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 In Columbia, Cedarwood Oil is used in the treatment process. Cedarwood Oil has a R.I. of 1.515-1.520 @20 Degrees C

Source: GEMS, by R. Webster, 4th Edition, Chapter 4, "Emerald, Aquamarine and Other Beryls," page 117. Tom Goodwin, G.G. 13:45, 14 January 2007 (PST)

The emerald page is unprotected now, you can edit it again Doos 14:44, 14 January 2007 (PST)
  • Thank You! I have a lot of valid information to add! Tom Goodwin, G.G. 16:34, 14 January 2007 (PST)