16 terms

Room 27 Mogadore Minerals

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classification key
a method used to group and categorize items
cleavage
a mineral's ability to split along flat surfaces
color
the property of a mineral that is most easily recognized
crystals
in most solids, the arrangements of particles in repeating geometric patterns
element
a pure substance made of only one kind of atom
gemstone
a hard, colorful mineral that has a brilliant or glassy luster
geology
study of materials that make up Earth and the processes that form and change these materials
hardness
a measure of the ability of a mineral to resist scratching
Moh's hardness scale
a scale from softest to hardest; used in testing the hardness of minerals
streak
the color of a mineral in powdered form
rock
a naturally occurring solid that is usually a mixture of minerals
mineral
natural, nonliving solid material found in or on Earth; building blocks of rocks
luster
how light reflects off a mineral
acid test
a test that helps identify minerals containing calcium carbonate
property
character, characteristic, quality, feature
fossil
A preserved remnant or impression of an organism that lived in the past.