Emerald – The green variety of the mineral beryl. Their coloration is caused by chromium and vanadium impurities. Because Emeralds often contain inclusions and fissures, they are somewhat delicate even though they are actually quite hard. Top quality Emeralds are often more valuable than diamonds, and the best Emeralds are generally large as the smaller gemstones don’t generally show the color brilliance.

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Epidot – Epidote is a crystal mineral, generally green in color. The name Epidote comes from the Greek word for increase, “Epidosis”, due to its having one side longer than another. You may also hear Epidote called Pistacite, since it sometimes can be found in a light yellow green pistachio hue. Epidote grows as either a prismatic columnar crystal or as a tabular flat crystal.

Epidot in Quartz – Epidote is a crystal mineral, generally green in color. The name Epidote comes from the Greek word for increase, “Epidosis”, due to its having one side longer than another. You may also hear Epidote called Pistacite, since it sometimes can be found in a light yellow green pistachio hue. Epidote grows as either a prismatic columnar crystal or as a tabular flat crystal.

Ethiopian Opal – Ethiopian opals were first pubished in a report in 1994. These opals are naturally a light color with vivid pays of color and are one of the few non-Australian varieties. Ethiopian opals generally occur as nodules, which makes then perfect for cutting for use in jewelry.

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Eudyalite – A somewhat rare silicate mineral. Eudialyte can be red, magenta, pink, brown and even blue or yellow at times. It grows as granular or tabular crystals and can be found mostly in Canada and Russia as well as Greenland, Norway and Arkansas.