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Biblioteka

Minerals-Cotner

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Posljednje ažuriranje 4 months ago
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Pitanje 1
1.

Mohs scale measure which property of minerals?

Pitanje 2
2.

All of the following words describe a mineral's luster except which one?

Pitanje 3
3.

A mineral's streak is

Pitanje 4
4.

Cleavage and fracture describe

Pitanje 5
5.

Which of the following is a chemical property of minerals?

Pitanje 6
6.

Read the description below. Use the definition of minerals to choose the correct statement about Portland cement.

Portland cement is the most common type of cement used in the world. It is made of limestone and other materials. It was first developed in 1756 by John Smeaton. Portland Cement is made through a process of heating and grinding. It sets and hardens when mixed with water.

Pitanje 7
7.

Read the description below. Use the definition of minerals to choose the correct statement about sandstone.

Sandstone contains quartz and feldspar. It is often tan, brown, yellow and/or red. It may have a hardness of about 6.5. Sandstone cannot be described by a chemical formula because standstone is not a pure substance.

Pitanje 8
8.

Identify the physical property being described below:

Sulfur is bright yellow

Pitanje 9
9.

Identify the physical property below:

Beryl is a 7.5 to 8 on Mohs scale

Pitanje 10
10.

Identify the property below:

Talc reflects light like a pearl does

Pitanje 11
11.

Identify the property below:

When magnetite splits, it forms only uneven surfaces

Pitanje 12
12.

Identify the property below:

Dolomite's powder is white