Figure 1
From: Genesis and influencing factors of the colour of chrysoprase

Photograph of some of the samples used in the present study. The round flat samples used for colour-parameter testing had an average mass of 3.96Â g.
From: Genesis and influencing factors of the colour of chrysoprase
Photograph of some of the samples used in the present study. The round flat samples used for colour-parameter testing had an average mass of 3.96Â g.