Mastic Gum: A Natural Material With Many Uses What is Lentisk?Lentisk is a resin that is derived from the mastic tree (Pistacia lentiscus). The mastic tree is a small evergreen shrub that is mainly found growing on the Greek island of Chios in the Aegean Sea. Lentisk is extracted from the bark of the tree by making incisions into the trunk and branches from which the gum sap oozes out and hardens upon contact with air.Composition and...
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