MINERAL

Beach sand for the Mineral challenge.
‘Most sand on the beach consists of grains of the mineral quartz.
Mineral sands are old beach, river or dune sands that contain concentrations of the important minerals, rutile, ilmenite, zircon and monazite’ - www.ga.gov.au

Thanks to all for their love for the cute kitten bundle - he remains nameless.
Thanks to freespiral for hosting.