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Alcantarillaite

A valid IMA mineral species
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Structurally related towalentaite. Unique combination of elements.


Unique Identifiers
IMA Formula:
[Fe3+0.5(H2O)4][CaAs3+2(Fe3+2.5W6+0.5)(AsO4)2O7]

Classification of Alcantarillaite

Mineral Symbols
Colour:
Lemon-yellow

Streak:
Pale yellow
Tenacity:
Brittle
Cleavage:
Perfect
{100}
Fracture:
Irregular/Uneven
Density:
3.06 g/cm3 (Calculated)
Comment:
Calculated based on the empirical formula and single-crystal X-ray diffraction

Optical Data of Alcantarillaite
Surface Relief:
Very High
Dispersion:
r > v, moderate
Comments:
α calculated
X = a, Y = c and Z = b

Chemistry of Alcantarillaite

Crystallography of Alcantarillaite
General Appearance of Type Material:
lemon-yellow fillings together with massive scorodite in fissures and cracks in quartz adjacent to löllingite. It is also found as tiny yellow rosettes lining vugs and as spheroids of ultrathin blades.
Place of Conservation of Type Material:
collections of the (1) Mineralogical State Collection, Theresienstrasse 41, 80333 München, Germany, collection number MSM37182 (holotype); (2) Natural History Museum, University of Oslo, PO Box 1172, Blindern, 0318 Oslo, Norway, collection number KNR44147 (holotype); (3) Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 73568 (cotype)
Associated Minerals at Type Locality:

Other Language Names for Alcantarillaite

Related Minerals -Strunz-mindat GroupingTrig.3m(32/m) :R3m8.DM.ElliottiteNaMgAl3(PO4)2F6 · 9H2OMon. 2/m :B2/m8.DM.Betpakdalite-FeFe[Fe3+2 (H2O)15(OH)2Fe3+(H2O)6][Mo8As2Fe3+3O37]Mon. 2/m :B2/m8.DM.Penriceite[Mg(H2O)6][Na(H2O)2Al3(PO4)2F6] · H2OMon. 2/m :P21/b8.DM.Betpakdalite-CaMg[Ca2(H2O)17Mg(H2O)6][Mo8As2Fe3+3O36(OH)]Mon. 2/m :B2/m8.DM.Chinnerite[Mg(H2O)6]Na(H2O)2Al3(PO4)2F6Mon. 2/m :P2/m8.DM.Sarrochite[Ca4(H2O)38][Mo8P2Fe3+3O37(OH)]Trig.3m(32/m) :P3m18.DM.05EsperanzaiteNaCa2Al2(AsO4)2(OH)F4 · 2H2OMon. 2/m :P21/m8.DM.05MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2OMon. 2/m :P21/m8.DM.10TangdaniteCa2Cu9(AsO4)4(SO4)0.5(OH)9 · 9H2OMon. 2/m :B2/b8.DM.10TyroliteCa2Cu9(AsO4)4(CO3)(OH)8 · 11H2OMon. 2/m8.DM.15Melkovite[Ca2(H2O)15Ca(H2O)6][Mo8P2Fe3+3O36(OH)]Mon. 2/m :B2/m8.DM.15Betpakdalite-NaCa[Na2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O34(OH)3]Mon. 2/m :B2/m8.DM.15Betpakdalite-CaCa[Ca2(H2O)17Ca(H2O)6][Mo6+8As5+2Fe3+3O36(OH)]Mon. 2/m :B2/m8.DM.20Phosphovanadylite-BaBa[V4+4P2O8(OH)8] · 12H2OIso.43m :I43m8.DM.20Phosphovanadylite-CaCa[V4+4P2O12(OH)4] · 12H2OIso.43m :I43m8.DM.25YukoniteCa3Fe3+(AsO4)2(OH)3 · 5H2OOrth.mm28.DM.30UdumineliteCa3Al8(PO4)2O12 · 2H2O8.DM.35Aldermanite[Mg(H2O)6][Na(H2O)2Al3(PO4)2(OH,F)6] · H2OMon. 2/m :P21/b8.DM.35AzovskiteFe3+3(PO4)(OH)6 or near8.DM.35DelvauxiteCaFe4(PO4,SO4)2(OH)8 · 4-6H2O not confirmedAmor.8.DM.40Santafeite(Na,Ca,Sr)12(Mn2+,Fe3+,Al,Mg)8Mn4+8(VO4)16(OH,O)20 · 8H2OOrth.mmm(2/m2/m2/m)8.DM.55TapiaiteCa5Al2(AsO4)4(OH)4 · 12H2OMon.

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  • References for AlcantarillaiteAlcantarilla mine (TL)Miyawaki et al. (2019)+2 other references
     
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