Mineral 1.0Test your knowledge of specific minerals

M
E
N
U
« Home | Browse Minerals | QuizzesMinerals by letter: All | A | B | C | D | E | F | G | H | K | L | M | N | O | P | Q | S | T | W | Z
Minerals by class: Carbonates | Halides | Hydroxides | Native elements | Oxides | Phosphates | Silicates | Sulfates | Sulfides
Silicate Subclasses: Amphiboles | Cyclosilicates | Frameworks | Nesosilicates | Phyllosilicates | Pyroxenes | Sorosilicates
  

« Back to mineral listing

S
T
I
B
N
I
T
E

Click for expanded view




Stibnite on petrified wood (c) Mineral Picture courtesy of www.yuprocks.com
Stibnite on petrified wood
Mineral Picture courtesy of www.yuprocks.com

StibniteSb2S3

Class: Sulfide
Hardness: 2
Density: 4.6 - 4.7
Streak: Lead gray
Lustre: Metallic
Habit: Range from fine to medium grains to prismatic crystals (with longitudinal striations). Complex terminations, radiating acicular groups.
Colours: Lead gray, black, iridescent tarnish

  Crystal System: Orthorhombic
Cleavage: Perfect
Fracture: Subconchoidal
Magnetism: None
Reaction with HCl: Weak

Identification in hand sample:
Colour and small subhedral crystals are indicators. Also rather soft.

Associations:
Forms in low-temperature hydrothermal veins, or is deposited from hot mineral springs.

Industrial / ecomonic uses:
Important source of antimony (Sb)

  

Inaccurate data? Better photos? .