| 11. | Patination composition varies with the reacted elements and these will determine the color of the patina.
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| 12. | Copper s patination process is complex.
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| 13. | Subsequent deterioration of the patination and years of graffiti scratched into the surface resulted in further corrosion.
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| 14. | Where patination does take place in arid environments, it may mature to an ebony or nut brown.
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| 15. | An important hoard had a group of 72 pieces with similar patination and soil crusting, suggesting common burial.
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| 16. | In all environments except the coastal areas, patination takes longer for vertical surfaces due to more rapid water runoff.
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| 17. | Chemical patination applied in the field is not recommended due to variations in temperature, humidity, and chemical requirements.
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| 18. | Although other patination agents can be used on these metals, some artisans prefer the rich colors achieved through traditional RokushM.
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| 19. | "' Marie Louise Kold "'is an artist who works with the patination and etching of metals.
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| 20. | Factory-applied chemically induced pre-patination systems can produce a wide range of colored finishes similar to natural patination.
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