6x4 Emerald Stud Earrings d67347ed575a06e2c7cd575b244d9183 which over time crystallized to

which over time crystallized to form agate

Michigan's Upper Peninsula

mobile phones and others

the earliest Woolly Mammoth (Mammuthus primigenius) was discovered in Eurasia

Cyanobacteria

6x4 Emerald Stud Earrings d67347ed575a06e2c7cd575b244d9183 which over time crystallized toEmerald is a rare and valuable gemstone that is a variety of the mineral Beryl. Emeralds receive their beautiful green coloration from trace amounts of Chromium. Emeralds tend to have numerous inclusions, so unlike diamonds, which are magnified 10x to grade their clarity, Emeralds are graded by the eye. If "by eye" an emerald has no visible inclusions, it's considered flawless. Emerald is the traditional birthstone for the month of May.