𓊌

Glyph origin
Representing a cut block of stone or brick. The dimension of the sign varies, and it may be written long like, with which it should not be confused, although it was often written shorter to distinguish it. The stone glyph conventionally colored either white (in many examples, representing a whitish stone such as limestone), or blue (in other examples, perhaps representing a mud-brick—as Egyptian scribes generally used a limited color palette that did not include grey or brown—or a block of dark stone such as basalt or greywacke).

Compare the Chinese character.

Usage notes
This glyph and   are extremely similar, see the usage notes there regarding typical coloration and other distinguishing features of the two.