Blue oval turquoise Bracelet

Bracelet of 17 cm made up of 9 blue polished turquoises size 10mmx7mm.
The Bracelet is entirely tied and knoted with the hand.
Turkey, formerly country of commercial transit of turquoise, gave him its name.
Its synonym "Callaïte" (of the Greek "beautiful stone"), is employed little.
Turquoise was regarded as an amorphous stone until 1911, date where were discovered Turquoise crystals in Virgine (the USA). Hardness on the MOHS scale of hardness: 5-6. Density: 2,60-2,80