clay
Let an agent explain clay and its mineralogy, relay kinds, properties and uses from geological and materials sources, describe ceramic and industrial applications, and distinguish clay from silt, mud, loam and the clay minerals themselves.
Bundle → Layer → Finding → Questions Filled
4 bundles · 8 layers · 8 findings · 16 questions
Understand What clay is.
Definition
Definition.
Definition
Definition.
- What is clay, and how does it differ from silt, mud, loam and clay minerals? definition
- Is the question about geology, ceramics, industry or a specific clay? boundary
Kinds
Kinds.
Kinds
Kinds.
- What are kaolin, fire clay, sepiolitic clay, Devonshire clay, peloids and zaccab? definition
- Which entry fits the specific clay? action
Science Mineralogy and properties.
Minerals
Clay minerals.
Minerals
Minerals.
- How do kaolinite, illite and montmorillonite differ, and how do they form? provenance
- Which references are standard? provenance
Properties
Properties.
Properties
Properties.
- Why is clay plastic, and what happens when it is fired? provenance
- Which sources are cited? provenance
Use Uses.
Ceramics
Ceramics and building.
Ceramics
Ceramics.
- How is clay used in pottery, porcelain, bricks and refractories? provenance
- Which entry fits pottery? action
Industry
Industry and health.
Industry
Industry.
- How is clay used in paper, drilling, cosmetics and therapeutic peloids, with health claims attributed? provenance
- Which entry fits the specific application? action
Context History and culture.
History
History.
History
History.
- How has clay been used from prehistoric pottery and Maya zaccab to modern industry? provenance
- Which entry fits the history of ceramics? action
Culture
Culture.
Culture
Culture.
- How does clay figure in art, myth and building traditions? provenance
- Which entry fits clay in art? action
Classifiers Filled
- Family
- Thing Registry
- Category
- Physical world and living systems
- Entry kind
- thing
- Plane
- PHY
- Domain
- PHY.MAT
- Other names and narrower kinds
- sepiolitic clay, kaolin, peloid, Devonshire clay, zaccab, fire clay, white pipe clay, London clay, diluvial clay, casting clay, terralite, bridged clay
What it is Filled
A fine-grained natural earth material composed mainly of clay minerals such as kaolinite, illite and montmorillonite, plastic when wet and hard when fired, including kaolin or china clay, fire clay for refractories, sepiolitic clays and regional clays such as Devonshire ball clay; therapeutic peloids are mixtures that may contain clay, while Maya zaccab is a calcareous limestone material rather than a type of clay; clay is the basis of ceramics, bricks and many industrial and cosmetic products.
Why it exists Filled
Let an agent explain clay and its mineralogy, relay kinds, properties and uses from geological and materials sources, describe ceramic and industrial applications, and distinguish clay from silt, mud, loam and the clay minerals themselves.
Distinguishing features Filled
- Fine grain
- Plasticity
- Hardens on firing
- Many industrial uses
What robots and AI may and may not do Filled
Must not
- Encourage dry sanding or sweeping of clay in a way that raises silica dust.
- Present therapeutic clays as cures without medical evidence.
- Advise eating clay without warning of contamination and health risks.
- Dig clay from land without the owner's permission or required permits.
Only with a human decision
- Opening or extending a clay pit or quarry.
May
- Describe clay types such as kaolin, ball clay and fire clay and their uses.
- Advise in general terms on safe handling of clay dust in studios and works.
Moral aspects Filled
- Fine silica dust from some clays harms the lungs of workers.
- Clay extraction can damage landscapes and water.
Who is affected
- Potters and workers
- Neighbours of pits
- Consumers of clay products
Owners Filled
Steward
The landowner or the holder of the extraction permit.
Master systems
- Mineral rights and quarry permit registers
Links to other meta-models Filled
parent
- Q21685333 - registry parent class
- Q34669510 - registry parent class
related
- sculpture material - in registry terms
- malleable material - in registry terms
- clay mineral - such as kaolinite
- ceramics - and brick making
What else AI and robots need to interact with it Filled
Identity and identifiers required Filled
- Vercy registry: vr.tr.clay
- Wikidata: Q42302 (https://www.wikidata.org/wiki/Q42302)
Direct properties required Filled
- particle size: under 2 micrometres - by convention
- main minerals: kaolinite, illite, montmorillonite list
- firing temperature: about 900-1300 C - ceramics
Recognition required Filled
- Clay is a fine plastic earth material composed mainly of clay minerals.
- Clay types include kaolin, fire clay, sepiolitic clay and Devonshire ball clay.
- Peloids are mixtures that may contain clay, while zaccab is a calcareous limestone material rather than clay.
- Silt is coarser, mud is wet mixed sediment, loam is a soil mix, and clay minerals are the components.
- A fine, plastic earth, grey, red, white or brown.
Capabilities and actions required Filled
- explain mineralogy and kinds
- relay properties and uses
- describe applications
- distinguish related materials
Hazards and failure modes required Filled
- Silica dust in some clays
- Confusing clay with silt or the mineral
- Registry aliases naming regional and therapeutic clays
Standards and interfaces required Filled
- Ceramic and refractory material standards
- Cosmetic and pharmaceutical standards for clays
- Mining and quarrying regulation
Context of use required Filled
- Ceramics, construction, industry and cosmetics.
- kaolin and china clay
- ball clays such as Devonshire clay
- fire clays and refractory clays
- bentonite and sepiolitic clays
- therapeutic peloids and cosmetic clays
- regional and historical clays such as zaccab
Sources Filled
- Wikidata item Q42302: clay - identity and sense of the item
- Wikipedia: Clay - general description of the item
Open questions
- Should kaolin, fire clay and peloid be separate primary entries?
- How should geological sources be linked?
- The registry entry has merged aliases naming specific clays and a Maya material; should they be split off?
Machine files
Provenance
thing registry research (pass 2) · unreviewed
Built from: models/things/publications/thing-q42302/spec.json