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Mineral Properties

List the five main characteristics of a mineral. A solid, naturally occurring, inorganic, crystalline structure, with a definite chemical composition.
A mineral that DOES split apart evenly has the property of cleavage
A mineral that DOES NOT split apart evenly has the property of fracture
What is an element pure minerals
What does inorganic mean? the mineral CANNOT come from materials that were once part of living things.
What is a crystal? particles in a mineral that line up in a pattern that repeats itself.
What is Moh's Hardness Scale a scale that rates minerals from 1 - 10 depending on the mineral's hardness.
What is the HARDEST known mineral according to Moh's Hardness Scale? diamond
What is the SOFTEST known mineral according to Moh's Hardness Scale? talc
Explain how you test for a mineral's streak? you observe streak by rubbing a mineral against a piece of unglazed tile called a streak plate
streak the color of a mineral's powder
luster how a mineral reflects light from its surface
cleavage when a mineral breaks/splits along flat surfaces
fracture when minerals break unevenly along rough or curved surfaces.
What is a mineral's luster? how a mineral reflects light from its surface.
What are four terms to describe a minerals luster? Earthy, waxy, pearly, glassy
Name five uses of minerals? ores, gemstones, food, drugs, and fertilizer.
Why are minerals always solids? it is always a solid because it has a definite volume and shape.
Can a mineral scratch a material softer than itself? yes, it can because a mineral can scratch minerals softer than itself.
Shiny minerals, such as galena, are said to have what? metallic luster
What is mining? when minerals are taken from the ground.
What is an ore? a rock that contains a metal or economically useful mineral
Why are ore's so important to our society? to make products, cars and machines.
What is a gemstone? a rare, colorful mineral with a brilliant luster.
Hardness a mineral's resistance to being scratched.
Explain how to test for a mineral's hardness. Use Moh's Hardness Scale. Use the numbers from 1-10 starting with the softest metal.
Created by: laflenj