Succinite has a hardness between 2 and 3, which is rather greater than that of many other fossil resins.

It is extracted from pine tar, and is also found in certain fossil resins.

Amber - name for fossil resin or tree sap that is appreciated for its colour.

Yellow amber is a hard, translucent, yellow, orange, or brown fossil resin from evergreen trees.

Fossil resins include amber and are remains of the sap of prehistoric trees found in coal beds.

The sense was extended to fossil resin circa 1400, and this became the main sense, as the use of ambergris waned.

Fossil resin (colloquially called amber) is a natural polymer found in many types of strata throughout the world, even the Arctic.

The oldest fossil resin dates to the Triassic, though most dates to the Tertiary.

Fossil resin often contains other fossils called inclusions that were captured by the sticky resin.

Fossil resins from Europe fall into two categories, the famous Baltic ambers and another that resembles the Agathis group.

Particular noteworthy is its extensive collection of amber and other fossil resins, ranking among the largest natural-science collections of its type worldwide.

The fossil was recovered from an outcrop of the Blaue Erde deposits which contain the fossil resins in the Baltic region.

In the Middle Ages, a German monk, Theophilus Presbyter, found he could dissolve amber (a fossil resin) in heated linseed oil.

Amber is the common name for fossil resin which is appreciated for its inherent and interesting mixture of colours and it is widely used for the manufacture of ornamental objects.

The fossil record of insects is at its best from Tertiary deposits, where amber, the fossil resin of coniferous trees in which insects became entrapped, yield great numbers of exquisitely preserved specimens.

Copalite (or copaline), also termed fossil resin and Lowgate resin, is a naturally occurring organic substance found as irregular pieces of pale-yellow colour in the London Clay at Highgate Hill.

For this he used organic raw materials such as egg, casein, linseed and poppy seed oil, leather glue, wax, gum arabic, cherry tree resin, larch turpentine, fossil resin and different earths.

Many fanciful explanations have been advanced to account for amber, but the Elder Pliny already diagnosed it as a fossil resin of pine and the same opinion was also entertained in China before the Tang period.

From 1970 Zherikhin organized field trips to collect fossil insects, and particularly those in Cretaceous and Palaeogene fossil resins, to northernmost Siberia (Taimyr Peninsula), the Russian Far East, and the Caucasus.