Sharon, As a longshot, you might try using the Munsell charts for gley in their s oil color charts. If I remember correctly (my charts are not with me just now), the y run a range of greens that *might* describe your color range. The browns in the soil color charts will likely hit your brown-glass colors as well, though you ma y well be out of luck with other non-earthtone colors. Munsell also markets a pla nt tissue color chart that, as one might imagine, runs a whole gamut of greens. Th e sticky point with this solution is the pricetag: US$145.00. I pulled the price from the 1997 Foresty Suppliers catalog, which tends to run a bit high on Munsell products. You can also get the charts for gley separately from Forestry Suppliers, or probably direct from Munsell. Try browsing http://www.munsell.com. You might be able to devise another solution, but most archaeologists have ( and use) the Munsell standards. Hope this helps. hasta luego, -jason -- Jason Menard Department of Social Sciences- Industrial Archaeology Michigan Technological University [log in to unmask] http://www.ss.mtu.edu/IA/iahm.html sharon wrote: > Dear list members: > In Rio Piedras, Puerto Rico, we found a stratified deposit that > consisted almost exclusively of glass. There were more glass fragments > than soil in there. One of the problems we are facing is finding an > appropriate way of describing the color of the glass. There are many > different variations, like for example 12 shades of green. Is there a > color chart appropriate for the description of glass' color? > > Any advice will be really appreciated. > > Sharon Melendez > Archaeologist > Puerto Rico > [log in to unmask] >