Nice quality. Very substantial and feels good to wear and even just in your hand.
|Dimensions (mm)||11 x 7 x 5mm|
|Weight (carats)||35.76 carats|
This is a natural untreated stone mined in Nepal with stunning sapphire blue colour.
The workmanship and finish is excellent
Ring size 8.5
Size of the stone 11 x 7 mm app
Weight of stone and silver 35.76 cts 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.
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