The answer is that crystals can have a variety of different bonds! A crystal is formed of regular repeating units- nature doesn't care about the chemical bonds involved.
Firstly - ionic crystals, well known example common salt NaCl- consisting of electrically charged particles, "ions", Na+ and Cl-. (this is the answer some teachers expect.)
Secondly giant covalent molecules - nice example diamond- pure carbon joined by covalent bonds
Thirdly
Crystals can form from molecular substances- it can be difficult- but with care it can often be achieved- when definitive l X-Ray structure is determined - a lot of work often goes into producing a single crystal a single crystal of the substance. this is the method used to accurately show the structure of molecules in the solid state.
ionic bonds. not metallic or covalent bonds.
Metallic bonds are in a metallic lattic and covalent bonds are in a covalent lattice.
ionic bonds are in an ionic crystal lattice.
The above may be a view but most chemists would say that ionic, covalent or metallic bonds are associated with a crystal lattice. Crystal structures can be determined for all crystalline compounds which can be covalent, ionic or metals.
Salt has an ionic bond. Ionic bonds form between a metal cation (sodium) and a non-metal anion (chloride) in a crystal lattice structure, resulting in the formation of sodium chloride (NaCl).
The type of bond between silver atoms in a pure silver crystal is metallic bonding. Metallic bonding involves sharing of electrons among all atoms in the metal lattice, resulting in a sea of delocalized electrons that hold the metal atoms together.
Ionic bonding involves the transfer of electrons from one atom to another, resulting in the formation of positively and negatively charged ions. These ions are attracted to each other and arrange themselves in a regular, repeating pattern known as a crystal lattice. The strong electrostatic attraction between the oppositely charged ions holds the lattice structure together.
Ice is a type of solid crystal with a hydrogen bond structure. The bonds between water molecules in ice are hydrogen bonds which are weaker than covalent or ionic bonds. The crystal structure of ice is hexagonal.
Calcium chloride (CaCl2) is an ionic bond. It forms as a result of the attraction between the positively charged calcium ion (Ca2+) and the negatively charged chloride ions (Cl-) in a crystal lattice structure.
According to Wikipedia:"A diamond is a transparent crystal of tetrahedrally-bonded carbon atoms in a covalent network lattice that crystallizes into the diamond lattice which is a variation of the face centered cubic structure."
ionic bonds
Salt has an ionic bond. Ionic bonds form between a metal cation (sodium) and a non-metal anion (chloride) in a crystal lattice structure, resulting in the formation of sodium chloride (NaCl).
The type of bond between silver atoms in a pure silver crystal is metallic bonding. Metallic bonding involves sharing of electrons among all atoms in the metal lattice, resulting in a sea of delocalized electrons that hold the metal atoms together.
Barium sulfide contains an ionic bond, with barium (Ba) donating electrons to sulfur (S) to form a stable crystal lattice structure.
Ionic bonding involves the transfer of electrons from one atom to another, resulting in the formation of positively and negatively charged ions. These ions are attracted to each other and arrange themselves in a regular, repeating pattern known as a crystal lattice. The strong electrostatic attraction between the oppositely charged ions holds the lattice structure together.
Ice is a type of solid crystal with a hydrogen bond structure. The bonds between water molecules in ice are hydrogen bonds which are weaker than covalent or ionic bonds. The crystal structure of ice is hexagonal.
Calcium chloride (CaCl2) is an ionic bond. It forms as a result of the attraction between the positively charged calcium ion (Ca2+) and the negatively charged chloride ions (Cl-) in a crystal lattice structure.
There are 14 Bravais lattices in 3D space, which are categorized into 7 crystal systems based on the lattice parameters and symmetry. Each lattice type represents a unique way in which points can be arranged in space to form a crystal structure.
Sodium has a body-centered cubic crystal structure. Each sodium atom is located at the center of a cube and the surrounding lattice points.
Baking soda, or sodium bicarbonate, has ionic bonds. It contains positively charged sodium ions and negatively charged bicarbonate ions that are attracted to each other to form a solid crystal lattice structure.
A common type of point defect that occurs in a crystal of zinc sulphide is a vacancy defect. In this defect, an atom is missing from its lattice position, creating a gap or a vacancy in the crystal structure.