Terra Agate 14mm Round - 15-16 Inch JUL4-4 and variation of the amount

and variation of the amount of iron in the stone creates a color range from reddish purple to deep violet to light lilac

Originally discovered in the 1940’s and not introduced commercially until 1978

originally from the Lapis-Lazuli mine in Afghanistan

Viking explorers used thin pieces of Iolite as the world’s first polarizing lens to help them determine the exact location of the sun for navigation

giving some rubies a slightly brownish or purplish tint

Terra Agate 14mm Round - 15-16 Inch JUL4-4 and variation of the amountWith the possible exception of the horizon meeting the bright blue sky on a perfect summer day, or a sandy beach blending into a tropical bay, there may not be a beautiful blue and brown combination than that of Terra Agate. The rounds even resemble little Earths, the brown spaces creating new continents aside the unfamiliar oceans. A form of chalcedony made of quartz, Terra Agate contains the best of nature in a variety of small shapes.