Robert Cotton

Black basalt is great quality and ordering the poly bags was very easy to manouver around. Would definitely order again as the company is very helpful in meeting your requirements
14 May 2024

ms michaela j smith

good fast service.product good,we will use gravelmaster again
14 May 2024


Excellent product, delivered as booked. Fits easy in to ground guard and looks great.
14 May 2024

Antony Leggett

Excellent aggregate for a permeable filler in my driveway
14 May 2024

Philip Riall

Product arrived on time and looks fantastic
13 May 2024

Lidia Webb

Excellent product, very promt and courteous service. Will happily use Gravelmaster again.
13 May 2024

Black Basalt 6mm

From £130.00 incl.VAT

Step 1 - Select your delivery postcode area (required)

Step 2 - Select the type you require


Require more than 10 Tonnes / Pallets? Call 0330 0585068 or click here


This stunning 6mm Black Granite is becoming increasingly popular because it is hard-wearing. It is perfect for making a bold statement in your garden and adding the wow factor. The stone reflects the light and will look beautiful in any garden to add style. Due to the durability of this stone it will remain looking beautiful in your garden for many years.

Black Basalt 6mm

Bag Size: Approx 850Kg Bulk Bags and 20kg Sealed Bags
Size: 6mm (Based on width of stone)
Uses: Landscaping, Pebble Dashing, traffic Management, Cast Stone, Aquatics and Terrazzo
Colour: Black (Grey When Dry)
Shape: Angular
Specification: BS EN 1260

Black Basalt Colour and Shape

The Black Basalt is a naturally quarried product which may result in slight variations in formation, size, colour or shape. The Black Basalt 6mm looks beautiful both wet and dry making it ideal for garden pathways and aquatics.

Availability on Black Basalt 6mm

We can usually accommodate a next day delivery service if the product is ordered before 12pm for an additional cost. The delivery is also subject to weather conditions and stock levels. All supplied in Bulk Bags (850KG) or Sealed bags (20KG).

Loose Load Deliveries

For a competitive loose load delivery price (bulk deliveries) for large areas please contact our sales team on 03300585068.

  • Loose load orders
    T:0330 058 5068
  • Delivery Lorry
  • Loose tipped 10, 20 and 30 tonnes

20 purchases during last 24 hours