In which country are there the only in the world deposits of blue amber?
Blue amber is a rare variety of amber. It has only been found in the Dominican Republic. Under artificial light, the amber appears like ordinary amber, but under sunlight it has an intense fluorescent blue glow. Blue amber emits a very agreeable smell, which is different from regular amber. There are several theories about the origin of Dominican blue amber, there is a great probability that it owes its existence to ingredients such as anthracene as a result of 'incomplete combustion' due to forest fires among the extinct species Hymenaea protera trees about 25 to 40 million years ago.
Answers by country
the United States
the United Kingdom
Which of the following European mountain ranges will rise the most in the next century?
This photo has been taken at a seaglass beach in Hawai'i. How is the sea glass formed?
from lava droplets that fall to the sea during land volcano explosions
in deepwater volcano explosions
during lightning strikes