And just for fun, here's a shot of the whole enormous gallon jar of sea glass when I first dumped it out and started sorting:
It doesn't look all that impressive until you get a sense of the scale: that's a soda bottle on the right. The contents of this jar became both Sea Glass Spectrum No. 2, Dark Green to Olive and Sea Glass Spectrum No. 3, Emerald to Lime Green.
And here's a process shot of the composition:
It took a while.