Basalt · Black & dark grey
G684 black basalt
A fine-grained black basalt. Smooth faces read black, split and flamed faces a dark charcoal, so one stone gives a sharp black coping and a grippy grey sett.
- Suits
- Setts and kerbs, Steps, Pool and pond coping, Paving
- Samples
- Samples confirmed with you
- Supply
- From our own stock, or selected for you from the market
- Before shipping
- Photographs of the actual lot, in your finish
G684 black basalt
Ways to use this stone.
Cut to your sizes and finish, from a lot you approve.
G684 black basalt
Questions buyers ask.
- Stone
- Basalt
- Quarried in
- China. G684 is a trade code supplied from more than one quarry.
- Look
- Black to dark charcoal with fine white specks; very fine-grained.
- Finishes
- Polished, honed, flamed, bush-hammered, sawn, split or tumbled.
- Care
- Dense and hard-wearing outdoors. Dark stone gets hot in full sun, so around a pool choose a textured finish and test it in the sun first.
Is G684 a granite or a basalt?
It is a basalt, a fine-grained volcanic stone, though it is often sold alongside granites under its G code. It is denser than most granites and keeps its dark colour outdoors.
Is G684 the same as Australian bluestone?
No. Bluestone in Australia usually means a basalt with small natural holes, such as Hainan Black. G684 is a closer-grained black basalt with a different look.
What is G684 used for?
Setts and kerbs, steps, pool and pond coping, paving and wall copings. Smooth edges give a crisp black line; split or flamed tops give grip.
Basalt
Working with basalt.
- 01
Dense and dark
Basalt is a fine-grained volcanic stone, denser than most granites. It weathers well outdoors and keeps its dark colour.
- 02
Finish sets the colour
Polished or honed it reads black; flamed, bush-hammered or split it turns a paler charcoal grey and gives grip underfoot.
- 03
Cut to the schedule
Setts, kerbs, steps and copings are cut to your schedule and numbered, then crated in installation order.
G684 black basalt
Quote for your area.
Tell us the area, the sizes and the finish, and we quote and send photographs of the actual lot. We usually reply within 24 hours.