Study your flashcards anywhere!

Download the official Cram app for free >

  • Shuffle
    Toggle On
    Toggle Off
  • Alphabetize
    Toggle On
    Toggle Off
  • Front First
    Toggle On
    Toggle Off
  • Both Sides
    Toggle On
    Toggle Off
  • Read
    Toggle On
    Toggle Off
Reading...
Front

How to study your flashcards.

Right/Left arrow keys: Navigate between flashcards.right arrow keyleft arrow key

Up/Down arrow keys: Flip the card between the front and back.down keyup key

H key: Show hint (3rd side).h key

A key: Read text to speech.a key

image

Play button

image

Play button

image

Progress

1/12

Click to flip

12 Cards in this Set

  • Front
  • Back
Gems
a rare mineral prized for their beauty
gemstone
a durable and beautiful mineral that can now be cut and polished
important gems
rubies are used in laysers, quartz is used in electronics and timepieces, industial diamonds are used to heavy duty drills synthetic diamonds are now indistinguishable from the natual ones
pearls
formed from oysters so they are organicly created
Opals
lack crystaline structure
Ores
minerals or a combination of minerals from which metals or nonmetals can be distracted in usable amounts
metals and examples
are minerals or elements that usually have shiny surfaces that are a good conducor of heat and electricity
iron gold and aluminum
smelting
a process in which ore is made so hot that metals of other useful substances may be extracted
Metals which are not mierals include:
steel: made with conium and iron
brass: made from copper and Zinc
not naturally occuring
nonmetals
have dull surfaces and are usually poor conductors of electricity
ex. sulfer
vein minerals
minerals that will fill up cracks and fractures in a rock. Sometimes they will fill empty spaces caused by collapsed rocks
titanium and example
a lightweight, durable metal that can be extracted from two minerals
ilmenite and rutile