Basalt
OSRS Grand Exchange price, high alch, and buy limit for Basalt (Members). The crushed rock looks like it may react to other materials.
Buy offer (Wiki low)
965 gp
Sell offer (Wiki high)
995 gp
High alch
18 gp
Low alch
12 gp
GE buy limit / 4h
10,000
Shop value
30 gp
Weight
0 kg
GE tax (2% on sell)
-19 gp
Net flip profit
11 gp (1.1%)
BasaltMembers
Instant buy 995 · Instant sell 965 · GE limit 10,000/4h
Tax uses the live 2% Grand Exchange rate (capped at 5M GP per item).
Basalt price & alch
Live Grand Exchange offers for Basalt: buy near 965 and sell near 995. High Level Alchemy yields 18; low alch is 12. The GE buy limit is 10,000 every 4 hours. After the 2% GE tax (19 at a sale of 995), estimated net flip profit is 11 per item (1.1% ROI) — about 110K at a full limit if every unit fills..