Amber | Wikipedia audio article
Channel: wikipedia tts
Date: 2018-12-03

This is an audio version of the Wikipedia Article:
Amber


00:00:42 1 Etymology
00:02:13 2 History
00:06:47 3 Composition and formation
00:07:57 3.1 Formation
00:08:46 3.2 Botanical origin
00:09:15 3.3 Inclusions
00:10:06 4 Extraction and processing
00:10:16 4.1 Distribution and mining
00:11:21 4.2 Treatment
00:12:44 5 Appearance
00:15:05 6 Classification
00:16:05 6.1 Class I
00:16:37 6.1.1 Ia
00:16:46 6.1.2 Ib
00:17:45 6.1.3 Ic
00:17:52 6.2 Class II
00:18:02 6.3 Class III
00:18:10 6.4 Class IV
00:18:48 6.5 Class V
00:18:57 7 Geological record
00:19:05 7.1 Paleontological significance
00:19:14 8 Use
00:19:20 8.1 Jewelry
00:19:29 8.2 Historic medicinal uses
00:19:40 8.3 Scent of amber and amber perfumery
00:19:49 9 Imitation
00:20:03 9.1 Imitation made in natural resins
00:20:13 9.2 Imitations made of plastics
00:22:39 10 See also
00:22:49 11 References
00:24:33 12 Bibliography
00:24:42 13 External links
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SUMMARY
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Amber is fossilized tree resin, which has been appreciated for its color and natural beauty since Neolithic times. Much valued from antiquity to the present as a gemstone, amber is made into a variety of decorative objects. Amber is used in jewelry. It has also been used as a healing agent in folk medicine.
There are five classes of amber, defined on the basis of their chemical constituents. Because it originates as a soft, sticky tree resin, amber sometimes contains animal and plant material as inclusions. Amber occurring in coal seams is also called resinite, and the term ambrite is applied to that found specifically within New Zealand coal seams.