precious opal
C5639
concept
Precious opal is a hydrated amorphous form of silica that exhibits a distinctive play-of-color caused by the diffraction of light through its internal array of microscopic silica spheres.
All labels observed (1)
| Label | Occurrences |
|---|---|
| precious opal canonical | 1 |
Description generation (CDg)
The one-sentence description above was generated by prompting gpt-5.1 with the class name and this instruction.
Instruction
generate a one-sentence description for a given conceptual class. # Response Format Return only the sentence: "Description: [one-sentence description of the conceptional class]"
Input
Class: precious opal
Generated description
Precious opal is a hydrated amorphous form of silica that exhibits a distinctive play-of-color caused by the diffraction of light through its internal array of microscopic silica spheres.
Instances (1)
| Instance | Via concept surface |
|---|---|
| Virgin Valley black fire opal | — |