A type of glass that has a milky or opalescent appearance.
La opalina que compré en la feria era un hermoso objeto decorativo que reflejaba la luz de manera mágica.
The opaline I bought at the fair was a beautiful decorative object that reflected light in a magical way.
La opalina del jarrón brilla con una luz sutil y encantadora.
The opaline of the vase shines with a subtle and charming light.