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Various             features of:

AGATE PASTEL – TOPAZE – EUMO. 
1 st reduction factor :            Maximum Eumelanin – Reduced Pheaeo melanin.
Pastel Factor:                             + Eumelanin reduction.
Ag.pastel                                         Ag. Topaz.                                             Ag. Eumo.
Black Gray: Full Pen                                     Dark Gray: Central Melanin            Gray Black: Central Melanin
Pigmented shaft                            Colorless shaft.                               Gray black: Central melanin 
The pheaomelanin in the topazes has been reduced slightly more, making them brighter than the topazes

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