You use a flashlight to observe a mineral. What can you conclude if the mineral is waxy and dull? (2 points)

a
The mineral is metallic.

b
The mineral is non-metallic.

c
The mineral has cleavage.

d
The mineral does not have cleavage.

Respuesta :

b!!
if the mineral is dull, it is not a metalic. for example, silica is a waxy and dull mineral.

The waxy and dull appearance of the mineral means that it is a non-metal.

Non metals are elements which are very poor conductors of heat and

electricity.

Metals on the other hand are elements which are good conductors of heat

and electricity. The shiny appearance is caused by photons being

reflected into the eye. An example is Copper,  Sodium etc.

Non metals are element involves no reflection of photons into the eye

which is why a mineral which is waxy and dull is a non metal. An example is

sulphur, carbon etc.

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