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« on: April 11, 2009, 11:05:36 pm »
Given that we have red, black, yellow, and white sand, I would LOVE it if they would make glass of their respective colors..
Black sand is (at least in the 3D world...) generally either volcanic (obsidian!) or due to iron impurities, red sand may be due to garnet, white sea sand is generally some form of calcium (coral, limestone) and white land sand is most likely gypsum. Admittedly, your standard yellow/tan sand DOES make green glass; I've seen some really beautiful fulgurites --"petrified lightning" -- back home in the Nebraska sandhills.
Anyway, back to my point... Sand gets its coloration from its chemical composition, so it seems logical that the coloration would carry over to the glass: red sand would make red glass, black sand would make black glass/obsidian, yellow sand would still make green glass, and white sand would either make clear glass, or be usable as a flux stone.