Inorganic fibrous shaped body and a method of adjusting the hardness

A variety of flexibility and stiffness without the inorganic binder further provides an inorganic fibrous shaped body and a method of adjusting the hardness with heat resistance. A mineral fibers containing biosoluble inorganic fibers having at least the following composition, and contains an organic thickener, an inorganic fibrous shaped body containing no inorganic binder.