Mineral 1.0: Talc

Mineral 1.0

Test your knowledge of specific minerals

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



« Back to mineral listing

T
A
L
C

Click for expanded view

Mineral Picture courtesy of www.yuprocks.com

TalcMg₃Si₄O₁₀(OH)₂

Class: Silicate
Subclass: Phyllosilicate
Hardness: 1
Density: 2.6 - 2.8
Streak: White
Lustre: Greasy
Habit: Compact masses, often no crystals.
Colours: White, or brownish, dark green, gray
   Crystal System: Monoclinic
Cleavage: Perfect
Fracture: Uneven
Magnetism: None
Reaction with HCl: Unknown
Identification in hand sample:
Mineral is very soft and are often compact masses. Colour is typical and varies to brown, green or gray.



Inaccurate data? Better photos? .