26 Flashcards
what is a mineral
is a naturally occurring inorganic solid with a crystalline form
What is a streak?
its the color of a mineral in powdered form
what are the two most abundant elements that make up earths crust
silicon and oxygen
what does inorganic mean
materials that are non living
what does the arrangement of an atom and the bonds between them reflect about a mineral
how a minerals breaks, how hard the mineral is, and its crystal shape
what are all the ways to identify minerals
Luster, streak, hardness, cleavage, fracture, shape, atomic arragment,
what are the two types of luster
metallic and non metallic
how does metallic luster reflect light
it reflects very easily
how does non metalic reflect light
not as easly and has a dull earthy reaflection
how do you perform a streak test
by rubbing a mineral on an unglazed porcelain tile
what are the two types of breakage that can happen to minerals
cleavage and fracture
what is the name of the scale to measure the hardness of a mineral
mohs scale of hardness
what is the number rage on mohs scale of hardness
1-10
how many different Crystal shape systems are there
6
Minerals grow from the _____
inside
what are 3 ways minerals can form
molten rock, hot water,and evaporation
what are the two mineral groups
silicates and non-silicates
which mineral group is the most abundant in earths crust
silicate minerals
what elements are silicates made up of?
silicon and oxegon
non silicates do not contain which element
silicon
what mineral is used to make glass