Lake Superior Agate
Lake Superior Agate - Lake Superior Stone
Lake Superior Agate is a type of agate stained by iron and found on the shores of Lake Superior. Its wide distribution and iron-rich bands of color reflect the gemstone's geologic history in Minnesota, Wisconsin, Nebraska, Iowa, Kansas and Michigan. In 196, the Lake Superior agate was designated by the Minnesota Legislature as the official state gemstone.
The Lake Superior Agate is noted for its rich red, orange, and yellow coloring. This color scheme is caused by the oxidation of iron. Iron leached from rocks provided the pigment that gives the gemstone its beautiful array of color. The concentration of iron and the amount of oxidation determine the color within or between an agate's bands. There can also be white, grey, black and tan strips of color as well.
The gemstone comes in various sizes. The gas pockets in which the agates formed were primarily small, about 1 cm in diameter. A few Lake Superior agates have been found that are 22 cm in diameter with a mass exceeding 10 kilograms. Very large agates are extremely rare.
The most common type of Lake Superior Agate is the fortification agate with its eye-catching banding patterns. Each band, when traced around an exposed pattern or "face," connects with itself like the walls of a fort, hence the name fortification agate.
A common subtype of the fortification agate is the parallel-banded, onyx-fortification or water-level agate. Perfectly straight, parallel bands occur over all or part of these stones. The straight bands were produced by puddles of quartz-rich solutions that crystallized inside the gas pocket under very low fluid pressure. The parallel nature of the bands also indicates the agate's position inside the lava flow.
Probably the most popular Lake Superior agate is also one of the rarest. The highly treasured eye agate has perfectly round bands or "eyes" dotting the surface of the stone.
Sacred to Ojibwe, Sioux and Chippewa People, Lake Superior Agate stones are powerful healers, especially when kept in water which is infused with their energies then given as an elixir. They are especially potent when used for chest issues, and their repeating layers wrap you in a protective, grounding blanket of healing and energetic growth.
Lake Superior Agate is a positive, supportive stone for those who are going through change in their life. A stone of transformation, Lake Superior Agate will help you to stay stable and secure.