Question

Beautiful crystals arise from various chemical substances. A single chemical can, sometimes, give rise to different crystals because of different:
(A) angles of vision
(B) arrangement of atoms in space
(C) composition
(D) weight of atoms

Answer 1

Hint: Crystal healing is a pseudoscientific alternative medicine technique that involves the use of semi precious stones and crystals including quartz, agate, amethyst, and opals. The practice's adherents say that these have therapeutic properties, however there is no scientific evidence to support this claim.

Complete answer:
A crystal, also known as a crystalline solid, is a solid whose components (such as atoms, molecules, or ions) are organised in a highly organised microscopic structure that forms a crystal lattice that extends in all directions. Furthermore, macroscopic single crystals are generally distinguished by their geometrical form, which consists of flat sides with distinct orientations. Crystallography is the scientific study of crystals and crystal formation. Crystallization or solidification is the process of forming crystals through processes of crystal growth. Crystal structure is a description of the orderly organisation of atoms, ions, or molecules in a crystalline substance used in crystallography. The inherent nature of the component particles results in symmetric patterns that recur along the primary directions of three-dimensional space in matter, forming ordered structures. Because of differences in the arrangement of atoms in space, many types of crystal systems have emerged.

Note:
The unit cell of the structure is the smallest group of particles in the substance that makes up this repeating pattern. The symmetry and structure of the whole crystal are entirely reflected in the unit cell, which is built up by recurrent translation of the unit cell along its primary axes. The nodes of the Bravais lattice are defined by the translation vectors.