MREE

English

MREE (plural MREEs)

(geology) Initialism of medium rare earth element.
- 2024, Martin Ondrejka, Peter Bačík, Juraj Majzlan, Pavel Uher, Štefan Ferenc, Tomáš Mikuš, Martin Števko, Mária Čaplovičová, Stanislava Milovská, Alexandra Molnárová, Christiane Rößler, Christian Matthes, “Xenotime-(Gd), a new Gd-dominant mineral of the xenotime group from the Zimná Voda REE–U–Au quartz vein, Prakovce, Western Carpathians, Slovakia”, in Mineralogical Magazine‎^[1], volume 88, number 5:
  Due to the lanthanide contraction phenomenon, the REE are further divided into larger LREE (light Ln, La–Sm), medium MREE (Sm–Dy) and smaller HREE (heavy Ln, Tb–Lu and Y).
- 2024 December 27 (last accessed), Eric Loewen, “Understanding Rare Earth Elements: Key Abbreviations”, in Stanford advanced materials‎^[2], Stanford Materials Corporation:
  MREE possess unique properties that make them valuable for specific applications, including their use in phosphors for displays and lighting and in lasers for precise cutting and medical imaging.