1

Physical Properties of CalciopetersiteHide

Vitreous
Colour:
Olive green
Streak:
Light olive green
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven
Density:
3.332 g/cm3 (Calculated)

Optical Data of CalciopetersiteHide

Type:
Uniaxial (+)
RI values:
nω = 1.674 nε = 1.750
Max Birefringence:
δ = 0.076
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Comments:
O light green with yellowish tint, E green

Chemical Properties of CalciopetersiteHide

Formula:
CaCu6(PO4)2(PO3OH)(OH)6 · 3H2O
IMA Formula:
Cu2+6Ca(PO4)2(PO3OH)(OH)6 · 3H2O

Crystallography of CalciopetersiteHide

Crystal System:
Hexagonal
Class (H-M):
6/m - Dipyramidal
Space Group:
P63/m
Cell Parameters:
a = 13.284 Å, c = 5.902 Å
Ratio:
a:c = 1 : 0.444
Unit Cell V:
902 ų
Z:
2

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
11.51 (100)
4.346 (88)
4.140 (46)
3.837 (38)
3.321 (44)
2.888 (53)
2.877 (37)
2.510 (37)
Comments:
Format: d/Å I/% (hkl)

Type Occurrence of CalciopetersiteHide

General Appearance of Type Material:
minute acicular crystals with a hexagonal outline, up to 0.4 mm in length and 5–20 µm in width, clustered in fine radiating sprays up to 0.1 × 0.5 mm in size
Geological Setting of Type Material:
cavities in weathered, copper sulphide bearing quartz veins
Associated Minerals at Type Locality:

Synonyms of CalciopetersiteHide

Other Language Names for CalciopetersiteHide

Simplified Chinese:羟水磷钙铜石
Traditional Chinese:羥水磷鈣銅石

Relationship of Calciopetersite to other SpeciesHide

Member of:
Other Members of this group:
Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Agardite-(Dy)(Dy,La)Cu6(AsO4)3(OH)6 · 3H2OHex.
Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m
Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
MixiteBiCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
Petersite-(Ce)Cu6Ce(PO4)3(OH)6·3H2OHex. 6/m : P63/m
Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2OHex.
Plumboagardite(Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2OHex.

Common AssociatesHide

Associated Minerals Based on Photo Data:
Chrysocolla6 photos of Calciopetersite associated with Chrysocolla on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DL.05FoggiteCaAl(PO4)(OH)2 · H2OOrth.
8.DL.10CyriloviteNaFe3+3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.10Millisite(Na,K)CaAl6(PO4)4(OH)9 · 3H2OTet.
8.DL.10WarditeNaAl3(PO4)2(OH)4 · 2H2OTet. 4 2 2 : P41 21 2
8.DL.15Agardite-(Nd)NdCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(Ce)CeCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m
8.DL.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
8.DL.15MixiteBiCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.15Petersite-(Y)(Y,Ce,Nd)Cu6(PO4)3(OH)6 · 3H2OHex.
8.DL.15ZálesíiteCaCu6(AsO4)2(AsO3OH)(OH)6 · 3H2OHex.
8.DL.15Plumboagardite(Pb,REE,Ca)Cu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
8.DL.20CheremnykhitePb3Zn3(VO4)2(TeO6)Orth.
8.DL.20DugganitePb3Zn3(AsO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20KuksitePb3Zn3(PO4)2(TeO6)Trig. 3 2 : P3 2 1
8.DL.20WallkilldelliteCa2Mn2+3(AsO4)2(OH)4 · 9H2OHex.
8.DL.20Wallkilldellite-(Fe)(Ca,Cu)4Fe2+6(AsO4,SiO4)4(OH,O)8 · 18H2OHex.
8.DL.25AngastoniteCaMgAl2(PO4)2(OH)4 · 7H2OTric. 1 : P1

Fluorescence of CalciopetersiteHide

Other InformationHide

Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for CalciopetersiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kolitsch, Uwe (1997): Das Ca-Analogon von Petersit und einige weitere Neufunde aus dem sächsisch-böhmischen Erzgebirge und dem Vogtland. Mineralien-Welt 8 (4), 17-20.
Sejkora, J., Novotný, P., Novák, M., Šrein, V., Berlepsch, P. (2005): Calciopetersite from Domašov nad Bystricí, northern Moravia, Czech Republic, a new mineral species of the mixite group. Canadian Mineralogist, 43, 1393-1400.
Biagioni, C., Bonaccorsi, E., Orlandi, P. (2011): Occurrence and crystal structure of calciopetersite from Monte Beni (Firenzuola, Florence, Tuscany, Italy). Atti della Società Toscana di Scienze Naturali, Memorie, 116, 17-22.

Internet Links for CalciopetersiteHide

Localities for CalciopetersiteHide

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

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for 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 (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Czech Republic (TL)
 
  • Moravia (Mähren; Maehren)
    • Olomouc Region
      • Šternberk (Sternberg)
J. Sejkora et al.: Canadian Mineralogist 43:1393-1400 (2005); Jiří Čejka, Jiří Sejkora, Jakub Plášil, Eloise C. Keeffe, Silmarilly Bahfenne, Sara J. Palmer and Ray L. Frost (2011): A Raman and infrared spectroscopic study of Ca2+ dominant members of the mixite group from the Czech Republic. Journal of Raman Spectroscopy 42, 1154-1159.
Germany
 
  • Saxony
    • Erzgebirge
      • Clausnitz - Sayda District
        • Sayda
Kolitsch, U. (1997): Das Ca-Analogon von Petersit und einige weitere Neufunde aus dem sächsisch-böhmischen Erzgebirge und dem Vogtland. Mineralien-Welt 8 (4), 17-20.
Italy
 
  • Tuscany
    • Florence Province
      • Firenzuola
        • Futa Pass area
          • Monte Beni
Biagioni, C., Bonaccorsi, E., Orlandi, P. (2011): Occurrence and crystal structure of calciopetersite from Monte Beni (Firenzuola, Florence, Tuscany, Italy). Atti della Società Toscana di Scienze Naturali, Memorie, 116, 17-22.; Bardi, T., Becucci, A. & Biagioni, C. (2012): Monte Beni - I minerali dell'ex cava Fantoni (Pietramala, Firenzuola, Firenze). MICRO, 3/2012, 98-109.
Mineral and/or Locality  
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