A Geologic Vesicle
a: Vesicle ~
b: a mold
What:
"The word comes from the Latin for "little bladder." Vesicles that fill with minerals are called amygdules; that is, if a vesicle is like a mold, an amygdule is like a cast"
Useful?
Writer: Andrew Alden
LCC:
Where:
Date: Jan 1 2014 1:48 PM
# 4614 Critique Analogy