ⵡⵉⴽⵉⴱⵉⴷⵢⴰ:ⵜⴰⵙⵏⴰ ⵏ ⵓⵙⵏⵓⴱⴳ/ⴰⵎⵏⵏⵉ ⵓⵙⵎⵉⴷ/13
ⵓⵣⵣⴰⵍ (ⵙ ⵜⵏⴳⵍⵉⵣⵜ: Iron) ⵉⴳⴰ ⵢⴰⵏ ⵓⴼⵔⴷⵉⵙ ⴰⴽⵔⵓⵔⴰⵏ, ⵉⵏⵉⴳⵍ ⵏⵏⵙ Fe (ⵙⴳ ⵜⵍⴰⵜⵉⵏⵜ: Ferrum) ⴷ ⵡⵓⵟⵟⵓⵏ ⵏⵏⵙ ⴰⴱⵍⴽⴰⵎ 26. ⵉⴳⴰ ⴰⵕⵥⴰⵏ ⵉⵍⵍⴰⵏ ⴳ ⵜⴳⵔⵓⵎⵎⴰ ⵜⵉⵙⵙ 8 ⵏ ⵜⴼⵍⵡⵉⵜ ⵜⴰⵡⴰⵍⴰⵏⵜ. ⴳ ⵓⵏⵛⵜ ⵏ ⵜⵙⴰⴽⴰⵢⵜ, ⵉⴳⴰ ⵡⵓⵣⵣⴰⵍ ⴰⴼⵔⴷⵉⵙ ⴰⴽⴽⵯ ⵉⴳⴳⵓⵜⵏ ⴳ ⵡⴰⴽⴰⵍ, ⵏⵏⵉⵛⴰⵏ ⴹⴰⵕⵜ ⵏ ⵓⴽⵙⵉⵊⵉⵏ. ⵉⴳⴳⵓⵜ ⴱⴰⵀⵔⴰ ⴳ ⵓⵙⴰⵢⵔⴰⵔ, ⴷ ⵉⴳⴰ ⴰⴼⵔⴷⵉⵙ ⵡⵉⵙⵙ ⴽⴽⵓⵥ ⵉⴳⴳⵓⵜⵏ ⴳ ⵜⴼⵔⴽⵉⵜ ⵏ ⵡⴰⴽⴰⵍ.
ⵓⵣⵣⴰⵍ ⵉⴳⴰ ⵢⴰⵏ ⵡⴰⵕⵥⴰⵏ ⴰⵥⵕⴼⴰⵏ ⵢⴰⵥⵏ ⵉ ⵓⵎⵖⴷⵓⴷⴷⵉ, ⴷ ⵉⴷⵓⵙⵏ. ⵢⴰⵜ ⵙⴳ ⵜⴼⵔⵉⵙⵉⵏ ⵏⵏⵙ ⵜⵉⵣⴰⵍⴰⵏⵉⵏ ⵜⴳⴰ ⵜⵜ ⵜⵣⵎⵔⵜ ⵏⵏⵙ ⴰⴷ ⵉⵜⵜⵓⵛⵛⴰ (ⴰⵙⵉⵍⵖ ⵏ ⵜⴰⵏⵉⴽⵜ) ⵎⴽ ⵉⵍⵍⴰ ⴳ ⵓⵇⵇⵍⵜⵓ ⴷ ⵡⴰⵎⴰⵏ. ⵉⵎⵛⵛⵉ ⴰⴷ, ⵉⵜⵜⵓⵙⵙⴰⵏⵏ ⵙ ⵜⴰⵏⵉⴽⵜ, ⵉⴳⴰ ⵜⴰⵙⴷⵎⵉⵔⵜ ⵜⴰⴽⵔⵓⵔⴰⵏⵜ ⴳⵔ ⵡⵓⵣⵣⴰⵍ ⴷ ⵓⴽⵙⵉⵊⵉⵏ. ⵓⵣⵣⴰⵍ ⴷⴰⵔⵙ ⴰⵡⴷ ⵜⵉⴼⵔⵉⵙⵉⵏ ⵜⵉⵎⴰⴳⵏⵉⵜⵉⵏ, ⴰⵢⵍⵍⵉ ⵜ ⵉⵜⵜⴰⵊⵊⴰⵏ ⴰⴷ ⵉⴳ ⵓⴱⵖⵉⵔ ⴳ ⵜⵓⴳⴷⵜ ⵏ ⵉⵙⵎⵔⵙⵏ. ⴰⵎⴰⵜⴰ ⵏ ⵡⵓⵣⵣⴰⵍ ⵉⵍⵍⴰ ⴳ ⵉⴷⵖⴰⵔⵏ ⵉⵖⴱⵉⵏ ⴳ ⵓⴳⵏⵙⵓ ⵏ ⵡⴰⴽⴰⵍ, ⵙⵍⴰⵡⴰⵏ ⴰⴽⴽⵯ ⴳ ⵓⵖⵢⴰⵢ ⴰⴳⵏⵙⴰⵏ ⴷ ⵓⴱⵕⵕⴰⵏⵉ. ⵉⵜⵜⵓⴷⵎⴰ ⵎⴰⵙ ⴷ ⴰⵖⵢⴰⵢ ⵏ ⵡⴰⴽⴰⵍ ⵉⴳⴰ ⵜⴰⵡⵊⵊⴰ ⵜⴰⵎⵇⵔⴰⵏⵜ ⵏ ⵡⵓⵣⵣⴰⵍ ⴷ ⵏⵏⵉⴽⵍ. ⴳ ⵜⴼⵔⴽⵉⵜ ⵏ ⵡⴰⴽⴰⵍ, ⵉⵍⵍⴰ ⵡⵓⵣⵣⴰⵍ ⴳ ⵓⵎⴰⵜⴰ ⴳ ⵜⵍⵖⴰ ⵏ ⵉⵎⵖⵓⵣⵏ, ⵣⵓⵏ ⴷ ⴰⵀⵉⵎⴰⵜⵉⵜ (Fe₂O₃) ⴷ ⵓⵎⴰⴳⵏⵉⵜⵉⵜ (Fe₃O₄). ⵉⵎⵖⵓⵣⵏ ⴰⴷ ⴳⴰⵏ ⵉⵙⵓⴳⴰⵎ ⵉⵣⴰⵍⴰⵏⵏ ⵉ ⵓⴼⴰⵔⵙ ⵏ ⵡⵓⵣⵣⴰⵍ ⴰⵎⴳⵓⵔⴰⵏ. ⴰⵙⵎⵔⵙ ⴰⵙⵉⵍⴰⵏ ⵏ ⵡⵓⵣⵣⴰⵍ ⵉⵍⵍⴰ ⴳ ⵓⴼⴰⵔⵙ ⵏ ⵓⵖⴰⵔ, ⵍⵍⵉ ⵉⴳⴰⵏ ⵢⴰⵜ ⵜⵣⵔⴳⵜ ⵏ ⵡⵓⵣⵣⴰⵍ ⴷ ⵓⴽⴰⵕⴱⵓⵏ.