Diff - oilstone - Starsand Island Wiki

11 Overview

33 Oilstone is one of the rarest and most valuable mining resources in Starsand Island. Found deep within the Moonlit Forest, it is a critical ingredient for endgame crafting at Furnace III. Almost every top-tier smelting recipe requires Oilstone, including Flamecore Ingot, Aurorite Ingot, Lunar Core, and Eternal Alloy. Because of its limited spawn locations and the tools needed to harvest it, Oilstone is often the bottleneck resource that gates players from reaching the highest equipment tiers.

66 How to Mine Oilstone

88 Oilstone deposits require the Impact Hammer or a higher-tier pickaxe to mine. The basic pickaxe and Impulse Pickaxe cannot break Oilstone nodes. The Impact Hammer blueprint is available from Zerine's General Store after completing the Junior Crafter certification, and the tool itself is crafted at a Worktable II.

1010 Oilstone nodes have a distinct bright red-orange color that makes them stand out against the darker cave walls. They are embedded in cave walls and floors, and each node yields a small number of Oilstone pieces per harvest.

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1212 Where to Find Oilstone

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1414 Harvest Yard Cave (Primary Location)

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1616 The main Oilstone farming location is a cave at the Harvest Yard Camp area within the Moonlit Forest. This cave contains the most abundant and concentrated spawn of Oilstone deposits in the game, making it the most efficient farming spot by far.

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1818 To reach the Harvest Yard cave:

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2020 Enter the Moonlit Forest and progress past the Crystalith boss area.Pass through the bronze gate (requires clearing vine barriers and meeting access requirements).Navigate through the forest until you reach Harvest Yard Camp.Look for the cave entrance near the camp. Drop down carefully below the bubble bridge to find the cave with the spirit and Oilstone deposits.

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2222 The cave's advantage is its high node density relative to travel time. You can mine multiple Oilstone nodes in a single run before needing to leave, which minimizes downtime compared to scattered nodes found deeper in the forest.

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2424 Alternative Sources

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2626 Beyond the Harvest Yard cave, Oilstone can occasionally be found in:

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2828 Treasure chests scattered throughout the Moonlit Forest, though this is unreliable and yields small quantities.Gifts from certain romanceable NPCs who may give Oilstone as a random gift once your relationship is high enough.Deeper Moonlit Forest zones with dark stone layers, though these are harder to reach and less concentrated than Harvest Yard.

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3030 Furnace III Recipes Using Oilstone

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3232 Oilstone is processed at Furnace III, the highest-tier smelting station. Every major endgame ingot and alloy requires Oilstone as a component. Below is a summary of the Furnace III products.

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3434 ProductDescriptionKey UsesFlamecore IngotA heat-infused ingot made with Oilstone and other rare materialsHigh-tier weapons, advanced equipment, Eternal Alloy ingredientAurorite IngotThe premier crafting metal with the best base stats for tools and weaponsTop-tier tools (Aurorite Pickaxe), best weapons and armorLunar CoreA crystalline core with unique lunar propertiesAdvanced machines, specialized crafting componentsEternal AlloyThe ultimate composite metal combining multiple high-tier ingotsEndgame equipment, the most powerful crafted items in the game

3535 Eternal Alloy sits at the top of the crafting chain. It requires Flamecore Ingots, Alloy, and Coal, all of which trace back to Oilstone at some point. This makes Oilstone the single most important resource for endgame progression.

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3737 Why Oilstone Matters for Endgame

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3939 The importance of Oilstone cannot be overstated for players pushing into the late game. Here is why it matters:

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4141 Tool progression: The Aurorite Pickaxe, crafted from Aurorite Ingots, is the best mining tool in the game. Without it, certain high-tier nodes in the deepest forest zones remain inaccessible.Equipment upgrades: Top-tier weapons and armor all require Furnace III products that depend on Oilstone.Vehicle crafting: Advanced vehicles and mechanical components need Eternal Alloy or its sub-components.Automation: High-level Robot Terminal upgrades and endgame mechanical recipes use refined Oilstone products.

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4343 Farming Tips

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4545 Clear enemies first. Cave interiors often have tighter enemy spawns near Oilstone deposits. Kill nearby hostiles before you start mining to avoid getting interrupted.Bring healing items. The deeper areas of the Moonlit Forest deal significant damage. Stock up on recovery items before heading out.Respawn cycle. Oilstone nodes respawn after a set amount of in-game time. Plan to revisit the Harvest Yard cave every few in-game days for another round of mining.Combine with Gold Ore runs. Since both Gold Ore and Oilstone are found in the Moonlit Forest, combine your farming trips to maximize efficiency. Mine gold at Grain Haven and Mural Valley, then swing by Harvest Yard for Oilstone.Stockpile early. Start accumulating Oilstone as soon as you have the Impact Hammer, even if you cannot use it yet. When you unlock Furnace III, you will burn through your supply quickly.

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4747 Oilstone vs Other Rare Ores

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4949 OreLocationPickaxe RequiredPrimary UseGold OreMoonlit ForestImpact HammerGold Ingots, Alloy, Gold WireOilstoneMoonlit ForestImpact HammerFurnace III endgame recipesMagnetiteMoonlit ForestImpact HammerMagnets, electrical componentsAurorite OreSerenity's RestPrimorite PickaxeAurorite Ingots (top-tier tools)

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