speckling

Sometimes the speckling is from the color not blending in very well because you didn't stir in well enough or because the color isn't soluble in the medium you're mixing it with.

Testing Colors Anne-Marie 2008

In the photo below, the speckling is caused by improper colorant mixing.

Using 3-D Molds - Trimming & Color Anne-Marie 2007

In the photo below, the speckling is caused by improper colorant mixing.

Archive 2007-07-01 Anne-Marie 2007

The "speckling," as she called him, was Dotty's own; and when he was put into this insane hospital, all safe from the cat, his little mistress was in a measure consoled.

Dotty Dimple at Her Grandmother's Sophie May 1869

A small screen of AR-binding ligands, including known agonists, antagonists, and endocrine disruptors, demonstrated that nuclear translocation and nuclear "speckling" were linked with transcriptional output, and specific ligands were noted to differentially affect measurements for wild type versus mutant AR, suggesting differing mechanisms of action.

PLoS ONE Alerts: New Articles Adam T. Szafran et al. 2008

I could see the delicate little chocolate shavings speckling the crusty brown dome through the plastic carrying case.

The Art of Seducing a Naked Werewolf Molly Harper 2011

But something about the decay was aesthetically appealing: the moss that grew around the windows where water had leached; the mildew speckling the walls.

Rogue Oracle 2011

I could see the delicate little chocolate shavings speckling the crusty brown dome through the plastic carrying case.

The Art of Seducing a Naked Werewolf Molly Harper 2011

But something about the decay was aesthetically appealing: the moss that grew around the windows where water had leached; the mildew speckling the walls.

Rogue Oracle 2011

And then, somehow, the mug ended up shattered on the floor, the brown ooze of coffee speckling the white vinyl like decay on teeth.

Something Like Nick @ Nite 2010