Our green turquoise tumbled stones are from Africa, vary in blue-green to yellow-green colouration, and are approximately 2-3 cm at their widest point. They are a natural turquoise, with no "enhancements," dyes, or stabilization.
We are able to offer them at such a low price because they are considered "low-quality." This is because of their greenish colour and the large amount of matrix in each. ("Matrix" is the word for the plain rock that precious or semi-precious stones grow inside of.) On the bright side, this large amount of matrix actually makes them slightly harder than pure turquoise, which is quite soft, making them less easily damaged than more expensive stones. However, you should still be very careful with them!
The word "turquoise" literally means "Turkish," because that's where 17th century Parisians got theirs from. It has, however, had many, many names, including "callais" (Ancient Greek) and "chalchihuitl" (Nahuatl). While it is technically a crystal, it does not form crystalline shapes on a level that we can see. It is high in copper and aluminum, metals that are toxic if breathed in or ingested, and the stone is softer than glass, making it easier to break and shape than most. This led to it being one of the first gemstones - a stone, usually crystalline, which is valued for its beauty and used in jewelry and adornment. Its use as such stretches back at least as far as 3200 BC, making it a great stone for connecting with ancestors (particularly those from the area of North Africa, Southwest Asia, or the southern half of North America).
In most cultures of the areas where turquoise is naturally found, it is considered a talisman of good fortune, often to the point that it was worn to protect against misfortune. Turquoise was strongly connected to Hathor, who was called "Lady of Turquoise." It is typically considered sacred or highly valuable to the Puebloan peoples (Hopi, Pueblo, and Zuni), the Aztecs, and the Maya peoples. It was also one of the stones said to be on a Jewish High Priest's breastplate in the book of Exodus (or Shemot). In modern Western culture, turquoise is the birthstone of December. It is typically associated with peace, fortune, clear skies, and spirit.
Turquoise worn as jewelry or adornment has been known to change colour, due to exposure to the sun and elements, skin oils and sweat, and cosmetics. It is usually quite porous and easily stained or damaged. It is not advised that it be left outside, left on windowsills, or exposed to water or oil.