natural-beads / Kyanite
Strand Kianite round coin 7-8 mm All dimensions are approximate in millimeter All prices aproximate shown are based on a single strand Strand 16 "
Ref: 8440031
Strand Kianite coin
40 cms Strand
1-3
17.44 €
4-9
17.09 €
> 10
16.74 €
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
