Mineral grains are crystals or pieces of crystals that vary widely in chemical composition. There are over 4,000 different minerals that have been identified so far.
7
Cubic: crystals have 6 sides. Tetragonal: crystals have 4 sides. Orthorhombic: crystals have 3 unequal sides. Hexagonal: crystals have 6 sides. Monoclinic: crystals have 4 sides. Triclinic: crystals have no set number of sides.
1. Discuss recent developments in the structure of the atom. What new particles have been identified?
There are approximately 2.25 million sugar crystals in a pound of sugar.
92 atoms have been identified, i think(:
Mineral grains are crystals or pieces of crystals that vary widely in chemical composition. There are over 4,000 different minerals that have been identified so far.
their are about 100
2
i do not know
4,500
4,000
four
About 3 Millions.
the population is 1005,but about 19 have been named and identified
( 1,250,000 ) have been identified
How many are other than pollen, fog, and dust, which are of natural origin, more contaminants have been identified as air pollutants?