This is a 4

Micraster is an extinct genus of echinoids from the Late Cretaceous to the early Eocene

is also built of impactites

An object "with sparks coming off it" fell into a spinifex plain to their north

Origin: Mined in Jalgaon

Serpentinite Five Point Pyramid | 22 grams | SO24 Moonstone This is a 4Serpentinite is a rock composed of one or more serpentine group minerals and is named after the Latin word "serpens" meaning a serpent, alluding to the appearance of snake skin. Minerals in this group are rich in magnesium and water and are light to dark green. They are formed by serpentinization, a hydration and metamorphic transformation of ultramafic rock from the Earth's mantle. Serpentinite is thought to aid in grounding, protection, and clearing