HM80EF: Floater nodule (fossil sponge) of Quartz (chalcedony variety) with spheroidal shapes, translucent and with zones of dark brown color and other areas more whitish.
Smara  Morocco (Western Sahara) (2016)

Specimen size: 6.1 × 5.2 × 3.4 cm = 2.40” × 2.05” × 1.34”