Precision Tool | Fathomholm Cleavage Matrix

Facet & Cleavage Calculator

Prevent catastrophic gemstone shattering during processing. Select your raw ore specimen, evaluate internal fracture density, and calculate optimal blade downforce, RPM gear speed, and anti-shatter safety probabilities.

Curated by Vermilion Lapidary Guild · Tested on Steam Demo

Vermilion Lathe Console · Master Arbor

Fathomholm Guild Calibrated • Tested on Steam Demo

1. Specimen Ore Chamber (38 Ground-Truth Minerals) Safe Quartz

2. Crystalline Cleavage & Structural Fissure State

Pristine Core 0 Defect Lattice Vug Inclusions Moderate Shear Basal Cleavage High Fracture Risk

3. Target Facet Geometry (17 Guild Cuts)

4. Pulley Arbor Rotation Speed (Lathe RPM) Recommended: Gear 3

Arbor Telemetry

Safe Tolerance

Standard Round Brilliant Cut Cleavage: Conchoidal / None

Anti-Shatter Safety Margin: --%

Shear stress within acceptable guild tolerance.

Mohs Scratch Hardness: 7.0 / 10

Chisel Downforce: Medium Downforce

Cognitive Hazard: 0 / Cut (Safe)

Estimated Commission Payout: 56s

Fathomholm Guild Standard Tested on Steam Demo

Lapidary faceting table evaluating gemstone cut quality and polish yield

Faceting Polish Table Cut Grade Evaluation

Jewelry mounting station assembling a precious metal ring with a precision faceted ruby table cut

Jewelry Mounting Station Ring Assembly & Metal Costs

How Cleavage Planes Dictate Blade Selection

In Abyssal Lapidary, every rough ore specimen features distinct crystalline cleavage planes that respond differently to mechanical shear stress. Mineral specimens such as Pigeon's Blood Ruby and Cornflower Sapphire possess exceptional Mohs hardness (9.0) with rhombohedral or basal parting, resisting low-speed steel blades while demanding diamond-edged saw blades at Gear 4 rotation.

Conversely, Imperial Topaz (Mohs 8.0) exhibits perfect basal cleavage along the (001) plane. Striking or faceting parallel to this natural cleavage axis can shear the crystal cleanly in half, reducing its auction value to mere scrap.

Anomalous Ores & Cognitive Hazard Limits

When processing deep-strata minerals like Red Chromophage, Blue Chromophage, or Shrift Stone, each pass of your cutting chisel generates cognitive Awareness. Reaching the peak threshold of 100 triggers full Mind Overload, disabling tool operation until restored by resting or consuming tea.