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What type of rocks is graphite found in?

Graphite can be found in all types of rock (igneous, metamorphic, and sedimentary). Although, it originates from igneous rocks, and is generally most economic in metamorphic rocks.


How are round rocks formed?

Round rocks can be formed through a process called abrasion, where they are repeatedly tumbled and smoothed by the movement of water, wind, or ice. Over time, the sharp edges and corners of the rocks wear away, resulting in a rounded shape.


Copper is found in what type of rock?

Copper is commonly found in igneous and sedimentary rocks, typically associated with areas of volcanic activity or hydrothermal deposits. It can also be found in some metamorphic rocks that have undergone mineral alterations.


What features of metamorphic rocks are unlikely to be found in sedimentary rocks?

Foliation, a layered or banded texture, is a common feature of metamorphic rocks but not typically found in sedimentary rocks. Metamorphic rocks can also have mineral reorganization and recrystallization that are not commonly seen in sedimentary rocks. Additionally, metamorphic rocks may exhibit distinct metamorphic minerals like garnet, staurolite, or kyanite, which are unlikely to be found in sedimentary rocks.


Are the oldest rocks on land or in the ocean?

The oldest rocks are typically found on land, as they have not been eroded away by oceanic processes. The oldest known rocks on Earth are found in Western Australia and are estimated to be around 4 billion years old.