Comendite
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Phenocrysts are sodic sanidine with minor albite and bipyramidal quartz. Comendite occurs in the mountains Tibrogargan, Coonowrin, Tunbubudla, Coochin, Saddleback, Tibberoowuccum and Ngungun in the Glass House Mountains, South East Queensland, Australia. The blue colour is caused by very small crystals of riebeckite or arfvedsonite. Comendite also occurs in Sardinia, Corsica, Ascension Island, Ethiopia, Somalia and other areas of East Africa.The 1903 eruption of Changbaishan volcano in north-east China erupted comendite pumice.
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Comendite
Comendite is a hard, peralkaline igneous rock, a type of light blue grey rhyolite. Phenocrysts are sodic sanidine with minor albite and bipyramidal quartz. Comendite occurs in the mountains Tibrogargan, Coonowrin, Tunbubudla, Coochin, Saddleback, Tibberoowuccum and Ngungun in the Glass House Mountains, South East Queensland, Australia. The blue colour is caused by very small crystals of riebeckite or arfvedsonite. Comendite also occurs in Sardinia, Corsica, Ascension Island, Ethiopia, Somalia and other areas of East Africa.The 1903 eruption of Changbaishan volcano in north-east China erupted comendite pumice.
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Comendite is a hard, peralkali ...... where the rock type is found.
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Comendite é uma rocha ígnea pe ...... aior teor relativo em alumina.
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Comendite is a hard, peralkali ...... hina erupted comendite pumice.
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Comendite é uma rocha ígnea pe ...... aior teor relativo em alumina.
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Comendite
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Comendito
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