This is a picture of the rock that surrounds the active mining site and if found

Question

This is a picture of the rock that surrounds the active mining site and if found in the mine is considered waste rock. It is crystalline with visible individual crystals. The ruler in the picture is showing centimeters.

Mineral A: Black, shiny, and breaks into sheets

Mineral B: Pink in color, relative hard, not easily scratched with the thumbnail. Glassy luster

1 .Mineral A described in the rock is

2.Mineral B described in the rock is

3.Mineral C described in the rock is

4.What is the rock type of this sample?

sedimentary rock

igneous rock

c)metamorphic rock

5. The crystalline texture of this rock is called

6. Based on the texture of the rock, what can you determine was the rate that the mineral crystals formed (aka the crystallization rate; Slow crystallization, fast crystallization, two rates of crystallization, first slow then fast)? Explain your reasoning on 1-2 sentences.

sedimentary rock

igneous rock

c)metamorphic rock

5. The crystalline texture of this rock is called

6. Based on the texture of the rock, what can you determine was the rate that the mineral crystals formed (aka the crystallization rate; Slow crystallization, fast crystallization, two rates of crystallization, first slow then fast)? Explain your reasoning on 1-2 sentences.

Explanation / Answer

1. Mineral A desribed it is Mica Biotite

2. Mineral B described it is Quarts

3. Mineral C described it is Calcite

4. Sample is granite- igneous rock

5. These are big, coarse-grained structure with granular in texture.

6. These are intrusive rocks with coarse-grained texture and crystallise slowly from magma deep in the earth's crust. The texture of an igneous rock, fine or coarse-grained depends on the rate of cooling of the melted magma. slow cooling creates large crystals and fast cooling creates small crystals.

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