Related to caresite-2H, charmarite-2H and charmarite-3T.
IMA Status:
Approved IMA 1995
Locality:
Found in the Demix quarry, Mont Saint-Hilaire, Quebec, Canada. Link to MinDat.org Location Data.
Name Origin:
Named after Quintin Wight (b. 1935), of Ottawa, Ontario, Canada, significant contributor to mineral studies at Mont Saint-Hilaire, and author of The Complete Book of Micromounting ( 1993).
Brittle - Generally displayed by glasses and most non-metallic minerals.
Habit:
Pseudo Hexagonal - Crystals show a hexagonal outline.
Habit:
Rosette - Bundled tabular aggregates resembling rose flower petals.
Hardness:
2 - Gypsum
Luster:
Vitreous (Glassy)
Streak:
white
Optical Properties of Quintinite-3T
Gladstone-Dale:
CI meas= 0.02 (Excellent) - where the CI = (1-KPDmeas/KC) CI calc= 0.051 (Good) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2412,KPDmeas= 0.2491,KC= 0.2542 Ncalc = 1.54 - 1.56
Optical Data:
Uniaxial (+/-), a=1.533, b=1.533, bire=0.0000.
Calculated Properties of Quintinite-3T
Electron Density:
Bulk Density (Electron Density)=2.21 gm/cc note: Specific Gravity of Quintinite-3T =2.14 gm/cc.
Fermion Index:
Fermion Index = 0.02 Boson Index = 0.98
Photoelectric:
PEQuintinite-3T = 0.90 barns/electron U=PEQuintinite-3T x rElectron Density= 2.00 barns/cc.
Radioactivity:
GRapi = 0 (Gamma Ray American Petroleum Institute Units) Quintinite-3T is Not Radioactive
Chemical Formula: 
