Hobbies And Interests
Marble Materials
Collectors primarily seek out glass marbles, but marbles have been made from other materials such as china and common clay. Stones, such as limestone, agate and even semiprecious stones, have also been used to make marbles.
Handmade Marbles
A handmade marble can be recognized by a pontil mark, left when the marble was removed from the rod that held it during its production.
Machine-Made Marbles
Machine-made marbles became popular during World War I, when the U.S. discontinued importation of handmade German marbles, according to CollectorsWeekly.com.
Types of Glass Marbles
German swirls are the most common of the handmade glass marbles. Other types include maypoles, with threads swirled near the surface; mists, with overlaying glass near the surface; micas, having silver flakes; solid color swirls; and opaques.
Collectibility
A large handmade marble in mint condition may be worth more than $1,000; unusual ones may fetch much more, according to MarblesGalore.com.