marble
Let an agent identify marble and its varieties, explain its formation and properties, relay stone standards, quarrying and conservation information, and separate geological marble from trade marble and from other polished stones.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Identify What marble this is.
Rock
Geological identification.
Rock
Rock.
- What defines marble geologically, and how is it distinguished from limestone and other stones? definition
- Is the stone a true marble or a trade marble? boundary
Variety
Varieties and quarries.
Variety
Variety.
- Which variety or quarry name applies, and what are its characteristics? provenance
- Which entry fits the specific stone? action
Geology Formation and properties.
Formation
Formation.
Formation
Formation.
- How does marble form from limestone, and what controls colour and veining? definition
- Which entry fits metamorphism? action
Properties
Properties.
Properties
Properties.
- What are the physical properties, and how are they tested? measurement
- Which standards define the tests? provenance
Use Stone industry and art.
Quarrying
Quarrying and fabrication.
Quarrying
Quarrying.
- How is marble quarried, cut and finished, and what safety rules apply? provenance
- Which entry fits the stone industry? action
Art
Sculpture and architecture.
Art
Art.
- How has marble been used in sculpture and architecture through history? provenance
- Which references are standard? provenance
Care Conservation.
Conservation
Conservation.
Conservation
Conservation.
- How is marble conserved against weathering, pollution and staining? provenance
- Which entry fits stone conservation? action
Maintenance
Maintenance in buildings.
Maintenance
Maintenance.
- How are marble surfaces cleaned and maintained, in general terms? provenance
- Is the question about a specific monument, which needs a conservator? boundary
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
- Other names and narrower kinds
- fine-grain marble, coarse-grain marble, medium-grain marble, Castione marble, Berschis marble, Perlato Giallo, Collonges Rouge, Rosso Levanto, Auerbach marble, Macael marble, Lasa marble, Carrara marble
What it is Filled
A metamorphic rock formed by recrystallisation of limestone or dolomite under heat and pressure, composed mainly of calcite or dolomite crystals, in white and many veined colours; prized since antiquity for sculpture and building, quarried at Carrara and many other places, and in the stone trade the name is also applied to polishable limestones and other rocks that are not true marble.
Why it exists Filled
Let an agent identify marble and its varieties, explain its formation and properties, relay stone standards, quarrying and conservation information, and separate geological marble from trade marble and from other polished stones.
Distinguishing features Filled
- Metamorphosed carbonate rock
- Crystalline texture and polish
- Soft and acid-sensitive
- Trade name used loosely
What robots and AI may and may not do Filled
Must not
- Describe other stones as marble without saying they are not geologically marble.
- Recommend acidic cleaners on marble.
- Encourage removing marble from protected sites or monuments.
- Understate dust and safety hazards in quarrying and cutting.
Only with a human decision
- Any treatment, repair or removal of marble on heritage monuments.
May
- Explain what true marble is and how it forms.
- Distinguish true marble from polishable limestones sold as marble.
- Give care advice for marble surfaces against acids and staining.
Moral aspects Filled
- Marble monuments are shared heritage vulnerable to damage.
- Quarry and stone workers face real safety risks.
Who is affected
- Quarry and stone workers
- Owners of marble surfaces
- Heritage communities
Owners Filled
Steward
The quarry operator or owner of the stone; heritage authorities protect monuments.
Links to other meta-models Filled
parent
- Q47069 - registry parent class
- Q777913 - registry parent class
related
- metamorphic rock - from limestone
- carbonate rock - made of calcite or dolomite
- limestone - by metamorphism
- dimension stone - and in sculpture
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.marble
- Wikidata: Q40861 (https://www.wikidata.org/wiki/Q40861)
Direct properties required Filled
- density: about 2.6-2.8 g per cubic centimetre
- Mohs hardness: 3-4 scale - calcite
- compressive strength: about 60-150 MPa
Recognition required Filled
- Recrystallised carbonate rock with interlocking crystals
- Reacts with dilute acid
- Granite and quartzite do not react with acid; polished limestone is sold as marble but is sedimentary
- A crystalline rock, white or coloured with veins, taking a high polish, with sugary texture on fresh surfaces.
Capabilities and actions required Filled
- identify marble and its varieties
- explain formation and properties
- relay standards and conservation
- distinguish true marble from trade marble
Hazards and failure modes required Filled
- Etching and staining by acids
- Weathering and sugaring of outdoor marble
- Misnaming other stones as marble
- Silica-free but dusty quarrying hazards
Standards and interfaces required Filled
- EN 12670 and related natural stone standards
- ASTM C503 for marble dimension stone
- Quarrying and worker safety rules
- Heritage protection of quarries and monuments
Context of use required Filled
- Sculpture, building, decorative stone and industrial calcium carbonate.
- calcitic and dolomitic marble
- statuary white marbles such as Carrara and Pentelic
- coloured and veined marbles
- named commercial marbles by quarry
- trade marbles that are limestones or other rocks
- crushed marble and ground calcium carbonate
Sources Filled
- Wikidata item Q40861: marble - identity and sense of the item
- Wikipedia: Marble - general description of the item
Open questions
- Should commercial marble names be separate entries?
- How should stone standards be linked?
- The registry entry has merged aliases naming quarry stones and grain classes; should they be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q40861/spec.json