marble is very hard. (:
one of marbles uses are counter tops
Uranium marbles are glass marbles made with uranium oxide, which gives them a unique fluorescent glow under ultraviolet light. Regular marbles, on the other hand, are made from various materials like glass, clay, or metal, without the use of radioactive materials. Uranium marbles are collectibles due to their distinctive appearance and historical significance.
Well, if 13 marbles represent 1 marble in the jar, then it's safe to assume there are 13 marbles in the jar. Simple math, my friend. So, if you're looking to start a game of marbles, looks like you've got a baker's dozen worth of fun waiting for you in that jar.
The hardness of Limonite is 4 t0 5.5 on the mohs hardness scale.
There has to be 12 marbles in the group. If 4 are red that is 1/3 of 12 and if 3 are blue that is 1/4 of 12. The rest can be any color. That is how you explain how four red marbles can make up 1/3 of a group of marbles and three blue marbles make up 1/4 of the same group :)
Marble is a metamorphic rock and the hardness of the marble is determined by the indigenous rock of the area rather than color. There are some white marbles, such as Vermont White (from Brazil) that had a hardness close to that of granite.
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
24 red marbles
If there are 20 red marbles and 40 blue marbles, the ratio of red to blue is 1 over 2. The number of white marbles does not matter.
48 marbles