Which one of these four gemstones is not an aluminium compound?
Correct answer: Amethyst
Soleil10001
Ok diamond is perfect carbon but aluminium compound in gem stones? Totally new information.
Brilliant quiz.
Hanoj
Amethyst is my favourite colour even though it is not my birth stone.
Player #96919
Soleil10001, I didn't get that one right, however, my favourite gemstone is Amethyst, gorgeous colour
Ergot
Amethystos also in Greek means sober or non drunk/intoxicated.
David
Lash: The Ruby and Sapphire are of the Corundum family; the Emerald is of the Beryl family, and both Corundum and Beryl families contain Aluminum.
toothless beachrat
Hanoj,
it's my birthstone, and I'm not particularly fond of it....
Calabtangan' Boyoyong
i never realized alum is a component of these gems
Lash
I guessed this correctly bc I remember hearing that the emerald, Ruby and sapphire are all of the Beryl family so I figured amythest was different. yay!
ChewyGazelle68623
Soleil10001, l got it right. thank z God!!!