For those born in the month of March, the official gemstone is the Aquamarine. It can range in color from a very pale shade, almost colorless, which is also the most valuable, to a most sought-after deep-blue aqua.
The 10 Biggest Dog Breeds. 1  Tibetan Mastiff: This handsome dog is known for the lionlike mane around his head. He was bred to guard temples. The biggest Tibetan Mastiff is said to have been around 280 pounds, but these days they average 180 pounds.
The English Mastiff is the largest dog breed based on its mass. It is the longest and heaviest dog breed in the world, however, it is not the tallest breed in the block. This dog breed has won several world records for its weight and strength.he English Mastiff is the largest dog breed based on its mass. It is the longest and heaviest dog breed in the world, however, it is not the tallest breed in the block. This dog breed has won several world records for its weight and strength.