Ball-bearings.
fossils are not metallic minerals. marbles are non metallic minerals.
steelie
To separate flour and marbles, you can use a sieve or a mesh strainer. Pour the mixture into the sieve, allowing the flour to fall through while the larger marbles remain on top. Alternatively, you could use a magnet if the marbles are metallic, or simply pick them out by hand if the quantities are small.
A metallic playing marble is a type of marble made of metal instead of glass or clay. These marbles can have a shiny or reflective surface and are often used in traditional marble games or collections.
He will have 13 blue marbles and 10 green marbles.
10 Green marbles, 13 Blue marbles.
He has 10 green marbles.
There could be 12 white marbles and 16 red marbles
at least 39 blue marbles
8:6
12 blue marbles
12 blue marbles