Minerals are always in which state of matter?
What does organic mean? Are minerals organic?
To be classified as a mineral, there are 5 requirements. What are they?
Naturally occurring Inorganic Solid Crystal structure Chemical composition
Coal is NOT a mineral. It is a naturally occurring solid, but comes from plant matter, so it is ORGANIC.
1. By cooling of molten material 2. Evaporationwhen dissolved in solution
What common mineral is found in dried lakes? What is its chemical formula?
Salt. Its chemical formula is Sodium Chloride - NaCl
Magma& Lava. Magmais under ground, Lavais above.
Under what conditions do large crystals form? Small crystals?
Large: High temperature, slow cooling. Small: 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 below the surface.
Color Streak Luster Hardness Cleavage/Fracture Crystal Structure Density
Fluorescence Magnetic Reacts to acid Generates electricity Radioactive
Talc = 1 Diamond = 10
Fractureis when something breaks irregularly. Cleavage breaks along flat surfaces.
A mineral deposit that contains a metal or is economically useful is called what?
The gold rush of 1849 brought thousands to the West.What is this search for minerals called?
Steel is an alloy – a solid mixture of two or more metals (iron and carbon).
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 are the differences between a compound and a mixture? Give an example of each.
Compounds are chemically combined whereas mixtures are not. Compound = H2O Mixture = Trail mix
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