Garnet
Well there are a couple of gemstones that are green. August's birthstone is peridot, which is a yellow green color and the May birthstone is an Emerald which is a darker green. A semi-precious stone that is green would be Jade. See Related Links for more information.
They are very hard and often used as abrasives. The clear crystals are used as gems
red stands for brave soldiers green stands for fertility and yellow stands for the nations mineral deposits red - bravery. green - fertility of land. yellow - mineral resources
When beryl contains chromium, it exhibits a green coloration. This variety of beryl is known as emerald, one of the most valuable and sought-after gemstones.
Heliodor is typically a yellow to yellow-green variety of the mineral beryl. Its color is often described as golden or honey yellow.
Natural gemstones start life as a rock or mineral which is then cut and polished to discover the beautiful coloured 'gem' inside. These natural gemstones are then usually made into jewellery. The more common gemstones are Diamonds (white), Rubies (red), Sapphires (blue) and Emeralds (green) but there are lots of other including Hematite, Obsidian, Tiger-eye, Quartz and Amethyst.
Adelite is a rare mineral, forming blue, green, yellow or grey orthorhombic crystals.
the colors of apatite are green, yellow, blue, redish-brown and purple
Olivine
The Rastafarian flag is made up of red, yellow, and green. The red symbolizes blood. Yellow symbolizes the mineral gold. Green symbolizes earth/land.
Tourmalines are gemstones found in various colors. They come in green, pink, red, blue, yellow, colorless and even black or multi-colored.
The Red is for the blood of soldiers. The Green is for the fertility of the land. The Yellow is for mineral riches.