mineral - a natural, solid substance that has a definite chemical composition and physical structure, magma - melted rock within the Earth , igneous rocks - a rock formed when magma or lava cools and hardens, intrusive igneous rock - forms from magma that has cooled and hardened within the Earth's crust. Example: Gabbro , extrusive rock - forms at the surface of the Earth from lava. Example: pumice , lava - magma that reaches the earth ,

Igneous Rocks

بواسطة
طباعة
تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

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