Bloodshot Iolite. Known as the gemstone of the Vikings, Iolite was used by Norse and Viking explorers as a navigational aid, as a properly oriented stone would change color in relation to the direction of sunlight, allowing for crude navigation in the fog- enshrouded northern Atlantic waters where the direction of the sun was otherwise impossible to discern.
LAGUNA 129 - (7,6x6,9x3,0cm) MEXICO, Chihuahua, Mun. de Chihuahua, Ojo Laguna, Rancho el Agate | Flickr: Intercambio de fotos
Andreas Nicolas Fischer - Schwarm-VIII-12000-12; generative software; 2013
Agate - Agate is one of the world’s most common stones, but don’t let its common occurrence lead you to believe it is anything less than special! This little gem is found all over the world. The main areas include Africa, Asia, Brazil, Egypt, Germany, India, Italy, Mexico, Nepal, and the USA. The name Agate comes from the river Achetes in Sicily, where it was first noted in ancient times. Agates have been discovered with Neolithic artifacts and were used before 3000 BC. No doubt, it is…
Crazy Lace Agate (SiO2) is named for random lace-like patterns in the Agate layers. Most of this material is white or gray, but brown, red, and yellows are fairly common. The layers are sometimes porous enough that artificial colors can be added. From Mexico.