- eight-fold axes, and the
corresponding patterns are
called threelings,
fourlings, fivelings, sixlings, and eightlings.
Sixlings are
common in aragonite...
-
horizontally striated, {1011}
terminated crystals Twinning On {1011}
producing fourlings Cleavage {1010} Imperfect, {0001}
Imperfect Fracture Conchoidal Tenacity...
-
aggregates and
druses Twinning Common as
composition plane,
contact twins and
fourlings Cleavage {010}
Perfect Mohs
scale hardness 3.5
Luster Vitreous Streak...
- or eight-fold axes, the
corresponding patterns are
called threelings,
fourlings, fivelings, sixlings, and eightlings.
Sixlings are
common in aragonite...
- also m****ive
Twinning Common with twin
plane {110} in pairs, also as
fourlings and
pseudohexagonal sixlings Cleavage Parting on {110} and {130} Fracture...
-
interchange with M-96
about two
miles (3.2 km) south, BL I-94
departs the
fourl-lane
freeway to
follow Michigan Avenue northeasterly along a four-lane divided...
