Agate is a variety of silica quartz, part of chalcedony, it characterized by its fineness of grain and brightness of color. Although agates may be found in various kinds of rock, they are classically associated with volcanic rocks but can be common in certain metamorphic rocks. The colorful agates and other chalcedonies were obtained over 3,000 years ago from the Achates River, now called Dirillo, in Sicily.
Theophrastus was the person who given the name of Agate around 3rd or 4th Century BC, a Greek philosopher and naturalist, who discovered the stone along the shore line of the river Achates.
Agate is one of the most common materials used in the art of hard stone carving, and it has been recovered at a number of ancient sites.
There are some colors among the agate, and each of it have different function when it is used by the user. The types of Agate are:
- A Mexican agate, showing only a single eye, has received the name of cyclops agate. Included matter of a green, golden, red, black or other color or combinations embedded in the chalcedony and disposed in filaments and other forms suggestive of vegetable growth, gives rise to dendritic or moss agate
- Turritella agate is formed from silicified fossil Elimia tenera (erroneously considered Turritella) shells.
- Greek agate is a name given to pale white to tan colored agate found in Sicily back to 400 B.C. The Greeks used it for making jewelry and beads.
- Brazilian agate, occur in brownish tones interlayered with white and gray.
- Other forms of agate include Lake Superior agate, carnelian agate (usually exhibiting reddish hues), Botswana agate, Ellensburg blue agate, blue lace agate, plume agates, tube agate (with visible flow channels), fortification agate (which exhibit little or no layered structure), fire agate (which seems to glow internally like an opal) and Mexican crazy-lace agate (which exhibits an often brightly colored, complex banded pattern) also called Rodeo Agate and Rosetta Stone depending on who owned the mine at the time.
Mystically, lue lace agate is a gentle, calming stone that engenders tranquility. Blue lace agate brings with this calm and tranquility a lessening of anger, even deep anger issues, and a calming of nervousness.
Blue lace agate is considered a stone of communication. It can ease the harsh edge off communication in difficult times, enhance public speaking, and smooth discussions. It also brings tactfulness to speech and written communications. Blue lace agate is used in crystal healing to reduce or cure stuttering and other nervous speech habits and patterns.