Black tourmaline coremembers
“The blackened heart of the Grotesque Guardians.”
About this item
The black tourmaline core is an item dropped by the Grotesque Guardians that can be found on the Slayer Tower's rooftop. It can be used to upgrade the Bandos boots to create guardian boots, after which the core is used up. This process is irreversible. In the book The Living Statues, it's revealed that the core was used by the Bandosian general Snaarldor to animate the statues of the Slayer Tower, giving life to the Grotesque Guardians as well as all the gargoyles in the tower.
From Black tourmaline core on the Old School RuneScape Wiki, used under CC BY-NC-SA 3.0.
- Buy limit
- 5 per 4h
- High alch
- 24,900
- Shop value
- 41,500
- Traded last hour
- 8
Alching it yields 24,748 after the nature rune, 280,252 less than it costs to buy. Alching it is a loss, so the price floats free of the alch value.
One unit, right now
- Buy at (instant-sell)traded 1h ago
- 305,000
- Sell at (instant-buy)traded 1h ago
- 321,047
- Spread
- 16,047
- Tax on the sale
- −6,420
- Margin per unit
- 9,627
Breakeven sell price is 311,225 — a spread of 2.04% just to clear the tax.
Your 1.00M
- Buy limit per 4 hours
- 5
- Units you can fund
- 3
- Capital required
- 915,000
- Profit per window
- 28,881
Price is stale, governed by the sell side at 1h. You can get in faster than you can get out.
Prices refreshed 5m ago.
Against its own history last 90 days · 91 daily bars
wider than 68% of the last 91 days
4% of the way up its 90-day range
Measured with medians rather than averages, because one spike — an update, a streamer, a brief squeeze — drags an average around for weeks afterwards and makes everything since look ordinary.