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Gneiss: Identification, Characteristics, and More

Gneiss is one of the most common and recognizable metamorphic rocks in the world. It comes in many varieties and can contain attractive gemstone inclusions, and therefore it’s a very popular rock with collectors. As common as gneiss is, it can sometimes be fairly difficult to identify, partly because it is often confused for other …

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Phyllite: Identification, Pictures & Info for Rockhounds

Phyllite is a widespread metamorphic rock, found in locations all over the world. Chances are good that you have seen and touched several times in your life, whether or not you were aware of it at the time. It is a very attractive and unique-looking rock, but it doesn’t have many practical applications when compared …

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Slate: Identification, Pictures & Info for Rockhounds

Slate is one of the most common and recognizable metamorphic rocks in the world. Chances are good that you have seen and touched slate many times in your life, whether or not you were aware of it at the time. It has many applications in our day-to-day lives and comes in a surprising array of …

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Scoria: Identification, Pictures, & Info for Rockhounds

Scoria is one of the most distinct and unique rock types found anywhere in the world, but it is often confused for pumice. This comes as no surprise since the two rock types are very closely related, but they are two distinct rock types that should be treated as such. Scoria is worth learning more …

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Pumice: Identification, Pictures, & Info for Rockhounds

Pumice is one of the most distinct and unique rock types found anywhere in the world. Almost everyone is familiar with it for its distinct look and its unique ability to float on water. Pumice is often treated as a novelty, but it is worth learning more about due to its prevalence and geologic significance. …

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Dacite: Identification, Pictures, & Info for Rockhounds

Dacite is an extremely common rock type, but many people have never even heard of it. Chances are good that you have seen and touched dacite many times in your life, whether or not you were aware of it at the time. It comes in many varieties, and it is worth learning more about due …

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Andesite: Identification, Pictures & Info for Rockhounds

Andesite is a fairly common rock type, and can be found in locations all around the world. Chances are good that you have seen and touched andesite many times in your life, whether or not you were aware of it at the time. It comes in many varieties, and it is worth learning more about …

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Basalt: Identification, Pictures & Info for Rockhounds

Basalt is an extremely common rock type, and can be found in locations all around the world. Chances are good that you have seen and touched basalt many times in your life, whether or not you were aware of it at the time. It tends to be a very dull and uninteresting-looking rock, but it …

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Gabbro: Identification, Pictures & Info for Rockhounds

Gabbro is an fairly common rock type, and can be found in locations all around the world. Chances are good that you have seen and touched gabbro many times in your life, whether or not you were aware of it at the time. It tends to be a very dull and uninteresting-looking rock, but it …

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