Indiana's Glass-Sand Industry (HI-06)
Major expansion occurred after 1886, when low-cost fuel became available in the Trenton gas field of east-central Indiana. By 1905, 71 Hoosier factories produced about one-third of the glass in the United States.
During the early 1900's, the glass industry adopted stringent specifications, which disqualified most Hoosier sand deposits. About 99 percent of the raw sand had to be imported. This and exhaustion of the natural gas supply ended Indiana's glass-sand industry.
Our Hoosier State Beneath Us: Historical