The ideal pure quartz rock crystal could be described as clear, colorless, six sided, and having a pyramidal termination. In reality, quartz crystal can appear clear, intruded, milky, or cloudy; appear in numerous dimensions, from watermelon-sized to microscopic; can appear in a multitude of colors; and can appear in numerous habits, such as euhedral, drusy, globular, and massive.
its looks like a crystal you might find it in a cave and sometimes it can be slitely green or redish
A clear rock that can be diffrent colors.
you can not melt crystal.
glossy and/or greasy
crystal rocks is melted magma that has cooled down and hardened
it looks like melted iron and magma and stuff
this question need more detail. first of all, a crystal's external appearance is merely a representation of its ordered internal atomic structure. to look at crystal structure in general, I recommend researching the 14 Bravais Lattices. Depending on what crystal you are talking about, its internal atomic structure will be different.
The particle size (grain size--crystal size) in igneous rock is largely dependent on the amount of time spent cooling and solidifying from molten rock. If cooled quickly, crystals will have little time to grow. Slow cooling allows time for larger crystal growth.
A big 80,000 dergrees ball of melted rock but who cares you die as soon as you touch the mantle
crystal rocks is melted magma that has cooled down and hardened
White
Melted
they look like plastic in texture.
Like melted smoked crack and dark
it looks like melted iron and magma and stuff
a raichu on meth
Search images.google.com for sulphus crystal to see numerous examples.
A calcite crystal comes in a variety of sizes and shapes. There are some that do look like a diamond to the naked idea but you can tell that they are different if you look closely.
Cirrus Clouds
clearish rhomboids.
A hot frozen mess.