Agate is a variety of quartz that is formed by the deposition of silica within the cavities of volcanic rocks guests.
His training and gradual cooling process, determines its characteristic striped coloring, which makes it unique in the world of stones collection.
As a result of this process, in fact, the Agata is often found in a rounded form and presents concentric bands like the rings of a tree trunk.
The Agate, was once considered a talisman. It was said that protegesse extinguished thirst and fever.
A famous collection of four thousand agate bowls which was accumulated by Mithridates, King of Pontus, shows the enthusiasm with which agate was regarded.
Agate bowls were also popular in the Byzantine Empire: Collecting agate bowls became common among European royalty during the Renaissance and many museums in Europe, including the Louvre, have spectacular examples today.
When the Agate comes in flat and parallel bands of contrasting color (light / dark), takes the name of Onyx (from the greek Onyks = nail, because of its translucent appearance).
Esitono different types of Agata, depending on its colors:
- Agata Arborizzata: white colored crude dendritic inclusions of iron silicate, which ramify along the entire surface of the stone.
- Moss Agate: is formed by sedimentation rhythmic silica cavity inside 'of basaltic rocks. Slightly transparent, light blue moss green inclusions.
It has a hardness of 7 and its deposits most 'famous are located in Germany, Uruguay and Brazil.
A stone that is used as a good luck charm. Promotes the ability to communicate, promotes awareness and helps to calmly deal with critical situations.