zaffre

zaffre读音音标

英 [\'zɑ:fr]

美 [\'zɑfr]

zaffre意思解释

n.

含氧化钴的混合物；

钴焙砂；

英英释义

Zaffre, a pre-scientific substance (see List of alchemical substances), is a deep blue pigment obtained by roasting cobalt ore, and is made of either an impure form of cobalt oxideClayArt or impure cobalt arseniate. During the Victorian Era, zaffre was used to prepare smalt and stain glass blue.