Macaulayite
Fe3+24Si4O43(OH)2IMA symbol: Mcyapproved
Macaulayite is a silicate mineral with the formula Fe3+24Si4O43(OH)2. Its streak is pink.
Photos

Physical properties
| Streak | pinksingle sourceWikidata (CC0) |
|---|
Classification
| Nickel-Strunz (10th) | 9.EC.65Wikidata (CC0) |
|---|---|
| Nickel-Strunz (9th) | 9.EC.65Wikidata (CC0) |