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Amber is fossilized tree resin. Examples of it have been appreciated for its color and natural beauty since the Neolithic times, [1] and worked as a gemstone since antiquity. [2] Amber is used in jewelry and as a healing agent in folk medicine. There are five classes of amber, defined on the basis of their chemical constituents.
There are three main sites in the Dominican Republic where amber is found: La Cordillera Septentrional, in the north, and Bayaguana and Sabana de la Mar, in the east.In the northern area, the amber-bearing unit is formed of clastic rocks, washed down with sandstone fragments and other sediments that accumulated in a deltaic environment, even in water of some depth.
Chiapan amber has a number of unique qualities, including much that is clear all the way through and some with fossilized insects and plants. Most Chiapan amber is worked into jewelry including pendants, rings and necklaces. Colors vary from white to yellow/orange to a deep red, but there are also green and pink tones as well.
Open pit amber mine in Kaliningrad, showing the lithology of the Prussian Formation, the source rock of Baltic amber. In situ Baltic amber is derived from the sediments of the geological formation termed the Prussian Formation, formerly called the "Amber Formation", with the main amber bearing horizon being referred to as "Blue Earth", so named due to its glauconite content.
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.
In 1986, California named benitoite as its state gemstone, a form of the mineral barium titanium silicate that is unique to the Golden State and only found in gem quality in San Benito County. [ 80 ] ^ Colorado is the only state whose geological symbols reflect the national flag's colors: red (rhodochrosite), white (yule marble), and blue ...