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| COLOMBIAN COPAL AMBER 3.7/KG LOT 48 PCS POLISH/INSECTS THIS LOT OF 48 PIECES POLISHED WITH INSECTS OF ALL KINDS CONTAINS BIG SIZE STONES. 23 STONES FROM 0 TO 50 GRAMS 12 STONES FROM 50 TO 100 GRAMS 9 STONES FROM 1OO TO 150 GRAMS 3 STONES FROM 150 TO 200 GRAMS 1 STONE OF 381 GRAMS How old is Colombian Copal? The age of Colombian (South America) copal still remains an open question. In fact in some papers you can find uncertain "Tertiary" age (see for example the table in Langenheim's review, American Scientist, 78:16-24, 1990), or in other papers also Pliocene-Pleistocene; accurate determinations made by means of 14C revealed that Colombian copal from the region of Santander is in the order of just 200 years old (Clifford et al., Org. Geochemistry, 27:449-464, 1997), practically recent resin. There are others who feel that certain Colombian copals are in the terms of many millions of years. Here you can take a look at all the stones that I'm offering http://cid-1f5843c5e715db41.skydrive.live.com/play.aspx/Colombian%20Copal%20Pics?ref=1 |
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