Treat finish as a finish—and prove the basalt identity.

Five discovery routes represent three quarantined canonical colour identities. Flamed Black and Honed Grey are legacy finish routes, not separate materials. Petrography, source and lot evidence must establish the offered programme.

Browse basalt Build request

Five routes, three canonical identities

Legacy discovery remains available while inventory and evidence consolidate under Black, Grey and Charcoal programmes.

Quarantined identity

Black Basalt

Black Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Quarantined identity

Grey Basalt

Grey Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Quarantined identity

Charcoal Basalt

Charcoal Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Finish alias

Flamed Black Basalt

Flamed Black Basalt is a legacy finish route for Black Basalt. The finish must not create separate material or inventory identity.

Finish alias

Honed Grey Basalt

Honed Grey Basalt is a legacy finish route for Grey Basalt. The finish must not create separate material or inventory identity.

Evidence before promotion

The governing specification is selected only after lithology and project scope are known.

Stable identity

stable-source-identity

Quarry/deposit programme and aliases; Black, Grey and Charcoal alone are insufficient material identities.

Petrographic identity

petrographic-basalt

Confirm basalt lithology, texture, grain, vesicles/amygdales, alteration, weathering and unstable constituents.

Governing specification

governing-specification

Project-approved dimension-stone specification selected after lithology review; commercial category alone does not establish applicability or compliance.

Source & lot

origin-and-lot

Country, state/region, quarry, flow/bench and production lot chain at the precision claimed.

Material vs finish

finish-identity

Flamed and Honed stored as finish options linked to the base material, not separate inventory identities.

Visual range

visual-range

Dry/wet colour, grain, vesicles, mineral features, fill/repair, finish and approval reference.

Dimensions

dimensions

Finished size, thickness/tolerance, calibration, flatness, squareness, edge and texture depth.

Physical evidence

physical-tests

Lot-linked absorption/density, compression, MOR, flexure and abrasion results under named methods.

Slip performance

slip

Exact finish tested for the relevant traffic, wet/dry state and destination method.

Weathering

weathering

Freeze–thaw/deicing, wetting/drying, salts, oxidation and vesicular/altered zones reviewed for exposure.

Finish controls

Approve exact stone, lot and surface together.

Flamed

Confirm thermal response, colour shift, texture depth, thickness loss, edges, slip and surface integrity.

Honed

Approve shade, scratches, wet slip, sealing and uniformity on the exact lot.

Sandblasted / Bush hammered

Control texture, edges, thickness, cleanability, abrasion and lot response.

Natural / Sawn

Define saw marks or natural texture, tolerances, slip, cleaning and weathering.

Application controls

Assembly and exposure determine suitability.

Exterior pavingEngineering review

Loads, thickness/module, bedding, drainage, finish, wet slip, abrasion, climate and lot evidence.

Steps & kerbsConditional

Geometry, support, edge/nosing, finish, slip, impact, salts and replacement.

Wall claddingEngineering review

Panel geometry, flexure/anchors, wind/seismic loads, joints, drainage and weathering.

Interior floors & wallsConditional

Finish, calibration, lippage, abrasion/slip, substrate, joints and maintenance.

Basalt RFQ checklist

Make identity, finish and evidence comparable.

1.Stable quarry/deposit identity and aliases
2.Petrographic basalt confirmation
3.Project-approved governing specification
4.Quarry, flow/bench and lot evidence
5.Application, exposure, loads and destination
6.Size, thickness, tolerance, edge and finish
7.Dry/wet range and vesicle/fill acceptance
8.Method-specific lot tests
9.Inspection and finish reference
10.Packing, Incoterm and handling

Harobal Stones

Luxury Architectural Crafts

Treat finish as a finish—and prove the basalt identity.

Browse basalt Build request

Five routes, three canonical identities

Legacy discovery remains available while inventory and evidence consolidate under Black, Grey and Charcoal programmes.

Quarantined identity

Black Basalt

Black Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Quarantined identity

Grey Basalt

Grey Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Quarantined identity

Charcoal Basalt

Charcoal Basalt remains quarantined because a colour/appearance name does not identify a quarry, deposit or stable material programme.

Finish alias

Flamed Black Basalt

Flamed Black Basalt is a legacy finish route for Black Basalt. The finish must not create separate material or inventory identity.

Finish alias

Honed Grey Basalt

Honed Grey Basalt is a legacy finish route for Grey Basalt. The finish must not create separate material or inventory identity.

Evidence before promotion

The governing specification is selected only after lithology and project scope are known.

Stable identity

stable-source-identity

Quarry/deposit programme and aliases; Black, Grey and Charcoal alone are insufficient material identities.

Petrographic identity

petrographic-basalt

Confirm basalt lithology, texture, grain, vesicles/amygdales, alteration, weathering and unstable constituents.

Governing specification

governing-specification

Project-approved dimension-stone specification selected after lithology review; commercial category alone does not establish applicability or compliance.

Source & lot

origin-and-lot

Country, state/region, quarry, flow/bench and production lot chain at the precision claimed.

Material vs finish

finish-identity

Flamed and Honed stored as finish options linked to the base material, not separate inventory identities.

Visual range

visual-range

Dry/wet colour, grain, vesicles, mineral features, fill/repair, finish and approval reference.

Dimensions

dimensions

Finished size, thickness/tolerance, calibration, flatness, squareness, edge and texture depth.

Physical evidence

physical-tests

Lot-linked absorption/density, compression, MOR, flexure and abrasion results under named methods.

Slip performance

slip

Exact finish tested for the relevant traffic, wet/dry state and destination method.

Weathering

weathering

Freeze–thaw/deicing, wetting/drying, salts, oxidation and vesicular/altered zones reviewed for exposure.

Finish controls

Approve exact stone, lot and surface together.

Flamed

Confirm thermal response, colour shift, texture depth, thickness loss, edges, slip and surface integrity.

Honed

Approve shade, scratches, wet slip, sealing and uniformity on the exact lot.

Sandblasted / Bush hammered

Control texture, edges, thickness, cleanability, abrasion and lot response.

Natural / Sawn

Define saw marks or natural texture, tolerances, slip, cleaning and weathering.

Application controls

Assembly and exposure determine suitability.

Exterior pavingEngineering review

Loads, thickness/module, bedding, drainage, finish, wet slip, abrasion, climate and lot evidence.

Steps & kerbsConditional

Geometry, support, edge/nosing, finish, slip, impact, salts and replacement.

Wall claddingEngineering review

Panel geometry, flexure/anchors, wind/seismic loads, joints, drainage and weathering.

Interior floors & wallsConditional

Finish, calibration, lippage, abrasion/slip, substrate, joints and maintenance.

Basalt RFQ checklist

Make identity, finish and evidence comparable.

1.Stable quarry/deposit identity and aliases
2.Petrographic basalt confirmation
3.Project-approved governing specification
4.Quarry, flow/bench and lot evidence
5.Application, exposure, loads and destination
6.Size, thickness, tolerance, edge and finish
7.Dry/wet range and vesicle/fill acceptance
8.Method-specific lot tests
9.Inspection and finish reference
10.Packing, Incoterm and handling