108 Corals, Tibetan Turquoise, Amber. The Tibetan meditation mala, or bead necklace, is of 108 beads, often, as in the above necklace, in four segments of 27. Oppi Untracht opines that the basic Tibetan meditation bead number is 100, and that the extra eight beads are there in case the meditator misses a few en route through, the extras ensuring that at least 100 of the inner chants are achieved. He does however grant the number 108 a special Tibetan spiritual significance.
The number 108 has significance, in Buddhism, in Hinduism, and the 12th.century mathematician Fibonacci theorized that it could represent the wholeness of existence. Certainly it is an interesting number, if only because 1 x 2 x 2 x3 x 3 x3 = 108.

The Turquoise centre-bead is old Tibetan, dating back to the mid 1900s or earlier, its origin one of the mines of west Tibet; the two Amber beads are also Tibetan, older than the Turquoise, originally from the Baltic; the Corals, of a uniform beautiful deep orange-red, are again old, handcut in South India around the mid 1900s or earlier, from one good-sized Coral branch imported from the Mediterranean.