SEDA JEWELLERY

KYANITE SILVER

NECKLACE

These are natural stones mined in Nepal

Well polished.

Silver clip on back

The workmanship and finish is excellent

Weight 91.35 cts app

Average Size of stones : 4 mm app

Lenght: 18 inches

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