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Quintinite crystal
Photo by Violet Anderson
László Horváth specimen
© Royal Ontario Museum
Quintinite crystals
Photo by Violet Anderson
© Royal Ontario Museum
Quintinite crystals
© Doug Merson
Quintinite crystal
© Doug Merson
MgAl(OH)12(CO) · 3H
Quintinite-3T is a recently described species from Mont Saint-Hilaire. It had originally been identified as hydrotalcite back in 1976 before being assigned UK #58.
PHYSICAL CHARACTERISTICS:
Color is usually colorless or yellow.
Luster is vitreous.
Diaphaneity is transparent.
Crystal System is hexagonal; 12 or 12.
Crystal Habits include hexagonal and tabular crystals to 1mm.
Cleavage {0001} is perfect.
Fracture is (??).
Hardness is ~ 2.
Specific Gravity is approximately 2.14 g/cm
Streak is white.
Associated Minerals include aegirine, albite, analcime, ancylite
donnayite, gonnardite and microcline.
Distinguishing Features: Crystal habits.
Origin: Named in 1992 after Colonel Quintin Wight (b. 1935), Canadian
mineral collector and author of “The Complete Book of Micromounting”.
CLASSIFICATION:
Dana System
# 16b.6.4.2
Strunz Classification
# V/E.2-5
REFERENCES:
Dana 8:512 (1997), CanMin 35:1541-1549 (1997)
DISTRIBUTION AND RARITY AT MONT SAINT-HILAIRE:
MSH
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Quintinite crystals
©
Quintinite crystals
©
Quintinite crystals
© Quintin Wight