Minerals & formation

is a naturally occurring solid that can form by inorganic processes and has a crystal structure and definite chemical composition.

• A mineral

• A rock

• A gas

Gypsum forms naturally from chemical elements that precipitate from water.

• true

• false

A mineral is always a solid, which means it has a

• definite volume and shape.

• indefinite volume and shape.

The repeating pattern of a mineral's particles forms a solid called a

(a)  

- (a)   always contains calcium, oxygen, sulfur, and hydrogen, in set proportions.

-Some minerals, such as (a)   , form from both inorganic and organic processes.

a property that describes how light is reflected on the surface of a mineral.

(a)  

is a measure of the resistance of a material to surface indentation or abrasion

(a)  

He rubs a mineral on a piece of white tile and observes the color of the powder that is left behind. What type of test did he?

• streak

• hardness

• luster

Minerals form from the materials dissolved in evaporating solutions of water.

• Feldspar

• Quartz

• Olivine

• Halite