scince Flashcards
what are the 5 characteristics of a mineral
naturally occurring
inorganic
solid
specific chemical composition (pure substance)
crystalline structure
what is a organic substance
it came FROM a living thing
what is an inorganic substance
it not come from a living thing
What is the difference between a pure substance and a mixture
a pure substance is made of only one type of substance either an element or a compound
A mixture does not have a specific chemical formula and is a blend of two or more
What types of substances do not have crystalline structure?
orgainc strucers man made substances, non soild and mixture
How many of the 5 characteristics of minerals must be true in order to consider the substance a mineral?
all 5
What is the difference between an ore and a gem?
and ore is mined for a profit
a gem is mined for its mined from beauty rarity and valued
what are the two ways minerals could form.
- magma that cools quickly
result in small minerals
when it cools slowly it turns into a large crystal (needs time to form)cooling of
-form solution
minerals that from after the evaporation of a liquid (usually water) in which the miners were dissolved
Silicates
Si &O (takes priority over all others )
Native elements
a single element
Halides
F or Cl
Carbonates
Co3
Sulfides
S
Sulfates
SO4 (takes priority over sulfates)
Oxides
metal ( Cu Fe Al and O)
