red spinel
C22306
concept
A red spinel is a hard, transparent to translucent magnesium aluminum oxide gemstone that exhibits vivid red hues often mistaken for ruby, commonly found in metamorphic and alluvial deposits.
All labels observed (2)
| Label | Occurrences |
|---|---|
| variety of corundum | 2 |
| red spinel 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: red spinel
Generated description
A red spinel is a hard, transparent to translucent magnesium aluminum oxide gemstone that exhibits vivid red hues often mistaken for ruby, commonly found in metamorphic and alluvial deposits.
Instances (3)
| Instance | Via concept surface |
|---|---|
| Black Prince's Ruby | — |
| Sapphire | variety of corundum |
| Ruby (gemstone) | variety of corundum |