Question

Determine whether the material is a rock or mineral based on the description.

Answer 1

Answer: It often has a mottled apperance due to its heterogeneous composition - ROCK

Atoms in all specimens have the same structure and shape - MINERAL

It is generally found in crystalline form - MINERAL

Every specimen varies in terms of atomic structure - ROCK

Step-by-step explanation:

I just took the test and got it right. :) Hope this helps!

Answer 2

Part 1.

Description:

It often has molten appearance due to its heterogeneous composition.

Rock or mineral:

It is a rock.

Mineral has a unique specific makeup and always has the same composition.

So it is rock due to heterogeneous composition.

Part 2.

Description:

Atoms in all specimens have the same structure and shape.

Rock or mineral:

It is Mineral.

Mineral has a unique specific makeup and always has the same composition.

Part 3.

Description:

It is generally found in crystalline form.

Rock or mineral:

It is a mineral.

Part 4.

Description:

Every specimen varies in terms of atomic structure.

Rock or mineral:

It is a rock.

A rock is a solid, inorganic, naturally-formed substance without a particular atomic structure or chemical composition.