[ 61T | 
WAVE NUMBER (CM-!) 
4000 3000 2000 1500 1000 900 800 700 
i L tL 
CHIAPAS, MEXICO AMBER 
(MEXICO) By 
H.COURBARIL RESIN (GUYANA) 
H 58 
GIRON, COLOMBIA AMBE 
| | | ! | L ! 1 
= 
| 1 L 
3 4 5 6 7 8 9 10 1] 12 13 14 15 
WAVELENGTH (MICRONS) 
Infrared spectra of Oligo-Miocene amber from Chiapas, Mexico, modern resin from Hymenaea 
Courbaril from Mexico and Guyana and, amber of unknown age from Girén, Colombia. 
ALW Td 
WAX X 
