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Natropharmacoalumite

A valid IMA mineral species
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02720550017272471908961.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
09647920017272471902511.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
07212610017398045731694.jpg
Natropharmacoalumite

Gold Hill, Gold Hill Mining District, Tooele County, Utah, USA
02720550017272471908961.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
00257870017271986065484.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
01297310017397207566702.jpg
Natropharmacoalumite

Gold Hill, Gold Hill Mining District, Tooele County, Utah, USA
02720550017272471908961.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
00257870017271986065484.jpg
Natropharmacoalumite

María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
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About NatropharmacoalumiteHide

Formula:
NaAl4(AsO4)3(OH)4 · 4H2O
Colour:
colorless
Lustre:
Adamantine, Vitreous
Hardness:
2½
Specific Gravity:
2.564 (Calculated)
Crystal System:
Isometric
Name:
The new mineral is named natropharmacoalumite, and follows the already established prefix-based nomenclature of the pharmacosiderite supergroup. The name is in allusion to the cation dominance of Na and Al.
Isostructural with:
Pharmacoalumite
Pharmacosiderite Group.


Unique IdentifiersHide

Mindat ID:
40144
Long-form identifier:
mindat:1:1:40144:5

IMA Classification of NatropharmacoalumiteHide

IMA status:
Approved
IMA Formula:
NaAl4(As5+O4)3(OH)4·4H2O
Approval year:
2010

Classification of NatropharmacoalumiteHide

Strunz-mindat (2026):
8.DK.12

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
K : With large and medium-sized cations, (OH, etc.):RO4 > 1:1 and < 2:1
Dana 8th ed.:
42.8.1b.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
8 : (AB)5(XO4)3Zq·xH2O

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
NpalIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of NatropharmacoalumiteHide

Lustre:
Adamantine, Vitreous
Transparency:
Transparent
Colour:
Colorless
Streak:
White
Hardness:
2½ on Mohs scale
Hardness:
VHN100=267 - Vickers
Tenacity:
Brittle
Cleavage:
Imperfect/Fair
imperfect cleavage on {100}.
Fracture:
Irregular/Uneven
Density:
2.564 g/cm3 (Calculated)

Optical Data of NatropharmacoalumiteHide

Type:
Isotropic
RI values:
n = 1.556
Surface Relief:
Low
Internal Reflections:
white
Comments:
assumed to be anomalously biaxial, anomalous birefringence is typical in members of the pharmacosiderite group

Chemistry of NatropharmacoalumiteHide

Mindat Formula:
NaAl4(AsO4)3(OH)4 · 4H2O
Element Weights:
Element% weight
O46.526 %
As32.681 %
Al15.692 %
Na3.343 %
H1.759 %

Calculated from ideal end-member formula.
Elements listed:
Al, As, H, Na, O - search for minerals with similar chemistry

Crystallography of NatropharmacoalumiteHide

Crystal System:
Isometric
Class (H-M):
43m - Hextetrahedral
Space Group:
P43m
Setting:
P43m
Cell Parameters:
a = 7.7280(3) Å
Unit Cell V:
461.53 ų (Calculated from Unit Cell)
Z:
1

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0017883NatropharmacoalumiteRumsey M S, Mills S J, Spratt J (2010) Natropharmacoalumite, NaAl4[(OH)4(AsO4)3]*4H2O, a new mineral of the pharmacosiderite supergroup and the renaming of aluminopharmacosiderite to pharmacoalumite Mineralogical Magazine 74 929-9362010Maria Josefa Gold mine, Rodalquilar, Andalusia region, Spain0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
7.759 Å(100)
4.473 Å(40)
3.870 Å(50)
3.459 Å(6)
3.158 Å(6)
2.736 Å(6)
2.446 Å(9)
2.331 Å(12)
Locality:
María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47d : [Arsenates, antimonates, selenates, bismuthinates]

Type Occurrence of NatropharmacoalumiteHide

Type Locality:
ⓘ María Josefa Mine, Rodalquilar, Níjar, Almería, Andalusia, Spain
General Appearance of Type Material:
intergrown cubic crystals
Place of Conservation of Type Material:
Natural History Museum, London, England, catalog no. BM 2009,161
Geological Setting of Type Material:
Oxidation zone of a gold mine
Associated Minerals at Type Locality:
ChenevixiteJarositeKaoliniteQuartz

Synonyms of NatropharmacoalumiteHide

Other Language Names for NatropharmacoalumiteHide

Relationship of Natropharmacoalumite to other SpeciesHide

Member of:
Pharmacoalumite Group > Pharmacosiderite Supergroup
Other Members of Pharmacoalumite Group:
BariopharmacoalumiteBa0.5Al4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
CalciopharmacoalumiteCa0.5Al4(AsO4)3(OH)4 · 5H2OIso. 43m : P43m
Hydroniumpharmacoalumite(H3O)Al4(AsO4)3(OH)4 · 4.5H2OIso. 43m : P43m
PharmacoalumiteKAl4(AsO4)3(OH)4 · 6.5H2OIso. 43m : P43m

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Natropharmacoalumite associated with NatropharmacosideriteNaFe3+4(AsO4)3(OH)4 · 4H2O
2 photos of Natropharmacoalumite associated with GoethiteFe3+O(OH)
2 photos of Natropharmacoalumite associated with ChenevixiteCu2Fe3+2(AsO4)2(OH)4
2 photos of Natropharmacoalumite associated with QuartzSiO2
1 photo of Natropharmacoalumite associated with CeruleiteCu2Al7(AsO4)4(OH)13 · 11.5H2O

Related Minerals - Strunz-mindat GroupingHide

8.DK.RegeriteKFe6(PO4)4(OH)7(H2O)6 · 4H2OMon. 2/m : P21/b
8.DK.RichelsdorfiteCa2Cu5Sb(AsO4)4(OH)6Cl · 6H2OMon. 2/m : B2/m
8.DK.BimbowrieiteNaMgFe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.PuttapaitePb2Mn2+2ZnCr3+4O2(AsO4)4(OH)6 · 12H2OMon. 2/m : B2/m
8.DK.10ThalliumpharmacosideriteTlFe3+4[(AsO4)3(OH)4] · 4H2OIso. 43m : F43m
8.DK.10NatropharmacosideriteNaFe3+4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
8.DK.10PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2OIso. 43m : P43m
8.DK.10PlumbopharmacosideritePb0.5Fe3+4(AsO4)3(OH)4 · 5H2OIso. 43m : P43m
8.DK.10StrontiopharmacosideriteSr0.5Fe3+4[(AsO4)3(OH)4] · 4H2OTet. 42m : P42m
8.DK.10BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2OTet. 42m : P42m
8.DK.10Hydroniumpharmacosiderite(H3O)Fe3+4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
8.DK.12Hydroniumpharmacoalumite(H3O)Al4(AsO4)3(OH)4 · 4.5H2OIso. 43m : P43m
8.DK.12BariopharmacoalumiteBa0.5Al4(AsO4)3(OH)4 · 4H2OIso. 43m : P43m
8.DK.12PharmacoalumiteKAl4(AsO4)3(OH)4 · 6.5H2OIso. 43m : P43m
8.DK.12CalciopharmacoalumiteCa0.5Al4(AsO4)3(OH)4 · 5H2OIso. 43m : P43m
8.DK.15MatioliiteNaMgAl5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15BurangaiteNaFe2+Al5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15NatrodufréniteNaFe3+Fe3+5(PO4)4O(OH)5(H2O)2Mon. 2/m : B2/b
8.DK.15DufréniteCa0.5Fe2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.15GayiteNaMn2+Fe3+5(PO4)4(OH)6 · 2H2OMon. 2/m : B2/b
8.DK.20KidwelliteNaFe3+9+x(PO4)6(OH)11 · 3H2O, x = 0.33Mon. 2/m : P2/b
8.DK.25Bleasdaleite(Ca,Fe3+)2Cu5(Bi,Cu)(PO4)4(H2O,OH,Cl)13Mon. 2/m : B2/m
8.DK.30Matulaite(Fe3+,Al)Al7(PO4)4(PO3OH)2(OH)8(H2O)8 · 8H2OMon. 2/m
8.DK.35KrasnoviteBa(Al,Mg)(PO4,CO3)(OH)2 · H2OOrth. mmm(2/m2/m2/m)

Fluorescence of NatropharmacoalumiteHide

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.

Internet Links for NatropharmacoalumiteHide

References for NatropharmacoalumiteHide

Localities for NatropharmacoalumiteHide

Showing 9 localities.

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.
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Locality ListHide

- 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). 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Chile
 
  • Tarapacá
    • Iquique Province
      • Iquique
SEM-EDS by Joy Desor
France
 
  • Provence-Alpes-Côte d'Azur
    • Var
      • Toulon
        • Le Pradet
Favreau et al. (2014) +1 other reference
Georges FAVREAU collection & EDX ... +1 other reference
Favreau et al. (2024)
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Agios Konstantinos (Kamariza)
          • Kamariza mines (Kamareza mines)
Möckel (2000)
Italy
 
  • Sardinia
    • South Sardinia Province
Fernando Caboni et al. (2024)
Fernando Caboni et al. (2024)
Spain (TL)
 
  • Andalusia
    • Almería
      • Níjar
        • Rodalquilar
Williams et al. (2010) +1 other reference
USA
 
  • Utah
    • Tooele County
      • Gold Hill Mining District (Clifton Mining District)
        • Gold Hill
Identification based on cubic ...
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