Double refraction is when you can see through a mineral and it shows two images instead of one.
Calite is the mineral that exhibits it.
I linked a great website for this kind of stuff below.
Double refraction is a property of the mineral calcite. When looking through the mineral at a single image, it appears that 2 images are seen.
A clear crystal of calcite, calcium carbonate (CaCO3), will transmit a double image.
Lustre Colour Cleavage Hardness Streak Crystal Habit Specific Gravity Magnetism Effervescence Double Refraction Taste Feel
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Galena.
Calcite exhibits cleavage in three directions.
use a raw camera to carefully break pieces off the mineral is this the type of chemical that makes up the mineral or the strength of the connection between particle in the mineral
A mineral that breaks into jagged pieces exhibits fracture.
Galena, pyrite, fluorite.
Refraction
Lustre Colour Cleavage Hardness Streak Crystal Habit Specific Gravity Magnetism Effervescence Double Refraction Taste Feel
Refraction
That is cleavage.
luster
it's 2x3
Use the definition of "index of refraction". In this case, you simply need to divide the speed of light in a vacuum by the index of refraction.
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Light exhibits refraction, diffraction, dispersion, and all the other properties of waves.
calcite