Table 1 The correlation between the chemical composition and color of agate bands
From: Quantitative mapping of trace elements in agate using LA-ICP-MS
Chemical composition | Color |
|---|---|
Iron oxide | Red, brown, black, green |
Manganese | Pink, violet, black |
Chromium | Green, yellow, red |
Titanium | Blue |
Cobalt | Red |
Nickel | Green |
Copper | Red, blue, green |