| 31. | For example, slate is a foliated metamorphic rock, originating from shale.
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| 32. | The Cecil series developed over igneous metamorphic rock which is chemically similar to granite.
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| 33. | Crag Mountain is composed of quartzite, a weather-resistant metamorphic rock.
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| 34. | The Alaska Empire underground lode mine recovered gold from quartz veins in metamorphic rocks.
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| 35. | Jadeite is formed in metamorphic rocks under high pressure and relatively low temperature conditions.
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| 36. | In areas are metamorphic rocks Palaeozoic granitic and igneous intrusions.
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| 37. | Hard metamorphic rocks are usually placed by waterfalls or streams.
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| 38. | In metamorphic rocks, crystals similar to phenocrysts are called porphyroblasts.
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| 39. | Characteristic is the appearance of various igneous and metamorphic rocks in interesting structural relationships.
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| 40. | Most of these mountains are volcanic in origin although the nucleus is metamorphic rock.
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