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Well actually there are two types of objects that are not transparent:1.If the object is totally not transparent,it is called OPAQUE.2.If you can see through the object, but it appears blurred or unclear because of the scattering of light; it is called TRANSLUCENT.
the rock that is clear, is well it depends because there is more than 1 clear rock there is the diamond and a few others that you can see through and they are really crystals! it could be quartz..
Pure quartz, traditionally called rock crystal (sometimes called clear quartz), is colorless and transparent (clear) or translucent. Common colored varieties may contain other minerals and be translucent or even opaque.
refraction
Refraction
Yes. That's why it's called "clear".
Generally clear glass is transparent.
Generally clear glass is transparent.
Not all vinegar is clear and btw its called white vinegar which means its not clear
No, that's why it's called clear. Clear is not considered a color, it's a visual property that is the same as transparent.
diamonds that are clear -- that are transparent.
Clear glass and clear plastic are two examples of transparent materials.
Transparent
"Transparent" is "διαφανής" ["diafanis"].
Clear plastic is transparent.
The cornea is the raised bump that is clear.
Hardness and Streak