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Acmonidesite

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About AcmonidesiteHide

Formula:
(NH4,K,Pb)8NaFe2+4(SO4)5Cl8
Crystal System:
Orthorhombic
This page provides mineralogical data about Acmonidesite.


Classification of AcmonidesiteHide

Approved, Pending publication
Approval Year:
2013
7.AC.

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

Chemical Properties of AcmonidesiteHide

Formula:
(NH4,K,Pb)8NaFe2+4(SO4)5Cl8
IMA Formula:
(NH4,K,Pb)8NaFe2+4(SO4)5Cl8

Crystallography of AcmonidesiteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
C2 2 21
Setting:
C2 2 21
Cell Parameters:
a = 9.841(1) Å, b = 19.448(3) Å, c = 17.847(3) Å
Ratio:
a:b:c = 0.506 : 1 : 0.918
Unit Cell V:
3,415.70 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
9.049(37)
8.766(100)
5.178(45)
4.250(42)
3.203(29)
2.926(42)
2.684(32)
1.805(88)
Comments:
From Type Description.

Type Occurrence of AcmonidesiteHide

Place of Conservation of Type Material:
Type material is deposited in the Reference Collection of the Dipartimento di Chimica, University of Milan, Milan, Italy, sample number 2013-02

Synonyms of AcmonidesiteHide

Related Minerals - Nickel-Strunz GroupingHide

7.AC.Aluminopyracmonite(NH4)3Al(SO4)3Trig. 3 : R3
7.AC.05VanthoffiteNa6Mg(SO4)4Mon. 2/m : P21/b
7.AC.08Pyracmonite(NH4)3Fe(SO4)3Trig. 3m : R3c
7.AC.10Efremovite(NH4)2Mg2(SO4)3Iso.
7.AC.10LangbeiniteK2Mg2(SO4)3Iso. 2 3 : P21 3
7.AC.10ManganolangbeiniteK2Mn2(SO4)3Iso. 2 3 : P21 3
7.AC.15YavapaiiteKFe(SO4)2Mon. 2/m : B2/m
7.AC.15EldfelliteNaFe3+(SO4)2Mon. 2/m : B2/m
7.AC.20Godovikovite(NH4)Al(SO4)2Trig. 3 2 : P3 2 1
7.AC.20Sabieite(NH4)Fe3+(SO4)2Trig. 3 2 : P3 2 1
7.AC.25ThénarditeNa2SO4Orth. mmm (2/m 2/m 2/m) : Fddd
7.AC.30MetathénarditeNa2SO4Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.AC.35Aphthitalite(K,Na)3Na(SO4)2Trig.

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 AcmonidesiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Demartin, F., Campostrini, I. and Castellano, C. (2013) Acmonidesite, IMA 2013- 068. CNMNC Newsletter No. 18, December 2013, page 3250; Mineralogical Magazine, 77, 3249-3258.
Williams P A, Hatert F, Pasero M, Mills S J (2013) IMA Commission on new minerals, nomenclature and classification (CNMNC) Newsletter 18. New minerals and nomenclature modifications approved in 2013. Mineralogical Magazine 77, 3249-3258

Internet Links for AcmonidesiteHide

Localities for AcmonidesiteHide

ⓘ - 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.
Italy (TL)
 
  • Sicily
    • Messina Province
      • Eolie Islands (Aeolian Islands)
        • Lipari
          • Vulcano Island
Demartin, F., Campostrini, I. and Castellano, C. (2013) Acmonidesite, IMA 2013- 068. CNMNC Newsletter No. 18, December 2013, page 3250; Mineralogical Magazine, 77, 3249-3258.
Mineral and/or Locality  
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