General Ruby & Sapphire Co., Div. of EWM General Corp.

Company record

General Ruby & Sapphire Co., Div. of EWM General Corp. focuses on the bespoke fabrication of sapphire and ruby components. Its catalogue spans round windows, rods and tubes, precision balls, specialty parts, orifices, endstones, various jewel shapes—including rounds, rectangles and bearings—electronic insulators, substrates, wear‑resistant parts, and even pure scrap material. In addition to sapphire and ruby, the company processes quartz, calcium fluoride, barium fluoride, magnesium fluoride, germanium, germanium oxide and silicon. These engineered products serve applications such as lamp envelopes, light pipes, combustion‑chamber and under‑sea environments, as well as guides for camera film and magnetic tape.

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