It depends, really. A rock's friability is the ability of a rock to easily be broken into smaller pieces(easy in the sense of hitting it with your hand).
Whether or not a rock can burn is based more off of a rock's composition. For example, coal will burn, quartz will not. Rocks made up of organic material(coal, peat, lignite, oil shale) will burn - hence, fuel.
A rock can, though, be organic and friable. So its possible to have a friable rock that can burn. But ignition isn't dependent upon friability.
No igneous rock flows easily. However, basaltic lava can flow easily, has a relatively low silica content, and turns into basalt, the rock, when solidified.
the metamorphic rock that is easily split is...A Mica, A Pumice and A Sulfur
Basalt is a relatively heavy iron rich hard rock.
Obsidian
slateschist
The sense of friable is "can be easily grinded".
My dictionary says: "Easily crumbled, brittle" Friable means - easily reduced to powder. It is most often used in the context of surgery to describe tissue that is diseased/weak/thin.
A friable colon is one that is easily upset or irritated. It can become swollen and could lead to colon disease.
Brittle or friable.
"Friable" describes the condition of tissue that is easily broken or torn. That can be the result of infection or damage to the tissue from injury or disease. For example, the skin of a scleroderma patient that it is very taut and "stretched thin" can be easily damaged. That tissue would be called friable.
It rips easily.
Friable means easily crumbled or broken.
Friable means to be easily crumbled into a powder. A friable surface in painting would indicate that it is chalky or peeling in such a way that the paint will not adhere to the substrate. You need to remove/clean the friable surface appropriately or you will find that the paint sticks to the decomposing surface and not to the underlying item that is expected to be painted. In a short period of time the new coating will begin to flake off.
Lava does not burn rock because rock is not flammable.
Yes, any non-friable form of asbestos can become friable. Some kinds can become friable simply through aging, weathering, or normal use. Others become friable if worked with power tools, producing dust that is "friable" if allowed to accumulate without being captured and removed from the work area.
A friable callus is a collection of tissue in excess of normal that can be scraped or crumbled away.
It can be crushed into dust