MINERALS

Is mineral water considered as mineral?

• TSISMIS

• TSIGURADO

WHAT do you think of when you hear the word minerals?

Minerals are naturally occurring, _________ , solid with an orderly crystalline structure and a definite chemical composition.

Why is it the streak color (powdered form of mineral) of mineral is sometimes DIFFERENT from the minerals actual color?

• Presence of Iron change the actual color of the mineral

• The surface of minerals was expose to air or moisture.

• Surface of minerals undergo weathering and chemical reaction

• The minerals are fake.

Identify the luster of the mineral.

• Metallic Luster

• Nonmetallic Luster

A mineral breaks along smooth, flat surfaces. This is known as:

• Cleavage

• Fracture

• Luster

• Streak

What is the most reliable physical property for identifying a mineral?

• Color

• Size

• Streak

• Shape

What does it mean if a mineral has a white streak but appears pink or purple on the outside?

• It’s not a real mineral.

• It’s radioactive.

• The surface color is caused by impurities.

• It’s a man-made crystal.

While testing minerals, a student finds one that cannot be scratched by a steel nail but can scratch glass. What can be inferred about this mineral’s hardness on the Mohs scale?

• Less than 5

• Between 1 and 2

• Around 7

• Between 6 and 7

A student observes that a mineral breaks into uneven, jagged pieces instead of smooth, flat surfaces. Which physical property is the student observing?

• Luster

• Cleavage

• Streak

• Fracture