How do you know if a rock is an igneous rock?

Answer 1

Igneous rock is magma (or lava) that has cooled, hardened, and solidified. It is recognized by it's generally smooth texture, high mass (basically a rock a certain size will weigh more than you'd expect just by looking at it), and wavy form-remember, it is solidified magma.

Answer 2

Igneous rocks are formed through the cooling and solidification of magma or lava. You can identify an igneous rock by its texture, which can range from glassy (rapid cooling) to coarse-grained (slow cooling), as well as its mineral composition, which typically includes minerals like feldspar, quartz, and mica. Igneous rocks often exhibit interlocking crystal structures due to their formation process.

Answer 3

The rock crystallizes and how it cooled from what is made of

Answer 4

Geologists classify igneous rocks based on their origin, texture and mineral composition. Rhyolite, Granite, Pegmatite, and Porphry are all igneous rocks