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Adelite

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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 άδηλος 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.


Classification of AdeliteHide

Approved, 'Grandfathered' (first described prior to 1959)
First Published:
1891
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

Physical Properties of AdeliteHide

Vitreous, Greasy
Transparency:
Transparent, Translucent
Comment:
Långban: 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

Chemical Properties of AdeliteHide

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.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.96 (60)
4.13 (70)
3.16 (100)
2.98 (60)
2.78 (60)
2.59 (70)
2.33 (70)
1.609 (70)
Comments:
Canadian Mineralogist 18: 191 (1980)

Type Occurrence of AdeliteHide

Geological Setting of Type Material:
A rare mineral in a metamorphosed Fe–Mn orebody
Associated Minerals at Type Locality:

Other Language Names for AdeliteHide

German:Adelit
Italian:Adelite
Latvian:Adelīts
Russian:Аделит
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)
GabrielsonitePbFe3+(As3+O3)OOrth. mm2 : Pmc21
GottlobiteCaMg(VO4,AsO4)(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
VuagnatiteCaAl(SiO4)(OH)Orth.
Forms a series with:

Common AssociatesHide

AllactiteMn2+7(AsO4)2(OH)8
BaryteBaSO4
FrankliniteZn2+Fe3+2O4
HausmanniteMn2+Mn3+2O4
KraissliteZn3(Mn,Mg)25(Fe3+,Al)(As3+O3)2[(Si,As5+)O4]10(OH)16
MagnetiteFe2+Fe3+2O4
MagnetiteFe2+Fe3+2O4
RhodochrositeMnCO3
SphaleriteZnS
WillemiteZn2SiO4
ZinciteZnO
Associated Minerals Based on Photo Data:
Franklinite12 photos of Adelite associated with Franklinite on mindat.org.
Willemite11 photos of Adelite associated with Willemite on mindat.org.
Zincite6 photos of Adelite associated with Zincite on mindat.org.
Calcite6 photos of Adelite associated with Calcite on mindat.org.
Sphalerite6 photos of Adelite associated with Sphalerite on mindat.org.
Hausmannite5 photos of Adelite associated with Hausmannite on mindat.org.
Magnussonite2 photos of Adelite associated with Magnussonite on mindat.org.
Magnetite2 photos of Adelite associated with Magnetite on mindat.org.
Maxwellite1 photo of Adelite associated with Maxwellite on mindat.org.
Iwakiite1 photo of Adelite associated with Iwakiite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

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.
8.BH.10PanasqueiraiteCaMg(PO4)(OH,F)Mon.
8.BH.10TilasiteCaMg(AsO4)FMon. m : Bb
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.
8.BH.20CirroliteCa3Al2(PO4)3(OH)3 (?)
8.BH.20KulaniteBa(Fe2+,Mn2+,Mg)2(Al,Fe3+)2(PO4)3(OH)3Mon.
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.25Bertossaite(Li,Na)2(Ca,Fe2+,Mn2+)Al4(PO4)4(OH,F)4Orth.
8.BH.25Palermoite(Li,Na)2(Sr,Ca)Al4(PO4)4(OH)4Orth.
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.35GottlobiteCaMg(VO4,AsO4)(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.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.
8.BH.55JagoweriteBaAl2(PO4)2(OH)2Tric.
8.BH.60Attakolite(Ca,Sr)Mn(Al,Fe)4(HPO4,PO4)3(SiO4,PO4)(OH)4Mon. 2/m : B2/m
8.BH.65LeningraditePbCu3(VO4)2ClOrth. mmm (2/m 2/m 2/m) : Ibam

Related Minerals - Dana Grouping (8th Ed.)Hide

41.5.1.2ConichalciteCaCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.3AustiniteCaZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.4DuftitePbCu(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.5GabrielsonitePbFe3+(As3+O3)OOrth. mm2 : Pmc21
41.5.1.6TangeiteCaCu(VO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.7NickelaustiniteCaNi(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.8CobaltaustiniteCaCo(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.9ArsendescloizitePbZn(AsO4)(OH)Orth. 2 2 2 : P21 21 21
41.5.1.11HermannroseiteCaCu(PO4)(OH)Orth. 2 2 2 : P21 21 21

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.2.1BearsiteBe2(AsO4)(OH) · 4H2OMon.
20.2.2BrassiteMg(HAsO4) · 4H2OOrth. mmm (2/m 2/m 2/m) : Pbca
20.2.3RößleriteMg(HAsO4) · 7H2OMon. 2/m : B2/b
20.2.4HörnesiteMg3(AsO4)2 · 8H2OMon. 2/m : B2/m
20.2.5WeiliteCa(HAsO4)Tric. 1 : P1
20.2.6JohnbaumiteCa5(AsO4)3OHHex. 6/m : P63/m
20.2.7HaidingeriteCaHAsO4 · H2OOrth. mmm (2/m 2/m 2/m) : Pbcn
20.2.8PharmacoliteCa(HAsO4) · 2H2OMon. m
20.2.9SainfelditeCa5(AsO4)2(AsO3OH)2 · 4H2OMon. 2/m : B2/b
20.2.10VladimiriteCa4(AsO4)2(AsO3OH) · 4H2OMon. 2/m : P21/b
20.2.11GuériniteCa5(AsO4)2(HAsO4)2 · 9H2OMon. 2/m : P21/b
20.2.12FerrarisiteCa5(AsO4)2(HAsO4)2 · 9H2OTric. 1 : P1
20.2.13RauenthaliteCa3(AsO4)2 · 10H2OTric. 1 : P1
20.2.14PhaunouxiteCa3(AsO4)2 · 11H2OTric.
20.2.15McneariteNaCa5(AsO4)(HAsO4)4 · 4H2OTric.
20.2.16BergslagiteCaBeAsO4(OH)Mon. 2/m : P21/b
20.2.18TalmessiteCa2Mg(AsO4)2 · 2H2OTric.
20.2.19IrhtemiteCa4Mg(AsO4)2(HAsO4)2 · 4H2OMon.
20.2.20CamgasiteCaMg(AsO4)(OH) · 5H2OMon. 2/m : P21/m
20.2.21PicropharmacoliteCa4Mg(AsO4)2(HAsO4)2 · 11H2OTric. 1 : P1
20.2.22BariopharmacosideriteBa0.5Fe3+4(AsO4)3(OH)4 · 5H2OTet. 4 2m : P4 2m

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.

References for AdeliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Sjögren, H. (1884) Om manganarseniaternas från Nordmarken förekomstsätt och paragenesis. Geologiska Föreningen i Stockholm Förhandlingar: 7: 407-416. [as "ett egedomligt berzeliitartadt mineral", with analyis by C.H. Lundström]
Sjögren, H. (1891) Bidrag til Sveriges mineralogi. 3. Adelit, ett basiskt arseniat från Nordmarken och Långban. Geologiska Föreningen i Stockholm Förhandlingar: 13: 781-796.
Sjögren (1893) Bull. Geol. Inst. Upsala: 1: 56.
Larsen, E.S. (1921) The Microscopic Determination of the Nonopaque Minerals, First edition, USGS Bulletin 679: 35.
Aminoff (1933) Kungl. Svenska Vetenskap., Handl. [3]: 11, no. 4: 24.
Hägele (1939) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart, Beil.-Bd.: 75: 101.
Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 804-806.
Arkiv för Mineralogi och Geologi (1968): 4: 499. [Recent / Best, Chemistry, Optics]
Jambor, J.L., Owens, D.R., Dutrizac, J.E. (1980) Solid solution in the adelite group of arsenates. The Canadian Mineralogist: 18: 191.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 3.
Effenberger, H., Krause, W., Bernhardt, H.-J. (2002) Structural investigation of adelite and cobaltaustinite, two members of the Adelite-descloizite Group. EMPG IX, Ninth International Symposium on Experimental Mineralogy, Petrology and Geochemistry, Zürich, Switzerland, 24.-27.3, Book of Abstracts (2002): 30.
Anthony, J.W., Bideaux, R.A., Bladh, K.W. and Nichols, M.C., Eds. Handbook of Mineralogy, Mineralogical Society of America, Chantilly, VA 20151-1110, USA. http://www.handbookofmineralogy.org/ (2016)
Lafuente B, Downs R T, Yang H, Stone N (2015): The power of databases: the RRUFF project. In: Highlights in Mineralogical Crystallography, Armbruster, T., and Danisi, R.M., eds. Berlin, Germany, W. De Gruyter: 1-30

Internet Links for AdeliteHide

Localities for AdeliteHide

ⓘ - 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.
Algeria
 
  • Skikda Province
    • Azzaba area
Byramjee R.and Meindre M.(1956): Le gisement de manganèse de Guettara. Symposium du manganèse XX congrès international de géologie,
Germany
 
  • Lower Saxony
    • Harz
      • St Andreasberg District
No reference listed
  • Thuringia
    • Thuringian Forest
      • Friedrichroda
        • Gottlob Hill
[MinRec 32:417]
Italy
 
  • Piedmont
    • Cuneo Province
      • Maira Valley
        • Canosio
          • Vallone della Valletta
Cámara, F., Ciriotti, M.E., Bittarello, E., Nestola, F., Massimi, F., Radica, F., Costa, E., Benna, P., Piccoli, G.C. (2014) Arsenic-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: I. Grandaite, Sr2Al(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, 78, 757-774; Cámara, F., Bittarello, E., Ciriotti, M.E., Nestola, F., Radica, F., Massimi, F., Balestra, C., Bracco, R. (2017a) As-bearing new mineral species from Valletta mine, Maira Valley, Piedmont, Italy: III. Canosioite, Ba2Fe3+(AsO4)2(OH), description and crystal structure. Mineralogical Magazine, 81, 305–317; Cámara, F., Biagioni, C., Ciriotti, M.E., Bosi, F., Kolitsch, U., Paar, W.H., Blass, G., Bittarello, E. (2017c) Piccoliite, a new mineral of the pilawite group. Congresso SIMP-SGI-SOGEI-AIV 2017, Pisa, 3-6 settembre 2017, Abstract book, page 120; http://www.socgeol.it/files/download/abstract%20book/abstract_book_pisa_2017_doi.pdf
Sweden (TL)
 
  • Värmland
    • Filipstad
Sjögren, H. (1891): Bidrag til Sveriges mineralogi. 3. Adelit, ett basiskt arseniat från Nordmarken och Långban. Geologiska Föreningen i Stockholm Förhandlingar.13, 604-607.; Holtstam, D. & J. Langhof, eds. (1999): Långban: The mines, their minerals, geology and explorers. Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, p. 89-90.
Sjögren, H. (1891): Bidrag til Sveriges mineralogi. 3. Adelit, ett basiskt arseniat från Nordmarken och Långban. Geologiska Föreningen i Stockholm Förhandlingar. 13: 781-796
Holtstam, D. & Langhof, J. eds. (1999): Långban: The mines, their minerals, geology and explorers. Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, p. 89
Adolfsson, S. G. (1979): Notes on Recent Underground Collecting at Långban. Mineralogical Record. 10: 215-217
      • Nordmark district
        • Jakobsberg ore field
Österberg, T. (1986): Adelit från Jakobsberg. Långbansnytt. vol 2. [ reprinted in: Långbansnytt. De första 20 åren 1983-2003. Långbansällskapet - Skrifter och rapporter. 2, 42]; RRUFF ID: R060687; Kjell Gatedal
Nysten, P. (1987). Armangite from Nordmark. GFF, 109(2), 110-110.
Sjögren, H. (1891): Bidrag til Sveriges mineralogi. 3. Adelit, ett basiskt arseniat från Nordmarken och Långban. Geologiska Föreningen i Stockholm Förhandlingar. 13: 781-796; Mineralogical Magazine (1998) 62 (3), 395-407
Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 806.
      • Persberg district
        • Pajsberg
Nysten, P. (2004): Harstigen ett mineralogisk eldorado i Bergslagen. Norsk Bergverksmuseum Skrift 28: 5-13
USA
 
  • New Jersey
    • Sussex Co.
      • Franklin mining district
        • Franklin
Dunn, P.J.: Contributions to the mineralogy of Franklin and Sterling Hill, NJ: Mineralogical Record:10:160-165 (1979); Dunn(1995):Pt5:655.
        • Ogdensburg
          • Sterling Hill
Mineralogical Record:13:37; Dunn(1995):Pt5:655.
  • Utah
    • Tooele Co.
      • Oquirrh Mts
        • Mercur District (Camp Floyd District)
Mineral News: 19(12): 1, 3.
Mineral and/or Locality  
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