About Niobite
Part of the Columbite-Tantalite series (niobium-dominant endmembers are Columbite). These are black, dense minerals used as ores of niobium and tantalum. They are grounding stones promoting focus and determination.
Primary Hues
Black, Brownish-Black, Iron-Black, often iridescent
Geological & Scientific Details
Niobite is classified as a oxide minerals mineral which typically crystallizes in the orthorhombic system. Its chemical formula is (FeII,MnII)Nb2O6. Common crystal habits include massive – granular – common texture observed in granite and other igneous rock; striated - parallel lines on crystal surface or cleavage face..
Key Geological Properties:
- Mineral Category: Oxide minerals
- Chemical Formula: (FeII,MnII)Nb2O6
- IMA Symbol: Clb[1]
- Crystal System: Orthorhombic
- Predominant Geological Color: Black, brownish black.
- Crystal Habit: Massive – Granular – Common texture observed in granite and other igneous rock; Striated - Parallel lines on crystal surface or cleavage face.
- Cleavage: [010] Distinct
- Luster: Sub-metallic
- Streak: Blackish brown
Associated Minerals
- Columbite-Tantalite Series (Tantalite, Manganocolumbite, Manganotantalite, Ferrocolumbite, Ferrotantalite)
- Albite
- Lepidolite
- Tourmaline
- Beryl
- Microlite
- Cassiterite (common in granite pegmatites)