The correct answer is: B. Igneous rocks
Beryllium is a chemical element with the symbol Be and atomic number 4. It is a relatively rare element in the Earth’s crust, with an average abundance of about 0.0002%. Beryllium is found in a variety of minerals, including beryl, chrysoberyl, and phenacite. It is also found in some igneous rocks, such as granite and basalt.
Igneous rocks are formed when magma or lava cools and solidifies. Magma is molten rock that is found beneath the Earth’s surface. Lava is magma that has reached the Earth’s surface. Igneous rocks are classified into three types: intrusive, extrusive, and hypabyssal.
Intrusive igneous rocks are formed when magma cools and solidifies beneath the Earth’s surface. They are typically coarse-grained and have a large crystal size. Examples of intrusive igneous rocks include granite, gabbro, and diorite.
Extrusive igneous rocks are formed when lava cools and solidifies on the Earth’s surface. They are typically fine-grained and have a small crystal size. Examples of extrusive igneous rocks include basalt, rhyolite, and andesite.
Hypabyssal igneous rocks are formed when magma cools and solidifies within the Earth’s crust, but not at the surface. They are typically intermediate in grain size between intrusive and extrusive igneous rocks. Examples of hypabyssal igneous rocks include diorite, gabbro, and tonalite.
Beryllium is found in a variety of igneous rocks, including granite, basalt, and diorite. It is also found in some metamorphic rocks, such as gneiss and marble. However, beryllium is most commonly found in igneous rocks.