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Characteristic properties of minerals

Stability
Tarnish
Lightfastness
Oxidation
Sulfurization
Dehydration
Hydration
Phase transition
Combustibility
Pseudomorph:
Substitution pseudomorph
Paramorph
Incrustation pseudomorph
Chemical
Soluble:
Water
HCl
H2SO4
HNO3
HF
Aqua regia
KOH
NH3aq
NaHCO3
Other solvents
Insoluble:
Water
HCl
H2SO4
HNO3
HF
Aqua regia
Other solvents
Optical
Flame color
Radioactive
Fluorescence:
UV excited photoluminescence
Phosphorescence
Thermoluminescence
Triboluminescence
Cathode luminescence
Electro-Magnetic
Magnetic
Piezoelectric
Pyroelectric
Ferroelectric
Electrostatic
Others
Odor
Taste
Elastic
Float on the water