Many bombs acquire rounded aerodynamic shapes during their travel through the air. Volcanic bombs include breadcrust bombs, ribbon bombs, spindle bombs (with twisted ends), spheroidal bombs, and 'cow-dung' bombs. Volcanic blocks commonly consist of solidified pieces of old lava flows that were part of a volcano's cone.

A
B
C
D
E

F
G
H
I
K
L
M
O
P

Q
R
S
T
U
V