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.
Research draft, second pass
A second pass drafted this model: the structure a model of this thing needs, and what is known about it in the world. The line under this one says how the second half was obtained - researched against sources, or recalled without web access, in which case nothing here was read anywhere and every claim is a lead to verify. Unreviewed either way.
written by Claude from model knowledge without web access - no source was read, every claim is a lead to verify
Researched by: Claude
Purpose and description
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.
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, regional clays such as Devonshire ball clay, therapeutic peloids and the Maya zaccab; clay is the basis of ceramics, bricks and many industrial and cosmetic products.
What it is for: Ceramics, construction, industry and cosmetics.
It can be explain mineralogy and kinds; relay properties and uses; describe applications; distinguish related materials.
Distinguishing features
Fine grain
Plasticity
Hardens on firing
Many industrial uses
What it looks like
A fine, plastic earth, grey, red, white or brown.
Physical character
particle size: under 2 micrometres - by convention
main minerals: kaolinite, illite, montmorillonite list
firing temperature: about 900-1300 C - ceramics
How it is recognised
Fine plastic earth of clay minerals
Kaolin, fire clay, sepiolitic clay, Devonshire clay, peloid, zaccab
Silt is coarser; mud is wet mixed sediment; loam is a soil mix; clay minerals are the components
Related models
is a kind of - in registry terms
is a kind of - in registry terms
is composed of - such as kaolinite
is used in - and brick making
In practice
Families and kinds
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
Standards and regulation
Ceramic and refractory material standards
Cosmetic and pharmaceutical standards for clays
Mining and quarrying regulation
Failure modes and hazards
Silica dust in some clays
Confusing clay with silt or the mineral
Registry aliases naming regional and therapeutic clays
Also called
Where this came from
wikidata · CC0 1.0
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Understand What clay is.
Science.
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.
Science.
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.
Application.
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.
Context.
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
What the second pass must settle
- 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?