A hydrated crystal is a crystal with water molecules bonded to its ions. Although it contains water, it is still a solid. It is created from a highly ionic substance that crystallizes from a water solution.Know More
Although hydrated crystals are solids, the water molecules can be removed through the crystal lattice by heating. Heating occasionally causes hydrated crystals to shatter in the process of removing the water molecules. If the crystal remains intact, the heating process forms an anhydrous crystal, which means "without water." Hydrated crystals generally change color once they become anhydrous.
Hydrated copper sulfate is a common type of hydrated crystal and is blue in color.Learn more about Geology
There are seven basic crystal shapes: cubic (isometric), tetragonal, orthorhombic, hexagonal, trigonal, triclinic and monoclinic. A crystal's shape is determined by one of seven crystal lattice systems, which are used to describe the crystal's geometric symmetry.Full Answer >
Crystal patterns are identified by measuring the height, width and the number of sides on each specimen. They fit into one of six categories: isometric, tetragonal, orthorhomibic, monoclinic, triclinic and hexagonal. The shapes help identify specific minerals and assist gem cutters in determining the best way to shape a gemstone.Full Answer >
Geologists classify crystals into six groups based on the number of axes and the angles of the facets, or faces, on a specimen. The science of crystallography labels the six categories as isometric, tetragonal, orthorhombic, monoclinic, triclinic and hexagonal.Full Answer >
Igneous rocks that are allowed to cool more slowly form larger crystals, while igneous rocks that cool quickly form smaller crystals. It is simply a matter of time. The longer it takes for magma to cool, the more time is allowed for the crystals to form.Full Answer >