https://collectionsphysique.univ-lyon1.fr/calcite-concretions/
Calcite (Concretions) - Collections du département Physique
Sep 10, 2024 - Collections du département de physique de l'université Lyon 1 - Explorer nos trésors minéralogiques et instruments historiques
calciteconcretionscollectionsphysique
https://hccbuddy.com/icd10/H11.12
2027 ICD-10-CM H11.12: Conjunctival concretions | HCC Buddy
ICD-10-CM H11.12: Conjunctival concretions. FY2027 nonbillable heading. Choose a billable child code before checking HCC mapping.
icdconjunctivalconcretionshccbuddy
https://doi.pangaea.de/10.1594/PANGAEA.859014
Kurbatov, LM (1936): Manganese concretions from Kara Sea and Karelia
Kurbatov, L M (1936): Manganese concretions from Kara Sea and Karelia [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.859014, Supplement...
from karakurbatovmanganeseconcretionssea
https://www.ontariobeneathourfeet.com/geochemistry-bog-iron
geological concretions, Red Rock Coulee, Alberta, Canada — Canada (Ontario) Beneath Our Feet
This page, by Andy Fyon, describes the formation of bog iron, with examples from L’Anse aux Meadows (Newfoundland and Labrador) and Yukon.
red rock couleealberta canadageologicalconcretionsontario