01 / 01NORTHERN GEOLOGICAL SUPPLIES
China Graph Pencils
ROCK & CORE MARKING PENCILSSpecialized wax-based chinagraph pencils designed to write cleanly on wet rock faces, drill core, polished minerals, glass, and metal without scratching.
Core compositionHeavy pigmented wax formulation
Applicable surfacesRough rock, drill cores, wet samples, glass, metal, plastic
Configuration, availability and delivery confirmed with your quotation.
01 / FIELD CAPABILITIES
Built for the task.
- Writes effortlessly on damp, wet, or polished rock and core surfaces
- Pull-string paper wrapping eliminates the need for knife or pencil sharpener in the field
- Non-porous pigment stays legible in extreme weather and core-washing conditions
- Wipes cleanly off non-porous surfaces when no longer needed
02 / TECHNICAL DETAILS
Precision, specified.
- Core composition
- Heavy pigmented wax formulation
- Applicable surfaces
- Rough rock, drill cores, wet samples, glass, metal, plastic
- Design
- Peel-off paper wrapping with pull-string (no sharpener needed)
- Moisture resistance
- Fully waterproof and moisture resistant
Key specifications and field-use details. Exact configuration may vary by model or selected variant.
Northern Geological Supplies
Comprehensive geological, mining, exploration tools, and sample testing supplies.
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