In the ordinary varieties this is somewhat poor, being mostly blue, or a dirty or a greenish yellow; the better kinds, however, possess magnificent colour and variety, such as in the aquamarine, emerald, etc.
"The Chemistry, Properties and Tests of Precious Stones"
John Mastin
We rode for some time within hearing of the Kinugawa, catching magnificent glimpses of it frequently-turbulent and locked in by walls of porphyry, or widening and calming and spreading its aquamarine waters over great slabs of pink and green rock, lighted fitfully by the sun, or spanned by rainbows, or pausing to rest in deep shady pools, but always beautiful.
"Unbeaten-Tracks-in-Japan"
Bird, Isabella L. (Isabella Lucy)
Picking up my first bird, I found that it was not turquoise, but beryl; and a few minutes later I was certain that it was aquamarine; on my way home another glance showed the color of forget-me-nots on its plumage, and as I looked at it on my table, it was Nile green.
"Edge of the Jungle"
William Beebe