| Part of Speech | Definition | |
| Expression | 1. (Min.), radiated barite, or barium sulphate, found in roundish masses composed of radiating fibers, first discovered near Bologna. It is phosphorescent when calcined.[Websters]. | |
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Common Expressions: BOLOGNA STONE
| Expressions | Definition | ||
| Bologna stone | (Min.), radiated barite, or barium sulphate, found in roundish masses composed of radiating fibers, first discovered near Bologna. It is phosphorescent when calcined. Source: Webster's Revised Unabridged Dictionary. | ||
Source: compiled by the editor from various references; see credits. | Top | ||
Specialty Expressions: BOLOGNA STONE
| Expressions | Domain | Definition | |
| Bologna Stone | Literature | A variety of barite, found in masses near Bologna. After being heated, powdered, and exposed to the light it becomes phosphorescent in the dark. Source: Brewer's Dictionary. | |
| Bologna stone | Mining | A nodular, concretionary, or round variety of barite, composed of radiating fibers; phosphorescent when calcined with charcoal. Syn: Bolognian stone; Bolognan stone; Bologna spar. (references) | |
Source: compiled by the editor from various references; see credits. | Top | ||
