Basalt

The crushed rock looks like it may react to other materials. Basalt is a members-only item traded on the Old School RuneScape Grand Exchange.

Basalt trades for 736 gp, making it one of the cheapest items on the GE. The buy-sell spread is 26 gp (3.5%), which indicates a tight spread common in actively traded items.

Basalt has very low trading volume (1 recent trades), which means wider spreads and slower fills. With a buy limit of 10,000 every 4 hours, you can trade in large quantities per session.

Basalt currently has a negative margin of -33 gp after tax, meaning instant flips would result in a loss at these prices. Margins fluctuate throughout the day — check back later or set a price alert to be notified when the margin turns positive.

Basalt has a high alchemy value of 18 gp, but at the current buy price it is not profitable to alch.

Set a price alert to get notified when the margin changes, or add this item to your watchlist for quick access.