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Basciano L C , Peterson R C , Roeder P L , The Canadian Mineralogist , 36 (1998) p.1203-1210, Description of schoenfliesite, MgSn(OH)6, and roxbyite, Cu1.72S, from a 1375 BC shipwreck,, and rietveld neutron-diffraction refinement of synthetic schoenfliesite, wickmanite,, MnSn(OH)6, and burtite, CaSn(OH)6, Locality: a 1375 BC shipwreck
Physical Properties of Schoenfliesite
Cleavage:
None
Color:
Reddish brown.
Density:
3.483
Diaphaneity:
Transparent
Habit:
Fibrous - Crystals made up of fibers.
Habit:
Prismatic - Crystals Shaped like Slender Prisms (e.g. tourmaline).
Hardness:
4-4.5 - Between Fluorite and Apatite
Luster:
Vitreous (Glassy)
Optical Properties of Schoenfliesite
Gladstone-Dale:
CI meas= 0.135 (Poor) - where the CI = (1-KPDmeas/KC) CI calc= 0.134 (Poor) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.1695,KPDmeas= 0.1694,KC= 0.1958 Ncalc = 1.68
Optical Data:
Isotropic, n=1.59.
Calculated Properties of Schoenfliesite
Electron Density:
Bulk Density (Electron Density)=3.29 gm/cc note: Specific Gravity of Schoenfliesite =3.48 gm/cc.
Fermion Index:
Fermion Index = 0.09 Boson Index = 0.91
Photoelectric:
PESchoenfliesite = 141.23 barns/electron U=PESchoenfliesite x rElectron Density= 465.29 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Schoenfliesite is Not Radioactive
Schoenfliesite Classification
Dana Class:
06.03.06.02(06)Hydroxides and Oxides Containing Hydroxyl