What does indistinct mean in cleavage?

In the context of cleavage, "indistinct" refers to a lack of clear or well-defined boundaries between the cleavage planes or surfaces. This can occur when the separation between layers is subtle or not easily recognized, making it difficult to identify specific cleavage directions. Indistinct cleavage often results in a more uniform appearance of the mineral or rock, as the layers blend together rather than stand out distinctly.