January's birthstone is the garnet.
February's birthstone is the amethyst.
March's birthstone is the aquamarine.
April's birthstone is the diamond.
May's birthstone is the emerald.
June's birthstone is the pearl.
July's birthstone is the ruby.
August's birthstone is the peridot.
September's birthstone is the sapphire.
October's birthstone is the opal.
November's birthstone is the topaz.
December's birthstone is the turquoise.
If I understand your question you mean geology.
A bar graph would be ideal for comparing the amount of rainfall each month for one year as it allows for a clear visualization of the differences in rainfall between each month.
Some reddish brown gems include garnet, tourmaline, and sunstone. These gems can vary in shades and transparency, and are often used in jewelry settings for their warm and earthy tones.
The value of gems can vary significantly depending on factors such as the type of gemstone, its quality, size, and market demand. Some gems may be worth a few dollars per carat, while others can be valued at thousands of dollars per carat. It's best to have gems appraised by a professional gemologist to determine their precise value.
rocks
Birthstones are different for each month of the year. The site Birthday Gems has a list of each month and the stone that corresponds with it. You would need to find out the months of birth, and then match the stones.
Diamonds are considered a kind of a birthstone. There are 12 stones and gems that represent each month of the year. The diamond is the birthstone for the month of April.
Twilight Gems: Assassins(10%) Twilight Stones: Dancers(10%)
Precious stones are called gems.
dimonds
a crystal
milligrams
A common unit of measure for gems and stones is the carat. One carat is equivalent to 200 milligrams.
Clear bushes, trees, stones or use real cash to buy gems.
gems
Stones that are rare, and look beautiful are considered Gems.
The Unit To Measure Gems And Precious Stones Is Carat.