1. A mineral form of strontium sulfate, typically colorless or pale blue, used in the production of strontium compounds and fireworks.
Usage: technical; mineralogy

1. Of or relating to the sky or heavens; celestial.
Usage: archaic; poetic

Examples

• Celestine deposits are mined in several countries for industrial use.
• The geologist identified the blue crystals as celestine.
• Celestine is valued in the manufacture of red fireworks.
• The mineral celestine often occurs in sedimentary rocks.
• In poetic language, celestine light refers to the glow of the heavens.