風棱石，風磨石已被風吹起的沙子磨成形、磨光並磨成面的石頭
A stone that has been shaped, polished, or faceted by wind-driven sand.
黑斑，瑕疵黑塊或黑斑，如磨光的石頭上的黑斑
A dark region or blemish, as on a polished stone.
貝殼串珠由磨光后的貝殼製成的穿成鏈或帶狀物的小圓柱形珠子，早先某些美洲土著民族用其作為貨幣與珠寶或用於部落之間禮儀交換之物
Small cylindrical beads made from polished shells and fashioned into strings or belts, formerly used by certain Native American peoples as currency and jewelry or for ceremonial exchanges between groups.
擦亮者，磨光工人把東西擦亮的人，尤指用來上不光的軟皮革或布料來擦亮的人
One that buffs, especially a piece of soft leather or cloth used to shine or polish.
