Cut a Rock Index Progress & Auras

The Index is Cut a Rock’s collection ledger and the quiet path to auras. Cash buys pickaxes and cutters. Index progress unlocks the aura layer that multiplies what those tools already earn. This guide explains how Index logging works, when to run Index mode versus Cash mode, how to treat aura unlocks, how to blitz event stones, and what you should never vendor before it is cut.

If you are still learning the base loop, skim How to Play first. For sell values and upgrade order, keep Make Money open. Chase stones and Nova Prism routes live on Rare Rocks.

How the Index works

Every time you cut a rock and reveal a material type you have never logged, the Index records that entry once. That first reveal advances collection progress. The next ten copies of the same material mostly become Cash when you sell them. They do not push Index completion again.

Practical implications:

• Index cares about unique materials, not raw rock count.
• Farming one Common forever pads Cash and starves Index.
• A flashy duplicate is still a duplicate after the first log.
• Uncut rocks sitting in Pocket do not count until the cutter finishes and you collect.

Open the Index UI often enough that you recognize empty slots. When a board can roll something missing, that stone deserves a Pocket slot even if a Common would sell faster.

Index mode versus Cash mode

Treat these as two session mindsets, not two different games.

Cash mode (default economy)

Goal: fund Eyesight, Pocket, cutter levels, and the next pickaxe on the Make Money ladder.

• Prioritize Uncommons with strong sell prices (Petalstone early).
• Fill backpacks, cut under boosts, Sell All, buy the planned upgrade.
• Accept duplicate materials as fuel.
• Keep cutters loaded so offline cutting still pays (AFK & Offline).

Index mode (collection focus)

Goal: close empty Index icons and move aura unlock thresholds.

• Prefer stones that can roll unknown materials over guaranteed low Commons you already own.
• Protect limiteds and event stones until they are cut and logged.
• Still cut Commons when you need Cash to raise attempts per hour — a weak pickaxe makes Index mode slower, not purer.
• Stop Index mode when your next pickaxe or Pocket upgrade is the real bottleneck.

Most strong players hybridize: Cash mode until Copper/Iron feel online, short Index bursts when a missing icon is realistic, then back to Cash.

Room boards and what fills Index early

Room 1 baseline remains:

• Common 85%
• Uncommon 15%
• Nova Prism 0.1%

Commons teach the Index the starter material set quickly. Uncommons add the early mid-tier entries. Nova Prism is both a Cash flex and an Index milestone — details on Rare Rocks and ranks on Rock Tier List.

Deeper rooms and floors change board weights as you break through with Power. More attempts per hour usually beats standing in Room 1 hoping for a miracle. Pair Index goals with room progression notes on Rooms & Floors and Power training on Power & Anvils.

Day-7 limiteds: the anti-RNG Index path

The weekly daily track is the most reliable Index helper Duality Works ships:

• Day 1 economy boost (Cash)
• Day 4 free pickaxe step (attempts)
• Day 7 limited rocks that help Index: Nova Prism, Genesis Monolith, Royal Relic, Sun Scarab

Missing Day 7 hurts collectors more than missing a middling midweek Cash reward. Log in, claim, cut, and confirm the Index icon filled before you vendor anything shiny from that reward. If Duality Works later sells a missed-day claim, compare Robux cost to how badly you need that empty slot.

Redeem map tickets through the Ticket UI on Codes during the same login so Power or Cash bursts fund the rooms where remaining icons live.

Aura unlock mindset

Auras unlock from Index progress, not from selling the same Seashell fifty times. Exact aura names, thresholds, and multipliers can shift with patches — always trust the live client text over a Discord screenshot.

Community and script UI notes (treat as observed, not gospel):

• Higher Index completion unlocks stronger auras over time.
• Some client-facing and script UIs mention multipliers that can climb toward roughly 12x on top-end auras.
• Some helper tools advertise auto-claim for completed aura rewards — if you play manual, open the aura/Index panels yourself after big Index jumps so you do not leave a finished unlock sitting unclaimed.

Aura mindset rules that stay stable even when numbers patch:

1. Unique first. Log the new material before optimizing sell value.
2. Do not brick Cash. An aura multiplier on a Stone pickaxe still loses to Copper without the aura.
3. Claim when ready. After a Day-7 or event blitz, check aura claim UI before you AFK.
4. Client wins. If a guide memory disagrees with the shop or Index tooltip, follow the client.

Scripts that promise guaranteed aura rolls or Index skips are risk territory — read Scripts before you paste anything.

Event Index blitz

Weather and banner stones also fill Index while the event is live. When Latest Update or the in-game banner flags a weather window:

1. Log in at the start of the window.
2. Collect event stones before vanity anvil AFK or random Room 1 loops.
3. Cut and collect during the banner so materials actually log.
4. Check Index and aura claim UI before the event ends.
5. Resume Cash mode after the pool rotates out.

Event stones that leave your inventory uncut when the banner ends are the classic collector mistake. Pocket space matters — dump duplicate Commons if you need room for a timed Index entry.

What not to vendor

Never Sell All on autopilot when any of these are sitting uncut or freshly cut but unchecked:

• Day-7 limiteds (Nova Prism, Genesis Monolith, Royal Relic, Sun Scarab) before Index confirmation
• Weather/event stones during an active banner
• Any rock you suspect rolls a material icon you still lack
• Showcase Prism/limited cuts queued behind a five-rock cutter line with no Eyesight read

Safe to vendor after Index confirmation:

• Duplicate Commons you already logged
• Duplicate Uncommons after the material icon is filled
• Extra event stones once that event material is logged and you need Cash

If you are unsure whether an icon is filled, open Index first. Two seconds of UI beats ten minutes of regret.

Session templates

Hybrid hour (recommended): claim dailies/tickets → Cash routes for one planned upgrade → 15–20 minutes Index hunting on the deepest efficient board → load cutter → logout checklist from AFK & Offline.

Index blitz hour: confirm missing icons → farm boards/events that can roll them → cut with Eyesight → claim aura progress → return to Cash before your upgrade ladder stalls.

Post-patch hour: skim Latest Update, re-check Index thresholds and aura tooltips, then ignore outdated multiplier screenshots.

Mistakes that stall Index and auras

• Selling limiteds uncut
• Pure Prism obsession with Stone still equipped
• Ignoring Day 7
• Skipping event windows for anvil AFK
• Never opening Index, so you cannot tell unique from duplicate
• Trusting script aura claims over client text
• Letting finished cuts sit uncollected so new materials never enter inventory

Related reading

• Rare Rocks — Nova Prism and limited hunt routes
• Make Money — Cash ladder that funds Index attempts
• How to Play — loop, controls, first session
• Rooms & Floors — deeper boards for new materials
• AFK & Offline — cutter loads while Index waits
• Rock Tier List — material value ranks
• Codes — tickets that fund Power/Cash
• Scripts — autofarm and aura-helper risks

Fill Index on purpose. Sell duplicates on purpose. Claim auras when the client says they are ready. That discipline is how Cut a Rock collectors pull ahead without abandoning the Cash engine that makes every new material easier to find.