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A crystal is a mineral in its most stable form. |
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A crystal has a recognizable internal structure made up of repeating arrangements of atoms, known as crystal lattice. |
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The geometrical form of a crystal, with symmetrically arranged plane faces, is an expression of its internal atomic structure. |
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Every crystal of the same mineral will have flat faces meeting each other at identical angles. |
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Crystals are the most organized and stable matter in the Universe. |
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Crystals can grow to huge size or appear as microcrystalline masses. Where each crystal is too small to be seen with the naked eye. |
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Crystals will only form from a gas or liquid solution at the correct temperature and pressure. |
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Once crystallized, a mineral can remain unchanged for millions of years. |
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Subjected to extreme conditions of heat and pressure, a crystal may alter its forms or become another mineral altogether. |
