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Philolithite

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About PhilolithiteHide

Formula:
Pb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4
Colour:
Pale to medium apple-green
Lustre:
Adamantine
Hardness:
3 - 4
Crystal System:
Tetragonal
Name:
From the Greek φίλος (philos), "friend", and λίθος (lithos), "stone", in honor of the Friends of Mineralogy.
This page provides mineralogical data about Philolithite.


Classification of PhilolithiteHide

Approved
3/D.10-120
5.BF.35

5 : CARBONATES (NITRATES)
B : Carbonates with additional anions, without H2O
F : With (Cl), SO4, PO4, TeO3

Physical Properties of PhilolithiteHide

Adamantine
Colour:
Pale to medium apple-green
Streak:
White
Hardness:
3 - 4 on Mohs scale

Optical Data of PhilolithiteHide

Type:
Biaxial (+)
RI values:
nα = 1.920 nβ = 1.940 nγ = 1.950
Max Birefringence:
δ = 0.030
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
none

Chemical Properties of PhilolithiteHide

Formula:
Pb12Mn2+(Mg,Mn2+)2(Mn2+,Mg)4(CO3)4(SO4)O6(OH)12Cl4
IMA Formula:
Pb12O6Mn7(SO4)(CO3)4Cl4(OH)12

Crystallography of PhilolithiteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Cell Parameters:
a = 12.627(9) Å, c = 12.595(9) Å
Ratio:
a:c = 1 : 0.997
Unit Cell V:
2,008.16 ų (Calculated from Unit Cell)
Z:
2
Comment:
Space group P42/nnm

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.95 (20)
7.30 (20)
3.99 (30)
2.975 (100)
2.752 (30)
2.473 (20)
1.716 (20)

Type Occurrence of PhilolithiteHide

Synonyms of PhilolithiteHide

Other Language Names for PhilolithiteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Braunite1 photo of Philolithite associated with Braunite on mindat.org.
Hausmannite1 photo of Philolithite associated with Hausmannite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

5.BF.05FerrotychiteNa6(Fe,Mn,Mg)2(CO3)4(SO4)
5.BF.05ManganotychiteNa6Mn2(CO3)4(SO4)
5.BF.05NorthupiteNa3Mg(CO3)2ClIso. m3 (2/m 3) : Fd3
5.BF.05TychiteNa6Mg2(CO3)4(SO4)Iso. m3 (2/m 3) : Fd3
5.BF.10BonshtedtiteNa3Fe2+(CO3)(PO4)Mon. 2/m : P21/m
5.BF.10BradleyiteNa3Mg(CO3)(PO4)Mon.
5.BF.10CrawforditeNa3Sr(CO3)(PO4)Mon.
5.BF.10SidorenkiteNa3Mn2+(CO3)(PO4)Mon.
5.BF.15Daqingshanite-(Ce)(Sr,Ca,Ba)3(Ce,La)(CO3)3-x(PO4)(OH,F)2xTrig.
5.BF.20Reederite-(Y)(Na,Mn)15Y2(CO3)9(FSO3)ClHex. 6 : P6
5.BF.25Mineevite-(Y)Na25Ba(Y,Gd,Dy)2(CO3)11(HCO3)4(SO4)2F2ClHex.
5.BF.30BrianyoungiteZn3(CO3,SO4)(OH)4Mon. 2/m : P21/m
5.BF.40LeadhillitePb4(CO3)2(SO4)(OH)2Mon. 2/m : P21/b
5.BF.40MacphersonitePb4(CO3)2(SO4)(OH)2Orth. mmm (2/m 2/m 2/m)
5.BF.40SusannitePb4(CO3)2(SO4)(OH)2Trig. 3 : P3

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 PhilolithiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Mineralogical Record (1998): 29: 201-206.
Moore, P.B., A.R. Kampf, and P.K. Sen Gupta (2000): The crystal structure of philolithite, a trellis-like open framework based on cubic closest-packing of anions. Am. Mineral., 85, 810–816.

Internet Links for PhilolithiteHide

Localities for PhilolithiteHide

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.
Sweden (TL)
 
  • Värmland
    • Filipstad
Mineral.Rec.(1997) 28, 55; Mineral.Rec.(1998) 29; 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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