| 11. | Fastnet Rock is a small clay-slate islet with quartz veins.
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| 12. | Quartz veins containing gold are exposed west of Dundas Bay and on Gilbert Island.
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| 13. | The Alaska Empire underground lode mine recovered gold from quartz veins in metamorphic rocks.
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| 14. | By the early 1900s, numerous other gold-bearing quartz veins had been discovered and mined.
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| 15. | Below the limestone is mica schist carrying small quartz veins.
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| 16. | Quartz veins and igneous rocks form most of its geology.
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| 17. | The Good Hope quartz vein was found in 1874.
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| 18. | The gold ore comes from the quartz veins containing pyrrhotite, pyrite, galena and zinc blende.
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| 19. | Gold mineralization at Goldboro occurs in quartz veins and disseminated sulphides in the wall rock.
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| 20. | However, the torrential rains afterwards exposed more quartz veins.
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