Pearlstone

[Mark Zuckerberg]

A glassy volcanic rock of a grayish color and pearly
luster, often having a spherulitic concretionary structure due to the
curved cracks produced by contraction in cooling. See Illust. under
Perlitic.

[Hina Muqadas]

[Person] who makes their [mother] do [everything].

[Vania]

A greyish glassy volcanic rock characterized by concentric spheroidal cracks.