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Peretaite

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Formula:
Ca(SbO)4(SO4)2(OH)2 · 2H2O
System:
Monoclinic
Colour:
Colourless
Lustre:
Vitreous
Hardness:
3½ - 4
Name:
From the type locality.
This page provides mineralogical data about Peretaite.


Classification of Peretaite

Approved
Approval Year:
1979
7.DF.45

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
D : Sulfates (selenates, etc.) with additional anions, with H2O
F : With large and medium-sized cations
31.6.4.1

31 : HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
6 : (AB)5(XO4)2Zq·xH2O
25.8.3

25 : Sulphates
8 : Sulphates of Sb, V, Cr and U

Physical Properties of Peretaite

Vitreous
Diaphaneity (Transparency):
Transparent
Colour:
Colourless
Comment:
Can be pink due to encrustations of valentinite
Hardness (Mohs):
3½ - 4
Hardness (Vickers):
VHN15=170 - 190 kg/mm2
Cleavage:
Perfect
Perfect on {100}
Density:
4.06 g/cm3 (Calculated)
Comment:
Measured > 3.8

Optical Data of Peretaite

Type:
Biaxial (+)
RI values:
nα = 1.841(1) nγ = 1.935(1)
Max Birefringence:
δ = 0.094
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
relatively strong
Comments:
Beta not determined. 2V is very large

Chemical Properties of Peretaite

Formula:
Ca(SbO)4(SO4)2(OH)2 · 2H2O
IMA Formula:
CaSb43+O4(SO4)2(OH)2 · 2H2O
Elements listed in formula:

Crystallography of Peretaite

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/b
Cell Parameters:
a = 24.665(4) Å, b = 5.6006(9) Å, c = 10.185(1) Å
β = 95.98(1)°
Ratio:
a:b:c = 4.404 : 1 : 1.819
Unit Cell Volume:
V 1,399.29 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Divergent sprays of laths, botyroidal, massive.
Twinning:
Very common on {100}

Occurrences of Peretaite

Type Occurrence of Peretaite

Place of Conservation of Type Material:
Smithsonian Museum, Washington DC 148481, 148482

Relationship of Peretaite to other Species

7.DF.05UklonskoviteNaMg(SO4)F · 2H2O
7.DF.10KainiteKMg(SO4)Cl · 3H2O
7.DF.15NatrochalciteNaCu2(SO4)2(OH) · 2H2O
7.DF.20MetasideronatriteNa2Fe(SO4)2(OH) · H2O
7.DF.20SideronatriteNa2Fe(SO4)2(OH) · 3H2O
7.DF.25DespujolsiteCa3Mn4+(SO4)2(OH)6 · 3H2O
7.DF.25FleischeritePb3Ge(SO4)2(OH)6 · 3H2O
7.DF.25SchaurteiteCa3Ge(SO4)2(OH)6 · 4H2O
7.DF.25MallestigitePb3Sb5+(SO4)(AsO4)(OH)6 · 3H2O
7.DF.30Slavíkite(H3O+)3Mg6Fe15(SO4)21(OH)18 · 98H2O
7.DF.35MetavoltineNa6K2FeFe6(SO4)12O2 · 18H2O
7.DF.40LannoniteMg2Ca4Al4(SO4)8F8 · 24H2O
7.DF.40VlodavetsiteAlCa2(SO4)2F2Cl · 4H2O
7.DF.50GordaiteNaZn4(SO4)(OH)6Cl · 6H2O
7.DF.55Clairite(NH4)2Fe3(SO4)4(OH)3 · 3H2O
7.DF.60ArzruniteCu4Pb2(SO4)(OH)4Cl6 · 2H2O (?)
7.DF.65ElyitePb4Cu(SO4)O2(OH)4 · H2O
7.DF.70YecoraiteFe33+Bi5(Te6+O4)2(Te4+O3)O9 · 9H2O
7.DF.75RiomarinaiteBi(SO4)(OH) · H2O
7.DF.80DukeiteBi243+Cr86+O57(OH)6 · 3H2O
7.DF.85XocolatliteCa2Mn24+(Te6+O6)2 · H2O
25.8.1KlebelsbergiteSb4O4(SO4)(OH)2
25.8.2CoquanditeSb6+xO8+x(SO4)(OH)x(H2O)1- x (x = 0.3)
25.8.4CannoniteBi2(SO4)O(OH)2
25.8.5Minasragrite(V4+O)(SO4) · 5H2O
25.8.6Stanleyite(V4+O)(SO4) · 6H2O
25.8.7Redingtonite(Fe2+,Mg,Ni)(Cr,Al)2(SO4)4·22H2O
25.8.8Metauranopilite(UO2)6(SO4)(OH)10 · 5H2O
25.8.9Uranopilite(UO2)6(SO4)O2(OH)6 · 14H2O
25.8.10NatrozippeiteNa5(UO2)8(SO4)4O5(OH)3 · 12H2O
25.8.11ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
25.8.12JohanniteCu(UO2)2(SO4)2(OH)2 · 8H2O
25.8.13MagnesiozippeiteMg(UO2)2(SO4)O2 · 3.5H2O
25.8.14ZinczippeiteZn(UO2)2(SO4)O2 · 3.5H2O

Other Names for Peretaite

Name in Other Languages:
German:Peretait
Spanish:Peretaita

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.

References for Peretaite

Reference List:
American Mineralogist (1980): 65: 930-939.

American Mineralogist (1980): 65: 940-946.

Internet Links for Peretaite

mindat.org URL:
https://www.mindat.org/min-3159.html
Please feel free to link to this page.
Specimens:
The following Peretaite specimens are currently listed for sale on minfind.com.

Localities for Peretaite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
Greece
 
  • Attikí Prefecture (Attica; Attika)
    • Lavrion District (Laurion; Laurium)
Skarpelis, N. and Argyraki, A. (2009): The geology and origin of supergene ores in Lavrion (Attica, Greece). Resource Geology, 59, 1-14.
Italy (TL)
 
  • Tuscany
    • Grosseto Province
      • Scansano
        • Pereta
Cipriani, et al (1980); Am.Min.:65:936(1980); Min.Rec.:15 (1): 19-26.
    • Pisa Province
      • Pomarance
Nannoni R., Capperi M., 1985. I minerali della "Sorgente Solfurea" di Micciano (PI). Quad. Mus. Storia Nat. Livorno, 6: 11-25.; Duchi G. (1983) - Il deposito antimonifero di Micciano(Comune di Pomarance, Pisa)- Atti Società Toscana di Scienze Naturali - Memorie, serie A, 90, pp. 141-163; Bardi, T., Biagioni, C., & Orlandi, P. (2009). Aggiornamento sui minerali della Sorgente Solfurea di Micciano (Pomarance, Pisa, Toscana). MICRO (località), 1/2009, 261-276.
    • Siena Province
      • Chiusdino
Mineralogical Record, 15 (1), 27-36.; Menchetti, S., Batoni, M., Batacchi, C., Borselli, G., Brogi, A., Ceccantini, L., Fassina, B., Marchesini, M., Rossellini, A. & Ruggieri, G. (2015): Le Cetine di Cotorniano. Miniera e minerali. Associazione Micro-Mineralogica Italiana, Cremona, 354 p.
Luxembourg
 
  • Diekirch District
    • Wiltz
      • Goesdorf commune
        • Goesdorf
Simon Philippo analysis (to be published); [Filella M., Philippo S., Belzile N., Chen Y. and Quentel F. (2009) Natural attenuation processes applying to antimony: A study in the abandoned antimony mine in Goesdorf, Luxembourg - Science of the total environment (in press)]
Slovakia
 
  • Banská Bystrica Region
    • Žiar nad Hronom Co.
Majzlan J., Števko M., Lánczoš T. (2016): Soluble secondary minerals of antimony in Pezinok and Kremnica (Slovakia) and the question of mobility or immobility of antimony in mine waters. Environmental Chemistry, 13, 6, 927-935.
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