| 1. | Augite is rich in titanium compared to augite in tholeiitic basalt.
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| 2. | Augite is rich in titanium compared to augite in tholeiitic basalt.
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| 3. | Of the mafic minerals present, augite is the most common.
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| 4. | It occurs with other zeolites, olivine, augite and nepheline.
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| 5. | Augite has two prominent cleavages, meeting at angles near 90 degrees.
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| 6. | Apatite, augite and opaque mineral inclusions are also found.
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| 7. | The dark matrix consists of biotite, aegirine-augite and melanite.
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| 8. | At lower temperatures, pigeonite is unstable relative to augite plus orthopyroxene.
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| 9. | Sanidine phenocrysts and augite ( or enstatite ) are found in some samples.
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| 10. | The clinopyroxene is sodic whose composition varies from hedenbergite to aegirine-augite.
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