Occurrence of Attributes in Original Text
The text related to the cultural heritage 'City of Quito' has mentioned 'Obsidian' in the following places:
| Occurrence Sentence | Text Source |
|---|---|
| Hunter-gatherers left tools of obsidian glass, dated to 8000 BC. | WIKI |
| The Cotocollao people extracted and exported obsidian to the coastal region. | WIKI |