The stromatolite is a light earth tone and exhibits fine banding throuout. The formation from which it comes in Western Australia dates to the Mesoproterozoic, to a time that with the first use of sex on earth for reproduction and diversity was occuring, and when the earliest cells with nuclei, the eucaryotes, were first appearing.

The beautiful specimen has been polished to a mirror finish perpendicular to the growth lines. Australian stromatolite is hard to get owing to the remote localities.