Hello:

Plant exudates are generally sticky organic materials that many plants produce (http://essential.metapress.com/content/1110865105v7q345/). With time, they tend to become solid. One kind of plant exudate is resin; fossilized resin is known as amber (http://essential.metapress.com/content/x117340n1t081165/). 

Do you know of people or institutions that may hold any one or more of these types of materials? These materials are held in departments of botany, anthropology, and mineral sciences, among others. If “yes”, could you contact me ([log in to unmask]) or Dr. Joseph B. Lambert ([log in to unmask])? We use small samples (100 milligrams, approximately the volume of a new eraser on top of a pencil) of plant exudates, copal (partially fossilized resins), and amber with excellent geographical (and in the case of copal and amber) geological provenance. Some of these materials are used in archaeological contexts (http://essential.metapress.com/content/339j6785701j146h/), thus samples of such materials would also be appreciated.

Apologies if you are not interested in this subject.

Gratefully,

Jorge Santiago-Blay, PhD

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