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Crystal Structure:
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Merlino S , Pasero M , Perchiazzi N , Mineralogical Magazine , 58 (1994) p.69-78, Fiedlerite: revised chemical formula, [Pb3Cl4F(OH)*H2O], OD description and crystal, structure refinement of the two MDO polytypes, Locality: Baratti, Italy, Note: 1A polytype
View Additional jPOWD Structure files for Fiedlerite
[1]
Physical Properties of Fiedlerite
Cleavage:
{001} Distinct, {100} Distinct
Color:
Colorless, White.
Density:
5.88
Diaphaneity:
Translucent
Hardness:
3.5 - Copper Penny
Luster:
Adamantine
Streak:
white
Optical Properties of Fiedlerite
Gladstone-Dale:
CI meas= -0.025 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= -0.059 (Fair) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1828,KPDmeas= 0.1769,KC= 0.1726 Ncalc = 1.98 - 2.01
Optical Data:
Biaxial (-), a=1.98, b=2.04, g=2.1, bire=0.1200
Calculated Properties of Fiedlerite
Electron Density:
Bulk Density (Electron Density)=4.91 gm/cc note: Specific Gravity of Fiedlerite =5.88 gm/cc.
Fermion Index:
Fermion Index = 0.16 Boson Index = 0.84
Photoelectric:
PEFiedlerite =1,400.49 barns/electron U=PEFiedlerite x rElectron Density=6,878.99 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Fiedlerite is Not Radioactive