About Fergusonite
A group of rare earth element (REE) niobate-tantalate minerals, often metamict (radioactive). It's associated with focus, determination, and grounding REE energies.
Primary Hues
Brown, Yellowish-Brown, Dark Brown, Black, often metamict (radioactive)
Geological & Scientific Details
Fergusonite is classified as a oxide minerals mineral which typically crystallizes in the tetragonal system. Its chemical formula is REENbO4 (REE: rare-earth element). Common crystal habits include metamict – mineral originally crystalline, now amorphous due to radiation damage.
Key Geological Properties:
- Mineral Category: Oxide minerals
- Chemical Formula: REENbO4 (REE: rare-earth element)
- IMA Symbol: Fgs[1]
- Crystal System: Tetragonal
- Formula Mass (g/mol): 245.81 g/mol (Y)
- Predominant Geological Color: Black, black, brown, gray, yellow
- Crystal Habit: Metamict – mineral originally crystalline, now amorphous due to radiation damage
- Cleavage: Indistinct
- Luster: Submetallic
- Streak: Brown
Associated Minerals
- Monazite
- Xenotime
- Euxenite
- Samarskite
- Columbite-Tantalite (common in REE-rich granite pegmatites)