achromatic
neutral
Cretaceous
argent
argentine
branny
canescent
chalklike
comminute
comminuted
cretaceous
cretous
crushed
detrital
detrited
disintegrated
dusty
efflorescent
farinaceous
fine
flaky
fleecy-white
floury
frosted
frosty
furfuraceous
gone to dust
grated
grizzled
grizzly
ground
hoar
hoary
impalpable
lactescent
levigated
lily-white
marble
marmoreal
mealy
milky
milled
niveous
pestled
platinum
powdered
powdery
pulverant
pulverized
pulverulent
pure white
reduced to powder
chalkiness
argillaceous
arid
ashy
basaltic
brownish
calcareous
clayey
craggy
earthy
gravelly
mossy
sandy
waxy
wind-swept
windswept