rock
Let an agent handle rocks by type, composition, origin, properties and uses, and respect sacred stones and protected sites.
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 handle rocks by type, composition, origin, properties and uses, and respect sacred stones and protected sites.
A naturally occurring solid aggregate of one or more minerals or mineraloids, classified as igneous, sedimentary or metamorphic, forming the Earth crust.
What it is for: Rocks record Earth history and provide building stone, aggregates and resources.
It can be identify and classify it; quarry and use it; date it; protect geological sites.
Distinguishing features
Aggregate of minerals
Three main classes by origin
Properties vary widely
Some stones are sacred, such as sieidi
What it looks like
Solid masses with grains, crystals, layers or glassy textures; colours vary.
Physical character
density: 2.2-3.3 g/cm3 - common rocks
compressive strength: 20-300 MPa - varies widely
How it is recognised
Texture, grain size and minerals
Layering in sedimentary rocks
Local stones such as cantera or gritstone
Related models
is made of - components
forms - structures
is used as - use
is studied by - science
In practice
Families and kinds
igneous rocks
sedimentary rocks
metamorphic rocks
building stones
sacred stones
Identifiers
rock name IUGS classification names
Standards and regulation
IUGS rock classification
EN 12440 natural stone denomination
Geoheritage protection
Failure modes and hazards
Rockfall
Silica dust from cutting
Radon from some rocks
Also called
+355
Where this came from
wikidata · CC0 1.0
Also registered as vr.tr.rock-act
Drafted structure
Bundle to layer to finding to question, as the second pass will find it: 4 bundles · 8 layers · 8 findings · 16 questions.
Classification Which rock.
Classification by origin.
Type
Igneous, sedimentary, metamorphic.
Type
Rock type.
- What type of rock is it? definition
- How was it identified? provenance
Composition
Minerals.
Composition
Mineral composition.
- Which minerals does it contain? measurement
- What texture does it have? definition
Origin How it formed.
Origin explains properties.
Formation
Process.
Formation
Formation.
- How did it form? definition
- In what environment? definition
Age
Dating.
Age
Age.
- How old is it, by which method? measurement
- How precise? measurement
Use Building and resources.
Rocks are used widely.
Building
Stone and aggregate.
Building
Building use.
- Is it suitable as building stone? boundary
- What are its strength and durability? measurement
Quarrying
Extraction.
Quarrying
Extraction rules.
- Which permits govern quarrying? provenance
- What are the impacts? boundary
Safety and heritage Hazards and protection.
Rocks carry hazards and meaning.
Hazards
Dust, radon, rockfall.
Hazards
Hazards.
- Does working it produce silica dust or radon? boundary
- What protection is needed? action
Heritage
Protected and sacred.
Heritage
Protection.
- Is it a protected geological or sacred site? boundary
- Is collecting allowed? boundary
What the second pass must settle
- Should rock types be separate entries?
- How should building stones be linked?
- How should sacred stones be respected?