Full Version: Need help identifying....
Colorado Prospector - Gem and mineral prospecting and mining forums > Prospecting, Mineral Collecting and Treasure Hunting Forums > Gem and Mineral Specimen Finds or Processes
I have a bunch of rocks and need help identifying..pretty sure this is opal but not sure what all the honey color is
Hello Arrow, welcome to the forums! 
There is not much I can tell from the picture but there are some home tests that can help confirm if it is opal or help identify it if it's something else.
Scratch Tests Opal hardness Mohs Scale= 5.5 to 6
Streak Tests Opal streak= white
Specific Gravity Test Opal Specific gravity= 2 to 2.25
These tests can help with your other rocks also.
There is not much I can tell from the picture but there are some home tests that can help confirm if it is opal or help identify it if it's something else.
Scratch Tests Opal hardness Mohs Scale= 5.5 to 6
Streak Tests Opal streak= white
Specific Gravity Test Opal Specific gravity= 2 to 2.25
These tests can help with your other rocks also.
This is a "lo-fi" version of our main content. To view the full version with more information, formatting and images, please click here.