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Minerals, made by Alfonso, Elena, Sara and Gonzalo.

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Minerals are inorganic and solid substances that we find on Earth.

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Minerals can be made from a single element or pore, like wood.

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They can also be made of a combination of elements.

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All minerals have crystal structures.

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Minerals. Each mineral has different composition and unique structure.

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They have different color, crystal structure, luster and hardness.

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Thanks to these properties, mineralogists can classify minerals.

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Colors. Minerals have different colors. For example, quartz can be pink and cobalt is blue.

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Crystals structure. Minerals have different size crystals. For example, sodium crystals, as well as quartz crystals have six sizes.

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Luster. Minerals have different colors. Some reflect a lot of light and look silver, like diamonds or gold. Others reflect less light and look dark, such as rocks.

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Hardness. The hardness of a mineral consists on its resistance to scratches. We can scratch the mineral with other minerals, mint or pine objects. Minerals can be very soft, soft, hard or very hard.

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Examples. Diamond, amethyst, crystal, aragonite.

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Emerald, gold, ruby.

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Iron, pyrite, amber, noble opal, xylocite, pyrite, iron pyrite, cocaine, limestone, brimstone, cygne, penicillin, criminal, topaz, nacreous tokyo, amber, chemical, topaz, talc.

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Thank you for watching.