A Chrystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions. In addition, macroscopic single crystals are usually identifiable by their geometrical shape, consisting of flat faces with specific, characteristic orientations. The scientific study of crystals and crystal formation is known as crystallography. The process of crystal formation via mechanisms of crystal growth is called crystallization or solidification.
The word crystal derives from the Ancient Greek word κρύσταλλος (krustallos), meaning both “ice” and “rock crystal“, from κρύος (kruos), “icy cold, frost”. contact supplier
Examples of large crystals include snowflakes, diamonds, and table salt. Most inorganic solids are not crystals but polycrystals, i.e. many microscopic crystals fused together into a single solid. Polycrystals include most metals, rocks, ceramics, and ice. A third category of solids is amorphous solids, where the atoms have no periodic structure whatsoever. Examples of amorphous solids include glass, wax, and many plastics.
Despite the name, lead crystal, crystal glass, and related products are not crystals, but rather types of glass, i.e. amorphous solids.
Crystals, or crystalline solids, are often used in pseudoscientific practices such as crystal therapy, and, along with gemstones, are sometimes associated with spellwork in Wiccan beliefs and related religious movements.
Methamphetamine, or meth, is an extremely dangerous drug. It increases the levels of a neurotransmitter (brain chemical) called dopamine, which is associated with pleasure.
Because meth causes a rush of happiness and energy, some people inject, snort, smoke, or swallow it. Using meth in any manner can cause serious health problems, including addiction, stroke, permanent brain damage, and overdose.
It’s important to understand the signs of meth use so you can help your loved ones get the treatment they need.