Size is as-packaged, or the diameter of loose marbles. ("D" is the diameter of round items other than marbles.)
This gemstone marble is for use with "Got All Your Marbles?" jewelry. A nodular mineral found in borax deposits in the desert clays of California and in rock beds in Nova Scotia. In it's natural form it is white with gray streaks.
Howlite is believed to help eliminate anger and stress. The color blue is said to relate to the throat and help one communicate.
This will ship directly from GotAllYourMarbles.com. Please allow 2 weeks for delivery, 4 weeks if International.