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Freedite

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About FreediteHide

Formula:
Cu+Pb8(AsO3)2O3Cl5
Colour:
Greenish yellow
Lustre:
Vitreous
Hardness:
3
Specific Gravity:
7.43 (Calculated)
Crystal System:
Monoclinic
Name:
After Dr. Robert L. Freed, American mineralogist, of Trinity University, San Antonio, Texas, USA.
This page provides mineralogical data about Freedite.


Classification of FreediteHide

Approved
4.JB.65

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
J : Arsenites, antimonites, bismuthites, sulfites, selenites, tellurites; iodates
B : Arsenites, antimonites, bismuthites; with additional anions, without H2O
46.1.5.1

46 : ANTIMONITES AND ARSENITES CONTAINING HYDROXYL OR HALOGEN
1 : (AB)m(XO3)pZq
23.14

23 : Arsenites

Physical Properties of FreediteHide

Vitreous
Colour:
Greenish yellow
Streak:
Yellow
Hardness:
Cleavage:
Perfect
On [100].
Density:
7.43 g/cm3 (Calculated)

Optical Data of FreediteHide

Type:
Biaxial

Chemical Properties of FreediteHide

Formula:
Cu+Pb8(AsO3)2O3Cl5
IMA Formula:
Cu1+Pb8(As3+O3)2O3Cl5

Crystallography of FreediteHide

Crystal System:
Monoclinic
Class (H-M):
2/m - Prismatic
Space Group:
B2/m
Cell Parameters:
a = 13.578 Å, b = 20.099 Å, c = 7.465 Å
β = 105.73°
Ratio:
a:b:c = 0.676 : 1 : 0.371
Unit Cell V:
1960.94 ų
Z:
4
Morphology:
Crystals commonly aggregated; radial forms.

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0014613FreeditePertlik F (1987) The structure of freedite, Pb8Cu(AsO3)2O3Cl5 Mineralogy and Petrology 36 85-921987Langban mine, Varmland, Sweden0293
CIF Raw Data - click here to close

Type Occurrence of FreediteHide

Synonyms of FreediteHide

Other Language Names for FreediteHide

German:Freedit
Russian:Фридит
Spanish:Freedita

Common AssociatesHide

Associated Minerals Based on Photo Data:
1 photo of Freedite associated with LeadPb
1 photo of Freedite associated with SpessartineMn2+3Al2(SiO4)3
1 photo of Freedite associated with HematiteFe2O3

Related Minerals - Nickel-Strunz GroupingHide

4.JB.05Fetiasite(Fe3+,Fe2+,Ti)3(As2O5)O2Mon.
4.JB.10ManganarsiteMn3(As2O4)(OH)4Trig.
4.JB.15MagnussoniteMn10As6O18(OH,Cl)2Iso. m3m (4/m 3 2/m) : Ia3d
4.JB.15UM1984-09-AsO:ClHMnMn10As6O18(OH)ClTet. 4/mmm (4/m 2/m 2/m) : I41/acd
4.JB.20ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
4.JB.25NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
4.JB.30AsbecasiteCa3(Ti,Sn4+)Be2(AsO3)6(SiO4)2Trig. 3m : P3c1
4.JB.35StenhuggariteCaFeSb(AsO3)2OTet.
4.JB.40TrigonitePb3Mn2+(AsO3)2(HAsO3)Mon. m
4.JB.45FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
4.JB.50GebharditePb8(As2O5)2OCl6Mon. 2/m : P21/b
4.JB.55DerbyliteFe3+4Ti3Sb3+O13(OH)Mon. 2/m : P21/m
4.JB.55Tomichite(V,Fe)4Ti3AsO13(OH)Mon. 2/m : P21/m
4.JB.55Graeserite(Fe3+,Ti)4Ti3AsO13(OH)Mon. 2/m : B2/m
4.JB.60Hemloite(Ti,V3+,Fe3+,Al)12(As3+,Sb3+)2O23(OH)Tric. 1 : P1
4.JB.70GeorgiadèsitePb4(AsO3)Cl4(OH)Mon.
4.JB.75Ekatite(Fe3+,Fe2+,Zn)12(AsO3)6(AsO3,HSiO4)2(OH)6Hex.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

23.2NanlingiteNa(Ca5Li)Mg12(AsO3)2[Fe(AsO3)6]F14Trig.
23.3LeiteiteZn(As2O4)Mon. 2/m : P21/b
23.5Kuznetsovite[Hg2]2+Hg2+[AsO4]ClIso. 2 3 : P21 3
23.6PaulmooreitePb2[As2O5]Mon. 2/m : P21/b
23.7EcdemitePb6Cl4(As2O7)Mon. 2 : P21
23.9FinnemanitePb5(AsO3)3ClHex. 6/m : P63/m
23.10GebharditePb8(As2O5)2OCl6Mon. 2/m : P21/b
23.11Zimbabweite(Na,K)2PbAs4(Ta,Nb,Ti)4O18Orth.
23.13RouseitePb2Mn2+[AsO3]2 · 2H2OTric.
23.15ManganarsiteMn3(As2O4)(OH)4Trig.
23.17ArmangiteMn2+26(AsO3)14(HAsO3)4(CO3)Trig. 3 : P3
23.18KaribibiteFe3+3(As3+O2)4(As3+2O5)(OH)Orth. mmm (2/m 2/m 2/m) : Pnma
23.19SchneiderhöhniteFe2+Fe3+3As3+5O13Tric. 1 : P1
23.20Lazarenkoite(Ca,Fe2+)Fe3+As3+3O7 · 3H2OOrth.
23.21StenhuggariteCaFeSb(AsO3)2OTet.
23.22Tomichite(V,Fe)4Ti3AsO13(OH)Mon. 2/m : P21/m

Other InformationHide

Notes:
Not radioactive.
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 FreediteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
American Mineralogist: 70: 845-848.
American Mineralogist: 73: 667.
Mineralogy and Petrology: 36: 85-92.

Internet Links for FreediteHide

Localities for FreediteHide

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 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.
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
Schnorrer-Köhler, G., Standfuss, L. & Standfuss, K. (1991): Neue Funde aus den antiken Schlacken von Lavrion, Griechenland. Lapis, 16 (6), 21-23; 58.
          • Sounion area
No reference listed
Namibia
 
  • Oshikoto Region
    • Tsumeb
Bowell, R.J & Mocke, H. 2018. Minerals new to Tsumeb. Communications of the Geological Survey of Namibia, 19, 20-46
Sweden (TL)
 
  • Värmland County
    • Filipstad
      • Långban Ore District
Amer.Min.(1985) 70, 845-848; Nysten, P., Holtstam, D. and Jonsson, E. (1999) The Långban minerals. In Långban - The mines,their minerals, geology and explorers (D. Holtstam and J. Langhof, eds.), Swedish Museum of Natural History and Raster Förlag, Stockholm & Chr. Weise Verlag, Munich, pp. 89-183.
 
Mineral and/or Locality  
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