Quartz
Chromium is a mineral. It is a chemical element in the periodic table and has the symbol Cr.
Galena
Orthoclase Feldspar.
Leucite is a mineral. It begins with the letter L.
Dirty Jobs - 2005 Mud Mineral Excavator 4-6 was released on: USA: 12 February 2008 Australia: 15 October 2008
Andradite is a mineral and aplite is rock that start with the letter 'a'.
Orthoclase feldspar is 6 on the Mohs scale of mineral hardness.
Aluminum is a mineral. It begins with the letter A.
mineral
mineral
Pyrite is a mineral that starts with the letter "P." It is a common mineral known for its metallic luster and brassy yellow color.
Gold is a valuable mineral
Many mineral can not scratch Quartz.Remember the mnemonic for Mohs' scale of hardens "The Girls Can Flirt And Other Queer Things Can Do", where the mineral for each first letter is:(softest)TalkGypsumCalciteFluoriteApatiteOrthoclase (Feldspar)QuartsTopazCorundumDiamond(hardest) Thus minerals 1-6 can not scratch quartz.
Zircon is a mineral that starts with the letter "Z". It is a silicate mineral commonly used in jewelry as a gemstone.
Variscite is a mineral that starts with the letter V. It is a relatively rare hydrated aluminum phosphate mineral that is sometimes used as a semi-precious gemstone.
caca
Mineral