Attacked wood can become spongy and friable. Unconsolidated and friable sand lies beneath this crust. Rosin is brittle and friable, with a faint piny odor. This soil is of lighter texture and has a porous and friable structure. It prefers sandy, friable soil. Crocidolite commonly occurs as soft friable fibers. Callus cultures are often broadly classified as being either compact or friable. Whether the eroded material is an ice-rich dust or friable volcanic ash is still uncertain. Their gross appearance is solid, friable, and yellow, with necrotic and hemorrhagic areas. The soil is friable, red and sandy. Eggs are laid, presumably, in friable, sandy soil. It requires good sunlight and rich, well-drained, friable, and moisture-retaining soil. Exposure to friable asbestos increases risks of various serious health conditions, including cancer. As coral stone is very friable, frequent maintenance is needed for most of these buildings. It is friable and flavoured, for example, with ginger or lemon.