minerals earth science Flashcards
electroplanting
a practical way to extract to extract aluminum from bauxite.
mineral
naturaly occuring inorganic crystalline solid that has a definite chemical composition.
ores
rocks that contain certain valuable minerals.
compound minerals
pure substances. compunds
minerologists
someone who studies and classifies minerals.
streak
scraping a mineral on a porcelain plate and the powder that is left behind is used to classify mineral.
luster
amount and quality of light it reflects from it’s surface.
fracture
how a mineral breaks. does it break in sheets?
Moths scale
rates hardness of minerals in comparison to each other.
acid test
placing a drop of acid on mineral. if mineral fizzes and and put of grass then minerologists can narrow down what mineral it could be.
radioactivity
some of the their atomic nuclei change by giving off particles and rays.
luminescence
minerals that glow but are not hot. they don’t glow oon their own.
carat
unit of mass for gemstone
native minerals
minerals in their pure state in matter
veins
cracks in rocks
diamons
formed of pure carbon
diamond pipes
where diamonds are mined
carat
what the size of a stone is measured in.
silicates
make up about 25% of all known minerals and about 40% of of the common ores
Quartz
second most common is a pure silicate
oxides
minerals made of oxygen and some other elements
sulfides
minerals made up of one or more metals
carbonates
minerals containing one or more metal ions and the carbonate ion.
halides
mineral salt compounds.
