Angrite meteorites formed in the inner Solar System ... including ancient river beds and minerals formed in water, such as hematite. Sarafian's team also estimated how big the angrite parent ...

Under this model, the hematite formed after water had disappeared ... They compared their hypothesis to the composition of a ...

such as grape agate or hematite. Another way tiny spherules can form is from molten rock that cools rapidly. This process can happen during a meteorite impact, when the heat of the collision ...