MINERALS ARE ALL AROUND US
what is true of a diamond found in austrailia and one found in india?
both have the same chemical makeup
what mineral is common in seashells?
calcite
what can be concluded if mineral glows are exposed to ultraviolet light?
is a fluorescent mineral
If a mineral does NOT break along a flat surface, what type of break is it?
Fracture
500 points
500
explain why ice is known as a mineral.
because of its atom arrangement
a meta is joined with oxygen to create?
an oxide
pyrite vs gold?
they have different densities
500 points
500
What causes two minerals of the same composition to have different crystal structures?
A) Temperature
B) Location of growth
C) Arrangment of atoms
D) Mr Phillip says so
C) Arrangment of atoms
what is similar in diamond and graphite?
both of them are made of carbon
why are perfect crystals known to be rare ?
they need open space to grow, which they don't have in earths crust
what type of break involves in a mineral breaking along a flat surface?
cleavage
Which mineral forms as a result of water evaporating from a hot, shallow part of the ocean?
Halite
List the four characteristics of a mineral
1) Forms in nature
2) Is a solid
3) Has a definite chemical makeup
4) Has a crystal structure
1. forms in nature
2. has a definite chemical makeup
3. has a crystal structure
explain how minerals are classified into groups.
by composition
explain how two minerals of different colors can be identified the same mineral.
by comparing their streak
list a fact about the mohs scale.
a harder mineral will scratch a softer one
What is usually joined with oxygen to form an oxide?
a metal
an element found in silicates, carbonates and oxides?
oxygen
what can be considered the most common rock-forming mineral group in earths crust?
silicates
what three factors can affect a minerals color?
1. mineral has bits of an element, not part of its normal chemical makeup
2. mineral has defects in its crystal structure
3. mineral is in contact with the atmosphere or water hear earths surface
explain what property would be least reliable for determining a minerals identity.
color
How are carbonate minerals different from other mineral groups?
A) They are shiny
B) They are denser
C) They react with acid
D) They are radioactive
C) They react with acid