| 31. | They appear green in colour and contain the magnesium iron silicate mineral olivine.
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| 32. | Plagioclase and, in lesser measure, clinopyroxene and olivine form its phenocrysts.
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| 33. | The lava flows contain olivine, ilmenite and magnetite.
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| 34. | At least one lava erupted after the caldera-forming eruption contains olivine.
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| 35. | The olivine-rich rock can be exposed by a variety of geological processes.
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| 36. | Common mineral associates in igneous rocks include olivine, pyroxenes, amphiboles and magnetite.
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| 37. | Mining for nickel and olivine continued until 2002.
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| 38. | Veins of water-deposited veins are visible, along with crystals of olivine.
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| 39. | Trident lavas are titanomagnetite, and rimmed olivine.
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| 40. | The surface also does not contain any olivine.
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