A fragment of rock with a different origin to the host it is embedded in is known as a xenolith.
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Uplift and solidification
The word igneous comes from the Latin word igneus "of fire, fiery," which comes from ignis "fire".
porphyritic
Onyx is a variety of quartz, usually with a sedimentary origin.
The texture of an igneous rock refers to the size of its mineral crystals. If the common magma of both igneous rocks has experienced differences in cooling rates due to depth, they will have different textures. Slow cooling produces large crystals, and quick cooling produces small crystals. Granite and rhyolite are two igneous rocks sharing the same mineral composition, but having undergone different rates of magma cooling due to depth at solidification.
A xenolith is a piece of rock having a different origin to that of the igneous rock in which it is found.
Molten Magma.
intrusive igneous rock
earth origin
Igneous rocks and most metamorphic rocks, of an igneous origin.
Magma or lava.
Crystalline structure, and an origin from magma.
How fast it cools
Their origin, and chemical composition.
Uplift and solidification
The word igneous comes from the Latin word igneus "of fire, fiery," which comes from ignis "fire".
Both are igneous rocks.