Every color in the rainbow, due to impurities.
silvery-white
Gypsum crystals are the most common type of crystal mineral found in clay. Gypsum Crystal are known for their flexibility and is commonly used for wallboards or plaster products.
The most common color for clown noses is red. Although many other color noses are available, and sometimes used, the red clown nose used by many circus clowns has become cemented in popular culture as an essential part of a clown's costume.
Highly variable. Are you talking crystals, or massive material for carving? It's a common mineral, seldom too valuable, though undamaged and colorful crystals can be worth hundreds.
For male is Brown Hair and Brown Eyes. But for female well any.
You can eat some kinds of crystals... salt crystals and sugar crystals, for example. It's probably not a good idea to eat, say, quartz crystals, though.
The most common color of geode that you can buy at the store would be grey with white. Sometimes dyes are added to "enhance" their beauty. The hollow geodes with crystals usually have white crystals.
Pure table (sodium chloride, NaCl) is white. Crystals are colorless.
Minerals form into crystals or clusters of crystals. In the crust, the most common individual mineral is quartz, and the most common class of minerals are the silicate minerals.
Quartz
Geodes come in a large variety of colors depending on the mineral makeup and amount and type of impurities that may be present.
most common skittle color is purple.
Diamonds are probably the most well known crystals, but ice is the most common. no what the freak ice isn't a cyrstal... its frozen water =P
Brown is the most common color.
In 2010 it again white. red is the most common color
Red is the most common color for sharps containers.
the most common eye color is brown Brown.
ice crystals form the most common precipitation in Antarctica, most of which evaporates before settling on the ice cap.