ABC's of Incombustibility

A for asbestos
B for burn
C for celsius
D for defense
E for extinguisher
F for fire
G for grasshopper
H for high temperature
I for ignition
J for joule
K for kelvin
L for lake
M for minerals
N for neck (volcanic plug) 
O for opposition
P for protection
Q for q fever
R for resistance
S for survival
T for thermodynamics
U for unburnable
V for variolite
W for water
X for xaga
Y for yogurt face mask
Z for zoisite