Dragon-type PokÃ©mon may be holding this item when caught. A Dragon Scale is an item introduced in Generation II that evolves Seadra into Kingdra when held while being traded. This item cannot be bought, only found, but can be sold for 1050. In the Johto region games, this item can be found in Mt. Mortar and at the PokÃ©athlon Dome in PokÃ©mon HeartGold and SoulSilver.
A millstone weighing a ton or two can do a lot of damage before it comes to rest. A millstone turning 125 revolutions per minute will destroy the millstone cover and I seen then destroy machinery in a mill and go through a 14 inch square log wall like butter and before they come to rest out side the mill.
Millstones or mill stones are stones used in grist mills, for grinding wheat or other grains. Millstones come in pairs. The base or bedstone is stationary. Above the bedstone is the turning runner stone which actually does the grinding. The runner stone spins above the stationary bedstone creating the scissoring or grinding action of the stones. A runner stone is generally slightly concave, while the bedstone is slightly convex.