Crystals are solids that form by a regular repeated pattern of molecules connecting together. Shaped like cubes, hexagons, and tetragons. They are all around us. Some crystals sparkle, especially jewels like diamonds and rubies. Crystals are minerals that have grown into regular solid shapes.
No, not all crystals have smooth edges. Some crystals, like pyrite and fluorite, can have natural jagged or rough edges depending on their formation process. Smooth edges are more common in crystals like quartz and amethyst that form in more stable environments.
Not enough information. Some crystals will break if they cool rapidly, some crystals will not form correctly if the solution cools too quickly.
Aphanitic igneous rocks have individual mineral crystals that are too small to be seen without magnification. These rocks cool rapidly, resulting in the formation of tiny crystals. Examples include basalt and rhyolite.
Some rocks have crystals because the minerals within them cooled and solidified slowly, allowing enough time for the atoms to arrange themselves in an ordered, repeating pattern. This orderly arrangement forms crystals with distinct shapes and structures, giving the rock its crystalline appearance.
Some rocks may contain crystals, but not all rocks contain crystals. Crystals can be found in rocks that have volcanic origin.
some crystals are and some aren't.
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.
Thse crystals do not transmit light radiation.
In some cases it does contain crystals that formed prior to the eruption.
Purple crystals are commonly known as amethyst, and white crystals are usually quartz. Some specific examples include lepidolite for purple crystals and selenite for white crystals.
if u have ds the crystals are: yellow, blue purple and green.
Salt and ice are two common mineral crystals.
Some crystals have 6 sides while others have 4. Some of the four sided are rhombuses
Yes, in fact that's how a lot of crystals are formed.
Some are, not others.
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Oh yes, I have picked up some handsome quartz crystals in the mountains.