It appears you're outlining key concepts related to minerals and rocks. Let me help you fill in the blanks and clarify the relevant definitions:
A mineral is made of one or more elements that can be broken down through chemical processes. A rock is made of two or more minerals. Hardness can be measured using the Mohs scale of mineral hardness. The luster of a mineral sample is the way light interacts with its surface. It is based on the appearance of the sample. Luster is related not to the color or shape of the sample, but rather its transparency and light reflection or refraction. There are two main types of luster: metallic and non-metallic. Minerals can have no magnetism, be attracted to a metallic field, or be repelled from a magnetic field. When you rub a mineral on a streak plate, it will leave a powder.
Here’s a concise version:
- Mineral: A naturally occurring inorganic substance with a defined chemical composition.
- Rock: A solid aggregate of one or more minerals.
- Hardness: A measure of a mineral’s resistance to scratching, often assessed using the Mohs scale.
- Luster: The way light interacts with the surface of a mineral, categorized as metallic or non-metallic.
- Magnetism: The property of some minerals to be attracted to magnets.
- Streak: The color of the powder left behind when a mineral is rubbed against a streak plate, which can help in identifying the mineral.
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