Mineralpedia Details for Millerite
Millerite
- Formula
- NiS
- Crystal System
- Trigonal
- Crystal Habit
- Acicular, Massive
- Cleavage
- Perfect, Perfect, None
- Luster
- Metallic
- Color
- bronze, greenish gray, gray, brass yellow
- Streak
- greenish black
- Class
- Trigonal - Hexagonal Scalenohedral
- Fracture
- Uneven
- Hardness
- 3-3.5
- WebMineral
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- Mindat
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Millerite from Palabora mine, Phalaborwa, Limpopo, South Africa
Brassy metallic Millerite in a radial pattern embedded in course Calcite matrix with a green crust of a secondary Copper mineral (Cu-Carbonate).
Millerite from Universal Colliery, Senghenydd, Caerphilly, Wales
13mm long golden Millerite crystals in divergent spray.
Millerite from Gap mine, Lancaster Co., Pennsylvania, United States
I believe this is a good specimen of Millerite for this locality. There are a number of Millerite groups and the largest in the center is 1cm.
Millerite from Flat River, St. Francois Co., Missouri, United States
Filliform Millerite crystals to 8mm with some longer crystals on dolomite.
Millerite from Sudbury dist., Ontario, Canada
Brassy, gold platy Millerite, an uncommon habit for this mineral. The two overall photos represent the color the best.
Millerite from Halls Gap, Lincoln Co., Kentucky, United States
Fine brassy capillary crystals of Millerite to 3mm in partial geode.
Millerite from Cessford quarry, Biggsville, Henderson Co., Illinois, United States
Excellent long, silky golden, filliform Millerite with crystals as long as 2cm.
Millerite from Temagami mine, Nipissing dist., Ontario, Canada
- Special Info
- Antique Specimen
Excellent specimen with golden plates of Millerite to 3.5cm and associated with massive golden Gersdorfite, another nickel-sulfide. Old Ward's specimen with label deaccessioned from the A.E. Seaman Museum.
