Slate is a hard and brittle rock.
It is the Earth's crust.
Hard, but easily breakable - dry and brittle.
The lithosphere, which consists of the crust and uppermost mantle, is considered hard and brittle, unlike the asthenosphere, where rock is considered ductile.
omak and sakateak
No, polytetrafluoroethylene (trade name: Teflon) is generally not brittle.
brittle
hard and brittle so YES
hard and brittle so YES
Ionic solids are brittle and hard as they are bonded with electrostatic bonds.
brittle meaning EASILY BREAKABLE so i don't think it is brittle...
hard
They get hard and brittle when they dry out.
Hardness is the question of how difficult it is to make an impression on a substance. Brittleness is the question of how easy it is to break. Granite is a stone which is very hard but not brittle--it is hard to carve and also hard to break. A plank of wood is not as hard as stone but is not very brittle. You can carve on it with a knife but it won't shatter if you drop it. Glass is hard and brittle. Chalk is not hard but it is brittle.
To be brittle is to be hard and breakable. An example sentence would be: The older she got, the more brittle her bones seemed to be.
Slate is a hard and brittle rock.
Neither, it is brittle.