Shell money most valued by the Native American tribes of the Pacific Coast from Alaska to northwest California was "Dentalium shell", a species of long narrow marine shelled mollusk, a tusk shell or scaphopod. The tusk shell is naturally open at both ends, and can easily be strung on a thread. This shell money was valued by its length rather than the exact number of shells; the "ligua", the highest denomination in their currency, was a length of about 6 inches. Farther south, in central California and southern California, the shell of the olive snail "Olivella biplicata" was used to make beads
Buddhist prayer beads be made from the wood of "Ficus religiosa" (bo or bodhi tree), or from "bodhi seeds", which come from rudraksha. Another general-purpose mala is made from rattan seeds; the beads themselves called "moon and stars" by Tibetans, and variously called "lotus root", "lotus seed" and "linden nut" by various retailers. The bead itself is very hard and dense, ivory-coloured (which gradually turns a deep golden brown with long use), and has small holes (moons) and tiny black dots (stars) covering its surface. Pacifying mantras are often at recited using white colored malas. Materials such as crystal, pearl, shell/conch or nacre