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metallic rocks and minerals

  • Difference Between Metallic and Nonmetallic Minerals

    Metallic minerals usually originate from igneous rocks. An igneous rock is a type of rock that is formed by the cooling and solidification of magma or lava. Magma is made by melting existing rocks under very high temperature and low pressure.

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  • 10 Minerals That Have Metallic Luster ThoughtCo

    Of around 50 metallic minerals, just a few make up the great majority of specimens. This gallery includes their color, streak, Mohs hardness, other distinguishing characteristics, and chemical formula. Streak, the color of the powdered mineral, is a truer indication of color than the surface appearance, which can be affected by tarnish and stains.

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  • Minerals Comprehensive guide to Rocks and Minerals

    Interactive guide to hundreds of rocks and minerals. Some important minerals are not here yet. We are constantly working on expanding this list.

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  • The Gallery of Minerals With Pictures and Descriptions.

    Quartz is one of the most common of all minerals that make up the continental crust. It is found in igneous, metamorphic, and sedimentary rocks. It is associated with many valuable ore deposits as well. Amethyst is a variety of quartz and owes its purple color to the presence of iron. It is composed of silicone dioxide SiO 2.: Rose Quartz is a variety of quartz and owes its pink color to the

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  • GeoMan's Mineral Identification: Metallic

    GeoMan's Mineral Identification Common secondary mineral in rocks and soils. An

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  • Rocks with highly metallic core ROCKS, MINERALS and

    Hi Went out detecting with my SDC 2300 at a random dried creek looking for new gold locations. Didnt find any gold, but I found these 2 little rocks which sound off like theyre gold or lead. You can see in the picture with the 5c coin (Australian) theyre relatively small, but pack some weight for...

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