I believe these are the "red needle-like crystals" with forming norstictic acid in KOH. #lichen #microchemistry I have not found reference images for this though maybe @aspenecology.com can share his thoughts on this? The lichen sample was K+ yellow slowly turning (brick)red.

Let me know if you are working with #otoliths or any archival structure and I will add you to the list! #FishSci #TeamFish #coral #fish #otolith #isotopes #microchemistry #sclerochronology #biochronologies #biomineral #shell #statolith #eyelens 🐟🦈🐙🐚🪸 go.bsky.app/2TPiypt

RE: https://bsky.brid.gy/convert/ap/at://did:plc:qxha5nf2oove5fwxjzxqbzw2/app.bsky.graph.starterpack/3law2tihbor2h