Obsidian
Naturally occurring dense volcanic glass, usually rhyolitic and typically but not necessarily black.
How it connects
Obsidian is a kind of Mineral.
Other kinds of Mineral: Aluminium hydroxide, Barium sulfate, Calcium carbonate, Carbon black, Cementitious, Ceramic, Clay, Feldspar, Filler, Flame retardant additive, Glass, Gypsum, Jade, Mica, Mineral oxide, Mineral wool, Pigment, Plaster, Plasterboard, Sand, Silica, Silicon, Stone, Talc and Zinc sulfide.
In other taxonomies
- obsidianGetty AAT, 300011254nearly the same
- obsidianWikidata, Q53754nearly the same
- Uniclassno equivalent
For developersRecord, identifiers and graph
Where it sits
One rule per term beside it, taller for each narrower term
Top of the axis
- Mineral26
Obsidian
26 terms, Ceramic to Aluminium hydroxide
The word “obsidian”
2 meanings
- ObsidianMaterial, this termNo default
- obsidianColorScope named colorNo default
Record
- Broader
- Mineral
- Provenance
- referencedhttps://www.usgs.gov/glossary/volcano-hazards-program-glossary, read 30 Aug 2026
For machines
Permanent address
/id/material/obsidianKnowledge graph
Stored incoming and outgoing relations from the public V1 graph. Ancestors, descendants, and siblings are labelled as derived views rather than stored facts.
- has-conceptMaterialincoming
- has-conceptMaterialincoming
- narrowerMineralincoming
- belongs-to-axisMaterialoutgoing
- belongs-to-facetMaterialoutgoing
- broaderMineraloutgoing
Derived hierarchy views
- ancestor (derived)Mineraloutgoing
- sibling (derived)Aluminium hydroxideoutgoing
- sibling (derived)Barium sulfateoutgoing
- sibling (derived)Calcium carbonateoutgoing
- sibling (derived)Carbon blackoutgoing
- sibling (derived)Cementitiousoutgoing
- sibling (derived)Ceramicoutgoing
- sibling (derived)Clayoutgoing
- sibling (derived)Feldsparoutgoing
- sibling (derived)Filleroutgoing
- sibling (derived)Flame retardant additiveoutgoing
- sibling (derived)Glassoutgoing
- sibling (derived)Gypsumoutgoing
- sibling (derived)Jadeoutgoing
- sibling (derived)Micaoutgoing
- sibling (derived)Mineral oxideoutgoing
- sibling (derived)Mineral wooloutgoing
- sibling (derived)Pigmentoutgoing
- sibling (derived)Plasteroutgoing
- sibling (derived)Plasterboardoutgoing
- sibling (derived)Sandoutgoing
- sibling (derived)Silicaoutgoing
- sibling (derived)Siliconoutgoing
- sibling (derived)Stoneoutgoing
- sibling (derived)Talcoutgoing
- sibling (derived)Zinc sulfideoutgoing
Crosswalks
| Scheme | Identifier | Their label, or the search | How close |
|---|---|---|---|
| Getty AAT | 300011254 | obsidian | nearly the same |
| Wikidata | Q53754 | obsidian | nearly the same |
| Uniclass | no equivalent | searched 21 Oct 2026Obsidian via https://uniclass.thenbs.com/search?query=Obsidian&filter=status%3ACurrent | none |