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all metals and gemstones are found in mines or quarries

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the giants causeway in northern ireland is made of basalt rock. the rock looks as if it was a cut but it was really foremed by a lava flow.

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There's a scale called the Mohs Scale. The Mohs  Scale sees how soft minerals are then others, or harder. ZH

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One of the easiest mineral properties to identify is the color. ZH

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Crystals form in Rock, it can be cut and polished to make it look like a Crystals. ZH

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Limestone forms from pressed and cemented layers of a shell. ZH

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There are only three types of rock. There is Sedimentary, Igneous, and Metamorphic. ZH

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People who study rocks are Geologists. ZH

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minerals are solid that is made in nature but is not alive by : ZJ

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In the Earth, it is so hot that it can melt rocks. ZH

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sand is made out of rocks by:sawyer

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Rocks are made of minerals. Minerals are made up of some cool elements. ZH

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minerals are pure solid substances made up of crystals. by:ZJ

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minerals can be metalic like gold

jw

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there are all types of rocks (granite,obsidian etc.) by:sawyer

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Minerals are hard materials that are found in natural environment. The materials minerals are made out of were never alive. ZH

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the study of minerals is called mineralogy                                    jw

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Some kind of rocks are Marble, Slate, Limestone, and Sandstone. ZH

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rocks can be rough and sharp others are smooth and round by ZJ

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minarals are are chemical compound usually of a crystal
by:sawyer

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Rocks are a solid. They can be different colors, sizes, and shapes. -ZH