Succinite has a hardness between 2 and 3,.
Allingite, a fossil resin allied to succinite, from Switzerland.
Murgoci the Rumanian amber is true succinite.
True Baltic amber is distinguished by its yield of succinic acid, for many of the other fossil resins which are often termed amber contain either none of it, or only a very small proportion; hence the name "succinite" proposed by Professor.
The Baltic amber or succinite is found as irregular nodules in a marine glauconitic sand, known as "blue earth," occurring in the Lower Oligocene strata of Samland in East Prussia, where it is now systematically mined.