| 1. | Labradorite is the principal component of the igneous rock type anorthosite.
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| 2. | The uncommon anorthosite bodies are composed almost entirely of labradorite.
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| 3. | The rock is almost exclusively anorthosite, Franzi said.
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| 4. | Anorthosite plutons occur in a wide range of sizes.
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| 5. | The Granulite Terrane is composed of meta-igneous gneisses including anorthosite massifs.
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| 6. | The aluminum industry could shift from using bauxite to using anorthosite and clay.
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| 7. | Within the gneiss are variably-sized enclaves ranging from anorthosite to ultramafic.
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| 8. | It is also found in metamorphosed anorthosite complexes.
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| 9. | If more than 90 % plagioclase is present, then the rock is an anorthosite.
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| 10. | Lister Anorthosite, in northern Labrador, Canada, cover several thousands of square kilometres.
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