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Adelite

A valid IMA mineral species - grandfathered
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About AdeliteHide

Formula:
CaMg(AsO4)(OH)
Colour:
Colourless, white, grey, bluish grey, yellowish grey, yellow, pale green, pinkish brown, brown
Lustre:
Vitreous, Greasy
Hardness:
5
Specific Gravity:
3.71 - 3.76
Crystal System:
Orthorhombic
Name:
Named by Hjalmar Sjögren in 1891 from the Greek ÎŹÎŽÎ·Î»ÎżÏ‚ for "adelos," "obscure" or "indistinct", in reference to its lack of transparency.
Isostructural with:
Adelite-Descloizite Group. Adelite-Gottlobite Series.
The arsenate analogue of Gottlobite.

Crystal structure details (Effenberger et al., 2002): M2 site is Mg; there are (M2)O6 octahedra that share edges to form chains; the chains are parallel to [001]; two chains are linked via a tetrahedron to form 3D framework; in the framework there are cavities where the M1 site is located; in adelite it is Ca, with tetragonal antiprism coordination (slightly distorted).

See also the hydrated analogue camgasite.


Unique IdentifiersHide

Mindat ID:
23
Long-form identifier:
mindat:1:1:23:5
GUID
(UUID V4):
be8d5008-5334-4cbf-badb-d863f7194c04

IMA Classification of AdeliteHide

Classification of AdeliteHide

8.BH.35

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
H : With medium-sized and large cations, (OH,etc.):RO4 = 1:1
41.5.1.1

41 : ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
5 : (AB)2(XO4)Zq
20.2.17

20 : Arsenates (also arsenates with phosphate, but without other anions)
2 : Arsenates of Be, Mg, Ca or Ba

Mineral SymbolsHide

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

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

Physical Properties of AdeliteHide

Vitreous, Greasy
Transparency:
Transparent, Translucent
Comment:
LĂ„ngban: vitrous to greasy
Colour:
Colourless, white, grey, bluish grey, yellowish grey, yellow, pale green, pinkish brown, brown
Comment:
Colourless in transmitted light.
Streak:
White
Hardness:
Tenacity:
Brittle
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Conchoidal
Density:
3.71 - 3.76 g/cm3 (Measured)    3.78 g/cm3 (Calculated)

Optical Data of AdeliteHide

Type:
Biaxial (+)
RI values:
nα = 1.712 nβ = 1.721 nγ = 1.731
2V:
Measured: 68° to 90°
Birefringence:
0.019
Max Birefringence:
δ = 0.019
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
High
Dispersion:
r
Optical Extinction:
Parallel. XYZ = acb
Pleochroism:
Non-pleochroic

Chemistry of AdeliteHide

Mindat Formula:
CaMg(AsO4)(OH)
Common Impurities:
Pb,Mn,Na,Cu,Ba

Crystallography of AdeliteHide

Crystal System:
Orthorhombic
Class (H-M):
2 2 2 - Disphenoidal
Space Group:
P21 21 21
Setting:
P21 21 21
Cell Parameters:
a = 7.43 Å, b = 8.85 Å, c = 5.88 Å
Ratio:
a:b:c = 0.84 : 1 : 0.664
Unit Cell V:
386.64 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Crystals elongated [100]. Commonly massive.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0012643AdeliteEffenberger H, Krause W, Bernhardt H J (2002) Structural investigations of adelite and cobaltaustinite, two members of the adelite-descloizite group Experimental Mineralogy, Petrology and Geochemistry Abstract Volume 9 30-302002Langban, Sweden0293
CIF Raw Data - click here to close

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.96 Å(60)
4.48 Å(10)
4.13 Å(70)
3.47 Å(20)
3.16 Å(100)
2.98 Å(60)
2.78 Å(60)
2.64 Å(40)
2.59 Å(70)
2.51 Å(60)
2.33 Å(70)
2.03 Å(20)
1.872 Å(20)
1.819 Å(20)
1.751 Å(10)
1.724 Å(10)
1.671 Å(10)
1.609 Å(70)
1.582 Å(10)
1.505 Å(20)
1.485 Å(10)
1.349 Å(10)
1.307 Å(30)
1.220 Å(30)
Comments:
ICDD 24-208. Langban, Sweden. Data from Canadian Mineralogist 18: 191 (1980)

Geological EnvironmentHide

Paragenetic Mode(s):
Paragenetic ModeEarliest Age (Ga)
High-𝑇 alteration and/or metamorphism
32 : Ba/Mn/Pb/Zn deposits, including metamorphic deposits
Stage 7: Great Oxidation Event<2.4
47a : [Near-surface hydration of prior minerals]
47d : [Arsenates, antimonates, selenates, bismuthinates]
Geological Setting:
On willemite-franklinite ore from a metamorphosed stratiform zinc orebody (Franklin, New Jersey, USA).

Type Occurrence of AdeliteHide

Place of Conservation of Type Material:
Swedish Museum of Natural History, Stockholm, Sweden, number HS 6413.
Geological Setting of Type Material:
A rare mineral in a metamorphosed Fe–Mn orebody
Associated Minerals at Type Locality:
Reference:
Sjögren, H. (1891) Bidrag til Sveriges mineralogi. 3. Adelit, ett basiskt arseniat frÄn Nordmarken och LÄngban. Geologiska Föreningen i Stockholm Förhandlingar: 13: 781-796.

Other Language Names for AdeliteHide

German:Adelit
Italian:Adelite
Latvian:Adelīts
Spanish:Adelita

Varieties of AdeliteHide

Relationship of Adelite to other SpeciesHide

Other Members of this group:
ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
ConichalciteCaCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
Duftite-alphaPbCu(AsO4)(OH)
GottlobiteCaMg(VO4)(OH)Orth. 2 2 2 : P21 21 21
HermannroseiteCaCu(PO4)(OH)Orth. 2 2 2 : P21 21 21
MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21
PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
Unnamed (Pb-analogue of Nickelaustinite)PbNi(AsO4)(OH)
VuagnatiteCaAl(SiO4)(OH)Orth. 2 2 2 : P21 21 21
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
27 photos of Adelite associated with FrankliniteZn2+Fe3+2O4
25 photos of Adelite associated with WillemiteZn2SiO4
19 photos of Adelite associated with ZinciteZnO
18 photos of Adelite associated with CalciteCaCO3
8 photos of Adelite associated with MagnetiteFe2+Fe3+2O4
8 photos of Adelite associated with MagnussoniteMn2+10(As3+O3)6(OH,Cl)2
7 photos of Adelite associated with HausmanniteMn2+Mn3+2O4
6 photos of Adelite associated with SphaleriteZnS
4 photos of Adelite associated with Chlorophoenicite(Mn,Mg)3Zn2(AsO4)(OH,O)6
3 photos of Adelite associated with DolomiteCaMg(CO3)2

Related Minerals - Strunz-mindat GroupingHide

8.BH.CrimsonitePbFe3+2(PO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.ReznitskyiteCaMg(VO4)FMon. 2/m : B2/b
8.BH.CuprozheshengitePb4CuZn2(AsO4)2(PO4)2(OH)2Tric. 1 : P1
8.BH.ZheshengitePb4ZnZn2(AsO4)2(PO4)2(OH)2Tric. 1 : P1
8.BH.PeterchiniteZn3Zn2(OH)6As[O3(OH)3]Mon. 2/m : B2/m
8.BH.05ThadeuiteCa(Mg,Fe2+)3(PO4)2(OH,F)2Orth. 2 2 2 : C2 2 21
8.BH.10DurangiteNaAl(AsO4)FMon. 2/m : B2/b
8.BH.10IsokiteCaMg(PO4)FMon. 2/m : B2/b
8.BH.10LacroixiteNaAl(PO4)FMon. 2/m : B2/b
8.BH.10MaxwelliteNaFe3+(AsO4)FMon. 2/m : P2/m
8.BH.10PanasqueiraiteCaMg(PO4)(OH,F)Mon.
8.BH.10KononoviteNaMg(SO4)FMon. 2/m : B2/b
8.BH.10ArsenatrotitaniteNaTi(AsO4)OMon. 2/m : B2/b
8.BH.15DrugmanitePb2(Fe3+,Al)(PO4)(PO3OH)(OH)2Mon. 2/m : P21/b
8.BH.20Bjarebyite(Ba,Sr)(Mn2+,Fe2+,Mg)2Al2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20CirroliteCa3Al2(PO4)3(OH)3 (?)
8.BH.20KulaniteBa(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PenikisiteBa(Mg,Fe2+,Ca)2Al2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PerloffiteBa(Mn2+,Fe2+)2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20JohntomaiteBaFe2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20Bjarebyite Group
8.BH.20StrontioperloffiteSrMn2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.20PlumboperloffitePbMn2+2Fe3+2(PO4)3(OH)3Mon. 2/m : P21/m
8.BH.25Bertossaite(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4Orth. mmm (2/m 2/m 2/m)
8.BH.25Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4Orth. mmm (2/m 2/m 2/m)
8.BH.25NatropalermoiteNa2SrAl4(PO4)4(OH)4Orth. mmm (2/m 2/m 2/m)
8.BH.30CarminitePbFe3+2(AsO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.30SewarditeCaFe3+2(AsO4)2(OH)2Orth. mmm (2/m 2/m 2/m) : Cccm
8.BH.35ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35ConichalciteCaCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35GabrielsonitePbFe3+(As3+O3)OOrth. mm2 : Pmc21
8.BH.35NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35Duftite-alphaPbCu(AsO4)(OH)
8.BH.35GottlobiteCaMg(VO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.35HermannroseiteCaCu(PO4)(OH)Orth. 2 2 2 : P21 21 21
8.BH.40ČechitePbFe2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m)
8.BH.40DescloizitePbZn(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40MottramitePbCu(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40PyrobelonitePbMn2+(VO4)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
8.BH.40Khorixasite(Bi0.67◻0.33)Cu(VO4)(OH)Mon. 2/m : P2/m
8.BH.45BayldonitePbCu3(AsO4)2(OH)2Mon. 2/m : B2/b
8.BH.45VésigniéiteBaCu3(VO4)2(OH)2Mon. 2/m : B2/m
8.BH.50PaganoiteNiBi(AsO4)OTric. 1 : P1
8.BH.55HarrisoniteCa(Fe2+,Mg)6(PO4)2(SiO4)2Trig. 3m (3 2/m) : R3m
8.BH.55JagoweriteBaAl2(PO4)2(OH)2Tric.
8.BH.60AttakoliteCaMn2+Al4(SiO3OH)(PO4)3(OH)4Mon. 2/m : B2/m
8.BH.65LeningraditePbCu3(VO4)2ClOrth. mmm (2/m 2/m 2/m) : Ibam
8.BH.70KatiarsiteKTiO(AsO4)Orth. mm2 : Pna21
8.BH.70YurgensoniteK2SnTiO2(AsO4)2Orth. mm2 : Pna21
8.BH.75MelanarsiteK3Cu7Fe3+O4(AsO4)4Mon. 2/m : B2/b
8.BH.80MoraskoiteNa2Mg(PO4)FOrth. mmm (2/m 2/m 2/m) : Pbcn
8.BH.80EvseeviteNa2Mg(AsO4)FOrth. mmm (2/m 2/m 2/m) : Pbcn
8.BH.85PiccoliiteNaCaMn3+2(AsO4)2O(OH)Orth. mmm (2/m 2/m 2/m) : Pbcm

Fluorescence of AdeliteHide

Not fluorescent.

Other InformationHide

Notes:
Soluble in dilute acids.
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 AdeliteHide

References for AdeliteHide

Reference List:

Localities for AdeliteHide

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.

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.
Algeria
 
  • Skikda Province
    • Azzaba District
      • Es Sebt
Byramjee R.and Meindre M. (1956)
Germany
 
  • Lower Saxony
    • Goslar District
      • Braunlage
  • Thuringia
    • Gotha District
      • Friedrichroda
        • Gottlob Hill
Mandarino (2001)
Italy
 
  • Piedmont
    • Cuneo Province
      • Canosio
        • Vallone della Valletta
www.socgeol.it (n.d.) +3 other references
North Macedonia
 
  • Veles Municipality
    • NeĆŸilovo
Ermolaeva et al. (2019)
Sweden
 
  • VĂ€rmland County
    • Filipstad
      • LĂ„ngban Ore District
Holtstam et al. (1999)
Sjögren (1891)
Blatter (2003)
+2 other references
Adolfsson (1979)
Strand (2014)
      • Nordmark mining district
        • Jakobsberg ore field
RRUFF ID: R060687 +2 other references
Gatedal (n.d.) +1 other reference
Sjögren (1891) +1 other reference
Palache et al. (1951)
      • Persberg ore district
        • Pajsberg
Nysten (2004)
USA
 
  • New Jersey
    • Sussex County
      • Ogdensburg
        • Sterling Hill
Mineralogical Record:13:37 +1 other reference
  • Utah
    • Tooele County
      • Mercur Mining District
Mineral News: 19 (12)
 
Mineral and/or Locality  
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