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Olivine Mineral
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Olivine Mineral. Green to yellowish colored mineral. White streak. Glassy luster. 6.5 to 7 on Mohs hardness scale. Olivine is one of the most common mineral on Earth and is found in a variety of rock types. Each mineral sample is approximately 1-2 inches in length and width. An information card with details on the minerals formation, characteristics and uses is included.