Rock And Mineral Questions and Answers (Q&A)

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Sedimentary rock is formed by sediments
Igneous rock is formed by molten lava
Metamorphic rock is formed by heat and pressure

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The correct answer is option D
Hardness refers to how a mineral substance responds to or resists scratching by another mineral substance. Hardness is plays a vital role to help determine and identify a mineral substance.

In hardness, if substance X scratches substance Y and...

3 Answers

The most unreliable source is B. Color. This is unreliable because stones and minerals are always exposed to a lot of properties. For example, when the mineral is exposed to weathering, it is already expected that the stones and minerals will suddenly change its color.

In order to check...

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1When magma from inside the earth cools.

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Just like there is a water cycle, there is also a rock cycle. The rock cycle is a system of steps that begins with sediments and goes through a period to make magma or a type of rock. These types of stones include igneous rocks, metamorphic rocks, and sedimentary rocks. Therefore, if a rock...

2 Answers

Heat and pressure to make or form a metamorphic rock.

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Mineral is an INORGANICsolid substance with a definite chemical composition and atomic arrangement . A rock is a solid mixture of two or more minerals.

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A mineral has a range of properties that define it. It can be thee density, the color, the streaks, luster and hardness. The chemical properties of the mineral are the certain indicators of its identity. However, the color is the most inconsistent feature. Hence, you cannot rely on color alone...

2 Answers

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