10 · Blue
Azurite Cu₃(CO₃)₂(OH)₂
deep blue, glassy → pale blue
#77a1dc · L* 65.5 · C* 34.0 · h 272.0°
Ravenholme Vein · 11 February 2025
The key · sector
Blue
Hue between 200° and 345°. Copper again — the same metal, the same district, a different carbonate.
1 of 15 · hue 200° to 345°
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