SEDA JEWELLERY

KYANITE SILVER PENDANT

This is a natural stone  mined in Brazil stabilized and well polished.

The workmanship and finish is excellent

Silver stamped 925

Weight of silver and stone  21.30 cts app

Size of stone 24 x 21 x 4 mm app

Kyanite is a polymorph with two other minerals; andalusite and sillimanite. A polymorph is a mineral that shares the same chemistry but a different crystal structure with another, or other, minerals. Kyanite is an attractive mineral that has a near sapphire like blue color in some especially nice specimens. Kyanite has a unique characteristic in that it has a wide variation in hardness, in the same crystal. The hardness of kyanite is approximately 4.5 when scratched parallel to the long axis of the crystal and approximately 6.5 when scratched perpendicular to or across the long axis. Other minerals usually have variable hardness on different crystal faces due to a different concentration and oreintation of the atoms in the structure