If you forgot your password, well, then we’ll email you instructions to reset your password.
Tin has been in use by ancient civilizations for thousands of years. Its presence as a metal is mentioned in the Old Testament. The symbol for tin comes from the Latin word stannum, which was known to be an alloy of lead and silver. It is the 49th most common element in the Earth's crust.
If all of the existing gold in the world was pulled into a 5 micron thick wire, it could wrap around the world 11.2 million times.
Aquamarine, belonging to the family of Beryl, is an attractive gemstone. It is the branch of the same family from where emerald acquires its roots. The transparent gemstone is found in various shades of the ocean