| LIAS | Earliest Jurassic epoch; form of limestone |
| CHALK | Form of limestone used in sticks to write on blackboards or in cubes to apply to the ends of snooker cues (5) |
| MARBLE | From "sparkle, shine" and with the variety "pavonazzo", named after Italian for "peacock", a form of limestone used in architecture and sculpture; or, a block, carving, statue, taw etc, made of said r |
| OOLITE | Grainy form of limestone |
| KENTISHRAG | Form of limestone visible in cliffs at the Cinque Port Hythe |
| ELGINMARBLES | The foreign drink from forms of limestone originally from Greece on show in London (5,7) |
| ALIAS | Assumed name of a type of limestone |
| ISCHIA | Island in the Bay of Naples where W. H. Auden wrote In Praise of Limestone (6) |
| COTSWOLD | Type of limestone forming drystone walls in parts of England; or, a double Gloucester-like cheese with chives and onion (8) |
| KARST | A type of limestone landscape underlain by a suite of dolines, drainage systems, gorges, poljes, potholes, sinkholes, streams etc (5) |
| BLARNEY | ____ Stone, block of limestone in Ireland that reputedly confers the gift of the gab when kissed (7) |
| OOLITIC | Type of limestone consisting of tiny spherical concentric grains within a fine matrix |
| CALCITE | Major constituent of limestone |
| CHARA | Green algae common in freshwater lakes of limestone districts |
| MENDIPHILLS | Range of limestone hills in Somerset (6,5) |
| EMOTIONLESS | Fragments of limestone so cold and hard? |
| MILESTONE | Director's cut of Limestone was a significant event (9) |
| CLINT | Block of limestone pavement, stone, cold for feet, initially |
| WOOKEYHOLE | Series of limestone caverns in the Mendip Hills (6,4) |
| CALX | Heel of limestone |
