| Label | Id | |
|---|---|---|
| BSi | http://purl.obolibrary.org/obo/CHEBI_64389 | |
| opal | http://purl.obolibrary.org/obo/CHEBI_64389 | |
| biogenic opal | http://purl.obolibrary.org/obo/CHEBI_64389 | |
| biogenic silica | http://purl.obolibrary.org/obo/CHEBI_64389 | |
| amorphous opaline silica | http://purl.obolibrary.org/obo/CHEBI_64389 |
