About Millerite
A nickel sulfide, known for its brass-yellow color and distinctive delicate, hair-like (acicular) crystal formations. It's associated with promoting joy, self-worth, and appreciating life's subtleties.
Primary Hues
Brass-Yellow, Bronze-Yellow, often forms delicate acicular (hair-like) crystals
Geological & Scientific Details
Millerite is classified as a sulfide mineral mineral which typically crystallizes in the trigonal system. Its chemical formula is NiS. Common crystal habits include typically acicular (needle-like) often in radial sprays – also massive.
Key Geological Properties:
- Mineral Category: Sulfide mineral
- Chemical Formula: NiS
- IMA Symbol: Mlr[1]
- Crystal System: Trigonal
- Crystal Habit: Typically acicular (needle-like) often in radial sprays – also massive
- Cleavage: Perfect on {1011} and {0112} – obscured by typical form
- Luster: Metallic
- Streak: Greenish black
- Diaphaneity: Opaque