OSRS Gem Mining vs Blast Mining: Profit, XP & Training Guide

Game screenshots and facts are cited from the Old School RuneScape Wiki (strategy, equipment, drops, and related pages). Writing is original editorial, not a copy of the wiki article.

Mining in Old School RuneScape sits in a strange spot. It can be one of the most AFKable skills in the game, or one of the most click-intensive, depending on which method you pick. Between levels 40 and 60, two options dominate the conversation for players who want to make money while training: gem rocks and the Blast Mine.

Gem rocks are the semi-AFK choice. You click a rock, wait, and collect gems that sell for consistent profit. Blast Mine is the active alternative — a minigame-style method in Lovakengj that turns dynamite and attention into ores up to runite. Both unlock close together, and both can fund your next gear upgrade while still moving the XP bar. The question is which one fits your playstyle, your bank, and your long-term account goals.

What This Guide Actually Compares

Gem rocks are a traditional Mining training method unlocked at level 40. You mine rock after rock, collecting uncut gems that can be sold directly or cut for Crafting experience and a chance at higher-value gems. The method scales with a charged amulet of glory, which speeds up mining and increases the chance of receiving a gem instead of nothing. Gem rocks are semi-AFK because each rock takes several seconds to deplete, and you can often stay on one rock for a while before moving.

Blast Mine is a very different beast. Unlocked at level 43, it is a mining activity in the Lovakengj area of Great Kourend. Instead of clicking rocks normally, you use dynamite to blast chunks of ore from a special pit. The activity requires constant attention, precise timing, and a steady supply of dynamite. The payoff is access to higher-tier ores, including runite at higher levels, which can translate into strong profit.

Both methods have a place in the mid-level Mining journey, but they attract different types of players. This guide will walk through requirements, mechanics, profit expectations, XP rates, equipment, common mistakes, and the time-versus-cost decision.

Requirements and Unlocks for Both Methods

Before you choose a method, make sure your account is set up. The good news is that both gem rocks and Blast Mine become available relatively early, and you can reach their requirements through questing or fast iron powermining.

If you are starting from level 1, the fastest route to these unlocks is questing. Completing Doric's Quest, The Dig Site, Plague City, The Giant Dwarf, The Lost Tribe, and Another Slice of H.A.M. grants a total of 27,525 Mining experience, taking you from level 1 to 37. After that, mining iron from level 15 to 43 or 45 is the standard route. Iron powermining in the Mining Guild or a triangle spot can easily push you into the low 40s in a couple of hours. If you have no interest in tick manipulation, simply mine iron at a three-rock triangle until level 70 and then switch to other methods.

Once you have the levels, the choice between gem rocks and Blast Mine becomes a playstyle decision. Both require some upfront setup, but neither is locked behind difficult quests or expensive gear.

Gem Mining: Mechanics, Profit, and XP

Gem mining is straightforward. You find a gem rock, click it, and wait. Each rock has a chance to yield an uncut gem, ranging from common opals and jades up to dragonstones and onyx at very high Mining levels. The key item that makes gem mining worth your time is a charged amulet of glory. The glory significantly increases the speed at which you mine gem rocks and also increases the chance of finding a gem. Without a glory, gem rocks feel slow and the profit per hour drops noticeably.

Because gem rocks deplete slowly, you can often stay on the same rock for several seconds before it empties. This makes the method semi-AFK: you can glance at the screen every 30 seconds or so, click a new rock, and go back to whatever else you are doing. It is nowhere near as AFK as something like ammonite crabs or redwoods, but it is far more relaxed than Blast Mine or 3-tick granite.

Profit from gem mining comes from selling uncut gems. Common gems like sapphires and emeralds have stable values driven by Crafting and jewellery demand. Higher-tier gems like rubies and diamonds sell for more, and if you get a dragonstone or onyx, it is a nice bonus. Because the gem table changes with your Mining level, higher levels gradually unlock better gem rates. This means gem mining becomes more profitable as you level, but it never reaches the bursty profit spikes of Blast Mine runite ores.

XP rates for gem mining are respectable but not top-tier. On a mid-level account, you can expect around 40,000 to 60,000 XP per hour without tick manipulation, depending on your Mining level and whether you are using a glory. That is lower than iron powermining or 3-tick granite, but the trade-off is low attention and steady profit. If you are willing to tick-manipulate gem rocks, the XP jumps higher, but then you lose the semi-AFK benefit. Most players use gem rocks as a profitable middle ground between AFK and efficiency.

Blast Mining: Mechanics, Profit, and XP

Blast Mine is an active training method in Lovakengj. Instead of mining rocks normally, you use dynamite to blast chunks of ore from a designated area. The process involves clicking the deposit, placing dynamite, lighting it, and then collecting the ore fragments. Each blast yields a mix of ores based on your Mining level, from coal and gold up to mithril, adamantite, and eventually runite.

The method is much more engaging than gem rocks. You are constantly moving, clicking, and managing your inventory because the blasts require empty space for ore. If your inventory is full, you will waste explosions. This high attention requirement is the main reason many players avoid Blast Mine despite its strong profit and XP.

Profit from Blast Mine comes from the ores you collect. Runite ore is especially valuable, and even adamantite and mithril add up quickly. However, you must subtract the cost of dynamite. Dynamite can be bought from other players or made through a combination of mining and Crafting, but either way it represents a real cost per blast. The profit per hour is therefore highly sensitive to dynamite prices and your efficiency at the minigame. If you are slow or buy dynamite at a bad price, you can easily lose money or break even.

XP rates for Blast Mine are strong. Active players can expect between 55,000 and 75,000 XP per hour at appropriate levels, which rivals or beats most AFK methods. The League guide lists Blast Mine at 43 Mining with a base XP range of 45k–75k per hour; main-game rates are similar but depend on your level and efficiency. At higher Mining levels, the XP and ore quality both improve, making Blast Mine a contender all the way to 99 if you enjoy the gameplay loop.

Side-by-Side: XP, Profit, and Attention

The table below summarises the key differences between gem rocks, Blast Mine, and iron powermining (as a baseline alternative). XP rates are approximate and vary with level, equipment, and player skill. Always verify current rates on the Pay-to-play Mining training page before committing hours to a method.

The table shows the fundamental trade-off. Gem rocks sacrifice XP for low attention and steady profit. Blast Mine demands high attention but rewards you with better XP and the chance at valuable ores. Iron powermining is the pure XP play, but you earn nothing from it. Your choice should reflect how much attention you can give and how much you value immediate gold over skill progression.

Equipment That Shifts the Balance

Both gem mining and Blast Mine benefit from the same core Mining equipment, but a few items have outsized effects on each method.

Pickaxe. Always use the best pickaxe you can. Higher-tier pickaxes reduce the time between mining rolls, which directly increases XP and profit per hour. Dragon, crystal, and infernal pickaxes are long-term goals. The infernal pickaxe has a 1/3 chance to combust ore on successful mining, which can be useful for powermining but is less relevant for gem rocks or Blast Mine because you want the resources, not less of them. For gem rocks, a crystal pickaxe is ideal if you have shards. For Blast Mine, the pickaxe only matters for the initial mining phases, but a dragon pickaxe is still a nice upgrade.

Prospector outfit. The full set grants a 2.5% Mining XP bonus. It is earned from the Motherlode Mine, so by the time you have it, you may already be beyond the early gem/Blast levels. Still, if you own it, wear it for every Mining method.

Varrock armour. Varrock armour 1 and above give a 10% chance to mine two ores at once, including gems. This is a flat 10% increase in resource yield, which means more profit from both gem rocks and Blast Mine. The diary requirements are modest, making this one of the best early upgrades for money-making Mining.

Amulet of glory. This is the single most important item for gem mining. A charged glory increases mining speed at gem rocks and boosts gem chance. Without it, gem rocks are barely worth the time. For Blast Mine, a glory is not required, but it does not hurt to wear one if you have no better amulet.

Celestial ring. The celestial ring, purchased from the Shooting Stars shop, provides an invisible +4 Mining boost and has a 10% chance to mine an extra resource up to adamantite. The invisible boost helps both methods, and the extra ore chance applies to Blast Mine ores as well. If you have stardust to spare, this is a great investment.

Common Mistakes That Eat Your Profit

Both methods have simple but costly mistakes. Avoiding these will keep your gold stack growing instead of shrinking.

• Gem mining without a glory. If you are mining gem rocks and your amulet of glory is uncharged, you are leaving profit on the table. Recharge it at the Fountain of Heroes or use charge dragonstone jewellery scrolls.
• Ignoring Varrock armour. That 10% double ore chance is massive over hours of mining. Complete the easy Varrock diary tasks to unlock it.
• Using a bad pickaxe. Every tick between rolls adds up. Upgrade to the best pickaxe you can afford and wield.
• Blast Mine with a full inventory. If your inventory is full when you light dynamite, you waste explosions and lose money. Keep at least a few free slots at all times.
• Buying dynamite at peak prices. Dynamite prices fluctuate. If you buy a large supply when prices are high, your profit per blast drops significantly. Check the GE and consider making your own dynamite if the components are cheaper.
• Expecting AFK from Blast Mine. Blast Mine is not AFK. If you treat it like gem rocks, you will miss clicks, waste dynamite, and earn far less XP and profit.

Time-to-Goal and Cost Tradeoffs

Let's put the two methods into a realistic training plan. Suppose you are level 43 Mining and want to reach level 70 for the Mining Guild's upper level or access to better rocks. The total XP needed from 43 to 70 is roughly 600,000 XP. If you choose gem rocks at around 50k XP/h, you are looking at about 12 hours of semi-AFK play. During those 12 hours, you will bank a steady supply of gems worth a few million gold, depending on luck and market prices.

If you choose Blast Mine at 65k XP/h, the same goal takes about 9 hours of focused play. You will likely earn more total profit from ores, but you will also have spent money on dynamite, and you must be actively clicking for all 9 hours. That is a significant attention cost.

Some players mix methods: use gem rocks during work or study, and Blast Mine during dedicated evening sessions. This balances profit, XP, and sanity. The cost side also matters. If you cannot afford a glory, Varrock armour, or dynamite, you might need to spend time making money elsewhere. This is where buying gold or a service can become an honest shortcut.

When Buying Gold or a Service Makes Sense

OSRS is a game about time. If you have limited playtime, spending 12 hours semi-AFK at gem rocks might not be worth it compared to buying the gold you would have earned and spending that time doing something you enjoy more. Buying gold can also fund the upfront costs of Blast Mine — dynamite, a better pickaxe, a glory — so that every hour you do train is more efficient.

Similarly, account boosting services can train Mining for you while you are offline or busy with real life. This is not against the spirit of the game if you use a reputable marketplace and understand Jagex's rules. The honest shortcut is acknowledging that your time has value. If an hour of your time is worth more than the cost of the gold or boost, then buying is a rational decision, not cheating yourself.

If you decide to go this route, view live gold rates and compare them to the profit you would make from gem mining or Blast Mine. Many players find that buying a small amount of gold to fund supplies is cheaper than grinding low-profit content for hours.

Practical Next Steps

1. If you are below level 40, complete the six early quests for quick XP, then powermine iron to 43.
2. Buy or charge an amulet of glory, and unlock Varrock armour 1 if you do not already have it.
3. Spend 30 minutes at gem rocks and 30 minutes at Blast Mine. Track your XP and profit for each session.
4. Compare your results to the table above. Decide whether you prefer low attention with steady gems or high attention with ore spikes.
5. Check current dynamite and gem prices on the GE, and read the main Mining training wiki page for any changes to rates or mechanics.
6. If your time is more valuable than the gold, consider buying gold to fund supplies or pay for a training service.

Sources

• Pay-to-play Mining training – OSRS Wiki
• Demonic Pacts League/Guide/Mining – OSRS Wiki
• Blast mine image source
• Gemstone mining tick manipulation image source