Chemical Composition: Na15Ca6(Fe,Mn)3Zr3SiO(O,OH,H2O)3 (Si3O9)2(Si9O27)2(OH,Cl)2 Cleavage: Perfect Color: Red, Green, Brown Crystal System: Triagonal Form/Habit: Prismatic to uneven Fracture: Uneven Gravity: 2.74-3.1 Hardness: 5-6 Luminescence: None Luster: Vitreous Streak: White to pale pink Transparency: Transparent to opaque
Where does Eudialyte come from?
Eudialyte is mainly mined in Canada, Greenland and Russia. Additional deposits are located in Brazil, Guinea, Madagascar, Namibia, Norway, South Africa, Sweden and the United States (Arkansas).
What is Eudialyte?
Eudialyte is a Silicate mineral. Silicate minerals are the largest family of minerals, including more than 25% of all known minerals and 40% of all common minerals. In addition to being a major part of the Earth’s crust, Silicate minerals have also been found on the moon and in meteorites. Silicates are minerals which contain the elements Silicon (a light gray shiny metal) and Oxygen (a colorless gas). Together, these two elements form a tetrahedron – a shape similar to a pyramid – with a Silicon atom in the center and Oxygen atoms at each of the four corners. These tetrahedra connect with other chemical structures, in six different ways, to form various minerals and rocks. There are six main groups of Silicate minerals. Eudialyte belongs to the Cyclosilicate group which includes the Beryls (Aquamarine, Emerald, and Morganite) as well as Iolite, Sugilite and Tourmaline.
How is Eudialyte formed?
Eudialyte is formed in silica-poor but alkaline-rich igneous rocks.
Julie Abouzelof is the owner of Moonrise Crystals and an advocate for responsibly sourced gems and minerals. Her first career was in education teaching history, geology and anthropology, as well as working with special-needs students. She is now a heart-centered entrepreneur who encourages mindfulness and positive action to heal ourselves and the world. Julie lives in Hawaii with her lover and a little parrot named Darwin.