Transparent to translucent, this glass-like mineral may be found as irregular masses filling veins that cut through rocks, or in flat-lying bands or layers parallel with the bedding planes of sedimentary rocks.
(this glass-like mineral; may be found; as irregular masses filling veins that cut through rocks, or in flat-lying bands or layers parallel with the bedding planes of sedimentary rocks) (irregular masses; filling; veins that cut through rocks) (veins; cut; )
this glass-like mineral irregular masses veins
may be found filling cut
as irregular masses filling veins that cut through rocks, or in flat-lying bands or layers parallel with the bedding planes of sedimentary rocks
veins that cut through rocks