Turquoise comes in all shades of blue, to blue-green, with a possible shading towards brown-veined greens. Matrix (veining) may or may not be present in any color(s). It is the natural variations in turquoise that make it appealing. The color of turquoise in American Indian jewelry ranges from brownish green to bright blue.
Found in veins sandwiched in between layers of mother rock, the turquoise can show some of the influence of the mother rock in its matrix or veining. The matrix colors range from blue to golden brown to black and sometimes with golden flecks (sometimes called "fools gold" or iron pirite) which is very desirable.
The more blue, the higher the copper content. The more green, the higher the iron content.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment