Spinel |
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Mineral (Mg Al2 O4) and semi-precious stone. The spinel family owes its name to the pointed shape of its crystals. Spinel is found in metamorphic rocks derived from limestone or clayey sediments. |
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Spinel |
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Mineral (Mg Al2 O4) and semi-precious stone. The spinel family owes its name to the pointed shape of its crystals. Spinel is found in metamorphic rocks derived from limestone or clayey sediments. |
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