Tourmaline is a striking gemstone, available in a plethora of colors. Many are familiar with pink tourmaline, but the stones can also be blue, bi-color, colorless, chrome, or green. One prized formation is the watermelon tourmaline, which is generally round and has green, white, and red layers, resembling a cut watermelon.
Rhodolite is a varietal name for rose-pink to red mineral pyrope, a species in the garnet group. It is found in Cowee Valley, Macon County, North Carolina. The name is derived from the Greek for "rose-like", in common with many pink mineral types.
Aquamarine is a relatively common gemstone, and is affordable in lighter colors. Deeper colors can command high prices. Some enormous transparent crystal masses of Aquamarine have been found, and exquisite gems weighing thousands of carats have been cut from them.
Iolite is a clean, beautiful stone that is still very affordable. It can be found in blue to purple to light gray colors. The Vikings used iolite as a light polarizer, using it to see through the haze and determine the exact location of the sun on overcast days.
The moonstone is named after its white color and the strange play of light. Which reminded people in ancient times of the wax and wane of the moon.
Moonstones are amazing gemstones that are very affordable, but unfortunately are slowly getting pricier because of increasing demand and scarcity.
Citrine is the yellow to orange variety of Quartz. Natural Citrine is not common; most Citrine on the gem market is produced by heat treating Amethyst and Smoky Quartz. It takes a relatively low temperature to change the color light to golden yellow, and heating to higher temperatures will give the stone a darker yellow to brownish-red color.