Discovered and named in 2002 by Johan Pas near Kununurra, East Kimberley, Western Australia.
This iron-rich siltstone comes from the Late Proterozoic Ranford Formation, 610 MYO.


Only 1 left in stock

SKU: CN-Astronomite-1805-1 Categories: , , ,

Astronomite is said to be the rarest of the siltstones, discovered by local prospector, J. Pas, in 2002. It is an indurated very fine grained, dark chocolate brown siltstone. Within this are numerous and irregularly spaced pale yellowish cream coloured orbicules 1-10mm in diameter. A close study of the orbicules show them as concentric ferruginous siltstone rings, progressing from an indistinct pale yellowish cream coloured centre, to a broad light banded pink or orange zone, and finally a thin but distinct cream coloured ring.

Additional information

Shipping Weight0.12 kg
Shipping Dimensions6 × 8.5 cm
Height (cm)


Width (cm)


Depth (cm)





There are no reviews yet.

Be the first to review “Astronomite 1805”

Your email address will not be published. Required fields are marked *