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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 ...
Amberlite quaternary ammonium resin. Amberlite is the tradename of a range of ion-exchange resins. External links "Amberlite and Amberlite FP Ion Exchange Resins".
Tiếng Việt; 中文; Edit links ... Amber is fossilized tree resin, much valued since antiquity as a gemstone. Amber is used in jewelry. Subcategories. This ...
Charentese amber - opaque amber found in the Aquitaine Basin, France. Cretaceous (Cenomanian) age. Cambay amber - amber from Gujarat, India, unlike most ambers readily dissolves in solvents, Eocene age. Dominican amber - nearly always transparent, and having a higher number of fossil inclusions than Baltic amber, Miocene age amber.
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]
Hand-coloured photograph of the original Amber Room, 1931 Autochrome of the Amber Room in the Catherine Palace, 1917 Reconstructed Amber Room, 2003. The Amber Room (Russian: Янтарная комната, romanized: Yantarnaya Komnata, German: Bernsteinzimmer) was a chamber decorated in amber panels backed with gold leaf and mirrors, located in the Catherine Palace of Tsarskoye Selo near ...
Kauri gum was also crafted into jewellery, keepsakes and small decorative items. Like amber, kauri gum sometimes includes insects and plant material. [7] Kauri gum was used commercially in varnish, and can be considered a type of copal (the name given to resin used in such a way). Kauri gum was particularly useful for this, and from the mid ...
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]