Minerals
a naturally occurring, inorganic solid with a definite structure and chemical composition
Mineral
This is the softest mineral and can be scratched with your fingernail.
Talc
Bauxite is an ore mined for what purpose?
Aluminum soft-drink cans
The way a mineral breaks along smooth, flat surfaces, it is called this.
Cleavage
Two reasons titanium is useful in sporting equipment.
Durable and lightweight
Each tiny grain of salt has a crystal structure/system called what?
Cubic
Scientists use this scale to rate a mineral's hardness
Mohs scale of hardness
Minerals that are highly prized for their beauty and rarity
Gems
The largest group of minerals containing oxygen and silicon
Silicates
Titanium is used for biomedical purposes in bone and hip joint replacement parts. Why?
Titanium is a metal derived minerals, is nontoxic to humans, and is very strong.
One way crystals can form is from cooling magma. Another way crystals form is from what process?
Liquid evaporates and the atoms from the minerals stay behind and form crystals.
Where is the mineral graphite used?
Lead for pencils
This mineral is the hardest of all minerals.
Diamonds
If a mineral is mined because it contains a useful substance, it is called this.
An ore
Substances that give color to paint are called this.
Pigments
Almost 75% of the Earth's crust is made of these minerals.
Silicates
How can you determine the difference between real gold and Pyrite, also known as "Fools Gold"?
Streak colors are different. Gold is yellow, and pyrite's streak color is greenish-black or brown-black.
Uses for diamonds include _____________
Drill tips, scalpels for surgery, dental drills, computer parts, and razor blades.
When a mineral breaks with rough or jagged edges it is called this.
Fracture
White pigments are made from compounds containing these minerals.
Calcium, zinc, titanium, or lead
The real name for the mineral used to melt ice on streets and highways, commonly referred to as rock salt, is this.
Halite
These are terms for nonmetallic luster
Dull, pearly, and silky
Iron used in frying pans and ships comes from the ore, hematite. The ore, Chalcopyrite, is mined for the purpose of extracting _______.
Copper for pennies and copper wire.
This gem is the gem form of quartz and gets its color from traces of manganese in its structure
Amethyst
A rich, dark blue color, known as ultramarine, is made from this mineral.
Lapis lazuli