Log InRegister
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreOur ScienceMindat Newsletter [Free Download]Contact Us
Donate to MindatSponsor a PageCorporate SponsorshipSponsored Pages
Learning CenterWhat Is a Mineral?The Most Common Minerals on EarthInformation for EducatorsMindat ArticlesMindat Newsletter [Free Download]The ElementsThe Mineral Quiz
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDMinerals by CountryAlphabetical Mineral IndexAlphabetical Locality SearchMineral Association SearchList of CountriesLocalities Near MePhoto SearchSearch ArticlesSearch GlossaryThe Rock H. Currier Digital LibraryMore Search Options
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
MineralsPetrologyFossilsMeteoritesGeologic Time
Mining CompaniesStatisticsMineral MuseumsClubs & OrganizationsMineral Shows & EventsDevice SettingsTime Machine
Read DiscussionsIdentification Request
Photo SearchPhoto GalleriesSearch by ColourPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Adranosite

A valid IMA mineral species
This page is currently not sponsored. Click here to sponsor this page.
Hide all sections | Show all sections

About AdranositeHide

Formula:
(NH4)4NaAl2(SO4)4Cl(OH)2
Colour:
Colorless, white
Lustre:
Vitreous
Specific Gravity:
2.15
Crystal System:
Tetragonal
Name:
After the Greek name of the ancient fire god Adranos (Latin: Adranus) who,according to legend, lived under Mount Etna before being driven out by Hephaestus (Latin: Vulcan). Adranos was worshipped all over Sicily, but particularly in the town of Adranus, now named Adrano.
The Al analogue of Adranosite-(Fe).

Unique combination of elements. One of a few ammonium-sodium sulfates among acmonidesite, adranosite-(Fe), lecontite, möhnite, and therasiasite.

In the crystal structure there are: (1) NaO4Cl2 tetragonal square bipyramids, that have common Cl in corners; (2) AlO6 octahedra and SO4 tetrahedra that join to form spiral chains parallel to [001].




Unique IdentifiersHide

Mindat ID:
39324
Long-form identifier:
mindat:1:1:39324:3

Similar NamesHide

Adranosite-(Fe)A valid IMA mineral species(NH4)4NaFe23+(SO4)4Cl(OH)2

IMA Classification of AdranositeHide

Approved
IMA Formula:
(N3-H4)4NaAl2(S6+O4)4Cl(OH)2
Approval year:
2008

Classification of AdranositeHide

7.BC.

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
B : Sulfates (selenates, etc.) with additional anions, without H2O
C : With medium-sized and large cations
30.4.5.

30 : ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
4 : Miscellaneous

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

Physical Properties of AdranositeHide

Vitreous
Transparency:
Translucent
Colour:
Colorless, white
Streak:
White
Cleavage:
None Observed
Fracture:
None observed
Density:
2.15(1) g/cm3 (Measured)    2.176 g/cm3 (Calculated)
Comment:
Measured by flotation in a tribromo- methane–trichloromethane mixture. Calculated for the empirical formula.

Optical Data of AdranositeHide

Type:
Uniaxial (-)
RI values:
nω = 1.55(1) nε = 1.54(1)
Max. Birefringence:
δ = 0.010
Based on recorded range of RI values above.

Interference Colours:
The colours simulate birefringence patterns seen in thin section under crossed polars. They do not take into account mineral colouration or opacity.

Michel-Levy Bar The default colours simulate the birefringence range for a 30 µm thin-section thickness. Adjust the slider to simulate a different thickness.

Grain Simulation You can rotate the grain simulation to show how this range might look as you rotated a sample under crossed polars. Each grain retains its interference colour (retardation) while its brightness falls to black at extinction and reaches a maximum between extinction positions.

Surface Relief:
None to Very Low
Relative to Canada balsam mounting medium (n ≈ 1.537).

This shows the grain boundary and Becke line effect under plane-polarised light, based on the contrast between this mineral's average refractive index and the mounting medium. It does not take into account mineral colouration.
In focus
Interference Figure:
This shows the idealized uniaxial interference figure - the conoscopic (convergent-light, Bertrand-lens-in) view, for a grain cut with the optic axis centred and vertical. The coloured rings are isochromatics, computed with the same physics as the Michel-Lévy bar above; the dark cross is the isogyre.

For a genuinely uniaxial mineral viewed this way, that cross stays perfectly stationary if you rotate the stage - unlike a biaxial mineral, where it splits apart on rotation. That invariance is itself the standard diagnostic test for telling uniaxial and biaxial minerals apart at the microscope.

Chemistry of AdranositeHide

Mindat Formula:
(NH4)4NaAl2(SO4)4Cl(OH)2
Element Weights:
Element% weight
O47.773 %
S21.277 %
N9.294 %
Al8.952 %
Cl5.881 %
Na3.814 %
H3.010 %

Calculated from ideal end-member formula.
O
S
N
Al
Cl
Na
H
Common Impurities:
K

Crystallography of AdranositeHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm(4/m2/m2/m) - Ditetragonal Dipyramidal
Space Group:
I41/acd
Cell Parameters:
a = 18.118(3) Å, c = 11.320(3) Å
Ratio:
a:c = 1 : 0.625
Unit Cell V:
3,715.92 ų (Calculated from Unit Cell)
Morphology:
Acicular crystals with pointed terminations. The most common forms are {100}, {110}, and {111}.
Twinning:
None observed.

Crystal StructureHide

Load
Unit Cell | Unit Cell Packed
2x2x2 | 3x3x3 | 4x4x4
Show
Big Balls | Small Balls | Just Balls | Spacefill
Polyhedra Off | Si Polyhedra | All Polyhedra
Remove metal-metal sticks
Display Options
Black Background | White Background
Perspective On | Perspective Off
2D | Stereo | Red-Blue | Red-Cyan
View
CIF File    Best | x | y | z | a | b | c
Rotation
Stop | Start
Labels
Console Off | On | Grey | Yellow
IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0006333AdranositeDemartin F, Gramaccioli C M, Campostrini I (2010) Adranosite, (NH4)4NaAl2(SO4)4Cl(OH)2, a new ammonium sulfate chloride from La Fossa Crater, Vulcano, Aeolian Islands, Italy The Canadian Mineralogist 48 315-3212010La Fossa Crater, Vulcano, Aeolian Islands, Italy0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.398 Å(80)
4.530 Å(86)
3.202 Å(47)
3.020 Å(65)
2.980 Å(100)
2.739 Å(36)
2.265 Å(87)
1.902 Å(44)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
Stage 7: Great Oxidation Event<2.4
45a : [Sulfates, arsenates, selenates, antimonates]
45b : [Other oxidized fumarolic minerals]
Stage 10b: Anthropogenic minerals<10 Ka
55 : Anthropogenic mine minerals

Type Occurrence of AdranositeHide

General Appearance of Type Material:
Colorless to white sprays of prismatic crystals up to 0.3 mm in length.
Place of Conservation of Type Material:
University of Milan, Italy (#2008-06).
Geological Setting of Type Material:
In an active medium-temperature (~250°C) intracrater fumarole on pyroclastic breccia.
Associated Minerals at Type Locality:

Synonyms of AdranositeHide

Other Language Names for AdranositeHide

French:Adranosite
German:Adranosit
Norwegian:Adranositt
Spanish:Adranosita

Common AssociatesHide

Associations Based on Photo Data:
3 photos of Adranosite associated with Brontesite(NH4)3PbCl5
3 photos of Adranosite associated with AluniteKAl3(SO4)2(OH)6
3 photos of Adranosite associated with D'Ansite-(Fe)Na21Fe2+(SO4)10Cl3
2 photos of Adranosite associated with RealgarAs4S4
1 photo of Adranosite associated with Russoite(NH4)ClAs2O3(H2O)0.5
1 photo of Adranosite associated with Argesite(NH4)7Bi3Cl16
1 photo of Adranosite associated with Huizingite-(Al)[(NH4)9(SO4)2][(Al,Fe3+)3(OH)2(H2O)4(SO4)6]
1 photo of Adranosite associated with Demicheleite-(I)BiSI
1 photo of Adranosite associated with Lucabindiite(K,NH4)As4O6(Cl,Br)
1 photo of Adranosite associated with MetaboriteHBO2

Related Minerals - Strunz-mindat GroupingHide

7.BC.ViskontitePb5Cu2(SO4)3(SeO3)(OH)6Orth. mm2 : Pmn21
7.BC.ZincochenitePb4Zn(SO4)2(OH)6Tric. 1 : P1
7.BC.D'Ansite-(Mn)Na21Mn2+(SO4)10Cl3Iso. 43m : I43d
7.BC.D'Ansite-(Fe)Na21Fe2+(SO4)10Cl3Iso. 43m : I43d
7.BC.Acmonidesite(NH4,K,Pb)8NaFe2+4(SO4)5Cl8Orth. 222 : C2221
7.BC.ChromviskontitePb5Cu2(CrO4)3(SeO3)(OH)6Orth. mm2 : Pmn21
7.BC.BackitePb2AlTeO6ClTrig. 32 : P312
7.BC.Adranosite-(Fe)(NH4)4NaFe3+2(SO4)4Cl(OH)2Tet. 4/mmm(4/m2/m2/m) : I41/acd
7.BC.AgaitePb3CuTeO5(OH)2(CO3) Orth. mm2 : Pca21
7.BC.WildcatiteCaFe3+Te6+O5(OH)Trig. 3m(32/m) : P31m
7.BC.HagstromitePb8Cu2+(Te6+O6)2(CO3)Cl4Orth. mmm(2/m2/m2/m) : Ibam
7.BC.05D'AnsiteNa21Mg(SO4)10Cl3Iso. 43m : I43m
7.BC.07'Apatelite'Fe3(SO4)2(OH)5 · 0.5H2O
7.BC.07'Unnamed (Ba-Fe Vanadate)'Ba, Fe, V, O, H
7.BC.10JarositeKFe3+3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10DorallchariteTlFe3+3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10ArgentojarositeAgFe3+3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10NatroaluniteNaAl3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10NatrojarositeNaFe3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10Beaverite-(Cu)Pb(Fe3+2Cu)(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10Beaverite-(Zn)Pb(Fe3+2Zn)(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10WalthieriteBa0.5Al3(SO4)2(OH)6Trig.
7.BC.10HuangiteCa0.5Al3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10'Natroalunite-2c'(Na,Ca0.5,K)Al3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10AluniteKAl3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10PlumbojarositePb0.5Fe3+3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10Karlseifertite Pb(Ga2Ge)(AsO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10Hydroniumjarosite(H3O)Fe3+3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10Ammonioalunite(NH4)Al3(SO4)2(OH)6Trig.
7.BC.10Ammoniojarosite(NH4)Fe3+3(SO4)2(OH)6Trig. 3m : R3m
7.BC.10OsarizawaitePb(Al2Cu2+)(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.10Schlossmacherite(H3O)Al3(SO4)2(OH)6Trig. 3m(32/m) : R3m
7.BC.15Ye'elimiteCa4Al6(SO4)O12Iso. 432 : I4132
7.BC.20NabokoiteKCu7(SO4)5(Te4+O3)OClTet. 4/mmm(4/m2/m2/m) : P4/ncc
7.BC.20PuniniteNa2Cu3O(SO4)3Mon. 2/m : B2/b
7.BC.20AtlasoviteK(BiO)Cu6Fe3+(SO4)5O3ClTet. 4/mmm(4/m2/m2/m) : P4/ncc
7.BC.25ChlorothioniteK2Cu(SO4)Cl2Orth. mmm(2/m2/m2/m) : Pnma
7.BC.30EuchlorineKNaCu3(SO4)3OMon. 2/m
7.BC.30FedotoviteK2Cu3(SO4)3OMon. 2/m : B2/b
7.BC.35KamchatkiteKCu3(SO4)2OClOrth. mmm(2/m2/m2/m) : Pnma
7.BC.40PiypiteK4Cu4O2(SO4)4 · (Na,Cu)ClTet. 4 : I4
7.BC.45AlumoklyuchevskiteK3Cu3(Al,Fe3+)(SO4)4O2Tric. 1 : P1
7.BC.45BelousoviteKZn(SO4)ClMon. 2/m : P21/c
7.BC.45KlyuchevskiteK3Cu3(Fe3+,Al)(SO4)4O2Mon. 2
7.BC.47MülleritePb2Fe3+(Te6+O6)ClTrig. 32 : P3112
7.BC.50CaledonitePb5Cu2(SO4)3(CO3)(OH)6Orth. mm2 : Pmn21
7.BC.50ElasmochloiteNa3Cu6BiO4(SO4)5Mon. 2/m : P21/c
7.BC.52Eleomelanite(K2Pb)Cu4O2(SO4)4Mon. 2/m : P21/c
7.BC.55FalgariteK4(VO)3(SO4)5Mon. 2/m : B2/b
7.BC.55WherryitePb7Cu2(SO4)4(SiO4)2(OH)2Mon. 2/m : B2/m
7.BC.57KrasheninnikoviteKNa2CaMg(SO4)3FHex. 6/mmm(6/m2/m2/m) : P63/mcm
7.BC.60WulffiteK3NaCu4O2(SO4)4Orth. mm2
7.BC.60ParawulffiteK5Na3Cu8O4(SO4)8Mon. 2/m : P2/b
7.BC.60MammothitePb6Cu4AlSb5+O2(OH)16Cl4(SO4)2Mon. 2 : B2
7.BC.62ShuvaloviteK2(Ca2Na)(SO4)3FOrth. mmm(2/m2/m2/m) : Pnma
7.BC.65SaccoiteCa2Mn3+2F(OH)8 · 0.5(SO4)Tet. 4/mmm(4/m2/m2/m) : P4/ncc
7.BC.65LinaritePbCu(SO4)(OH)2Mon. 2/m : P21/m
7.BC.65Therasiaite(NH4)3KNa2Fe2+Fe3+(SO4)3Cl5Mon. m : Bb
7.BC.65FranksousaitePbCu(Se6+O4)(OH)2Mon. 2/m : P21/m
7.BC.65MunakataitePb2Cu2(Se4+O3)(SO4)(OH)4Mon. 2/m : P21/m
7.BC.65SchmiederitePb2Cu2(Se6+O4)(Se4+O3)(OH)4Mon. 2/m : P21/m
7.BC.70ChenitePb4Cu(SO4)2(OH)6Tric. 1 : P1
7.BC.75KrivovichevitePb3Al(OH)6(SO4)(OH)Trig. 3m : R3c
7.BC.80AnhydrokainiteKMg(SO4)Cl

Fluorescence of AdranositeHide

Not fluorescent.

Other InformationHide

Notes:
The mineral is not hygroscopic and is stable in open air.
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 AdranositeHide

References for AdranositeHide

Localities for AdranositeHide

Showing 5 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.
Hide all sections | Show all sections

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.
Germany
 
  • North Rhine-Westphalia
    • Cologne
      • Aachen
        • Alsdorf
Witzke et al. (2015)
Hungary
 
  • Baranya County
    • Pécs District
Szabó et al. (2015)
Italy
 
  • Campania
    • Metropolitan City of Naples
      • Pozzuoli
        • Solfatara di Pozzuoli
Russo et al. (2017)
  • Sicily
    • Metropolitan City of Messina
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
Demartin et al. (2010)
USA
 
  • Ohio
    • Huron County
      • Huron River
R. Peter Richards Collection
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 4, 2026 02:29:14 Page updated: September 21, 2026 05:13:34
Go to top of page