The rosary-bracelet consists of nine oval-shaped Xianzhu bead spaced by small amber beads. The pattern on each bead is of irregular shape, including strips, waves, and circles, all in different colors ranging from white to brownish black.|18th century.||Length: 9 1/2 in (24.2 cm) Bead: 20mm to 30mm|十八世紀 天然線珠手串 九粒|纏絲瑪瑙是各種顏色以絲帶形式相間纏繞的一種瑪瑙，因相間色帶細如油絲，所以稱為纏絲瑪瑙。有的紅白相間，有的藍白相間，有的黑白相間，或寬如帶，或細如絲，甚為美妙，古稱截子瑪瑙。纏絲瑪瑙也是玉雕中經常使用的品種。