Mineral Jeopardy!

Mineral Jeopardy! What is a Mineral? Formation I D Mining & Uses BLT Chemistry

Minerals are always in which state of matter?

Solid.

What does organic mean? Are minerals organic?

Living. Minerals are INORGANIC.

Particles lined up in a repeating pattern form what?

Crystal Structure.

To be classified as a mineral, something must meet 5 requirements. What are they?

1.Naturally occurring 2.Inorganic 3.Solid 4.Crystal structure 5.Chemical composition

AND Explain why Coal could be a mineral AND why it is not.

Coal is NOT a mineral. It is a naturally occurring solid, but comes from plant matter, so it is ORGANIC.

2 Name 2 major ways minerals form.

1. By cooling of molten material. 2. Dissolved in water. 3. Evaporation.

What common mineral is found in dried lakes? What is its chemical formula?

Salt. Its chemical formula is Sodium Chloride - NaCl

Molten material is known by two names. What are they and why?

Magma & Lava. Magma is under ground, Lava is above.

Under what conditions do large crystals form? Small crystals?

High temperature, slow cooling. Low temperature, fast cooling.

What is a vein? How does it form?

Channel of minerals that is different from the surrounding rock. When solution crystallizes bellow the surface.

There are 7 primary ways to identify a mineral. List 4 of them.

1.Color 2.Streak 3.Luster 4.Hardness 5.Cleavage/Fracture 6.Crystal Structure 7.Density

The scale the rates the hardness of minerals is called what?

The Mohs hardness scale.

Give three special properties a mineral might have.

1.Fluorescence 2.Magnetic 3.Reacts to acid 4.Generates electricity 5.Radioactive

What is the softest mineral on the Mohs hardness scale? The hardest?

Talc = 1 Diamond = 10

Describe the differences between fracture & cleavage.

Fracture is when something breaks irregularly. Cleavage breaks along flat surfaces.

Minerals valued primarily for their beauty are called what?

Gemstones.

A mineral deposit that contains a metal or is economically useful is called what?

Ore.

TauTona and the coal mines of Pennsylvania are what kind of mine?

Shaft mine.

The gold rush of 1849 brought thousands to the West. What is this search for minerals called?

Prospecting.

Iron is an element. Why is steel different and what is this called?

Steel is an alloy – a solid mixture of two or more metals.

What is an atom? List the 3 subatomic particles.

An atom is the smallest unit of an element. The subatomic particles are Protons, Electrons, & Neutrons.

What is an element?

Substance composed of a single kind of atom.

What are the differences between a compound and a mixture?

Compounds are chemically combined whereas mixtures are not.

DENSITY Define DENSITY. What is the formula for density and its units?

Amount of matter in a given space. D = mass divided by volume Units are g/mL

How many neutrons does Potassium have?

Neutrons = Atomic Mass – Atomic # 39 – 19 = 20 Neutrons

A mineral with a mass of 52g was put into a graduated cylinder. What is its volume and density?

Volume = 15mL Density = 52g/15mL 3.46g/mL