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Amber is a unique preservational mode, preserving otherwise unfossilizable parts of organisms; as such it is helpful in the reconstruction of ecosystems as well as organisms; [57] the chemical composition of the resin, however, is of limited utility in reconstructing the phylogenetic affinity of the resin producer. [1] Amber sometimes contains ...
It has been estimated that this forested region provided the resin for more than 100,000 tons of amber. [1] Today, more than 90% of the world's amber comes from Kaliningrad Oblast of Russia. It is a major source of income for the region; the local Kaliningrad Amber Combine extracted 250 tonnes of it in 2014 [2] and 400 tonnes in 2015. [3]
Amber is fossil resin (also called resinite) from coniferous and other tree species. Copal, kauri gum, dammar and other resins may also be found as subfossil deposits. Subfossil copal can be distinguished from genuine fossil amber because it becomes tacky when a drop of a solvent such as acetone or chloroform is placed on it. [4]
Spanish amber- amber from Northern and Eastern Spain, Cretaceous (Albian) in age. Sri Lankan amber - found in sea coast in a very small quantity also called Indian amber or Indian sea amber. Sumatran amber - found in Jambi, Indonesia this amber is a young amber, typically falling in the 20-30 million year age range.
Dominican amber is amber from the Dominican Republic derived from resin of the extinct tree Hymenaea protera. Dominican amber differentiates itself from Baltic amber by being nearly always transparent, and it has a higher number of fossil inclusions.
Amberlite quaternary ammonium resin. Amberlite is the tradename of a range of ion-exchange resins. External links "Amberlite and Amberlite FP Ion Exchange Resins".
Blue amber is a rare variety of amber resin that exhibits a blue coloration. Blue amber has been most commonly found in the Dominican Republic—especially in the amber mines around the city of Santiago and, less commonly, in the eastern half of the country. In the modern age, it was discovered at about the same time as Dominican amber. [1] [2] [3]
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 Cenozoic. The excretion of the resin by certain plants is thought to be an evolutionary adaptation for protection from insects and to seal ...