3.1
Are about the size of protons but have no charge.
What are Neutrons?
The way light reflects off the mineral’s surface.
What is Luster?
Mohs Hardness Scale, is used to measure what mineral property.
What is Hardness?
Can form from volcanic gases, sediment formation, oxidation, crystallization from magma, or deposition from a saline fluid, and many other ways
What are Minerals?
Valuable minerals found in stream gravels.
What are Placers?
A substance that cannot be made into a simpler form by ordinary chemical means.
What is an Element?
Nearly all (98.5%) of Earth’s crust is made up of how many elements?
What is 8?
A measure of the amount of matter in an object.
What is Mass?
Magma cools faster when it beomes this
What is Lava?
Used to recover ores that are deeper into Earth’s surface.
What is Underground Mining?
Electrons orbit the nucleus at varying energy levels in a region known as this
What is an Electron Cloud?
The basic building block shape of silicate and phosphate minerals
What is a tetrahedron?
A mineral that splits into even, flat sheets shows which of the property?
What is Cleavage?
When the amount of dissolved substances is too great to stay dissolved in the water, the particles come together to form mineral solids called what
What are Precipitates?
A material that is cut and polished for jewelry
What is a Gem or Gemstone?
When an atom loses an electron it becomes this
What is a positive ion? (accept "positively charged" or "an ion")
Are the carbon-based compounds made by living creatures
What are Organic Substances?
When a mineral is rubbed across an unglazed porcelain plate. What mineral property is being tested?
What is Streak?
A nearby example given of a place that contains many mineral precipitates.
What is the Great Salt Lake?
The mineral used in sheetrock in our homes
What is Gypsum?
The outer level of electrons of an atom is called this
What is the "Valence Shell" or "Valence Level"?
Minerals are categorized based on their what.
What is Chemical Composition?
The mineral property that can be measured with Geiger counter.
What is Radioactivity?
A rock that forms from slowly cooled magma, containing the minerals quartz (clear), plagioclase feldspar (shiny white), potassium feldspar (pink), and biotite (black)
What is Granite?
The Mineral ore we get Aluminum from
What is Bauxite?