The 7 Types of crystals

The 7 types of crystals

Type	Number of sides	2 examples	Image
Triclinic Definition:	6 sides	Feldspar, Rhodonite.
Monoclinic Definition:	6 sides	Mica, Gypsum.
Orthombic Definition:	6 sides	Sulfur, staurolite.
Trigonal Definition:	6 sides	Quartz,
Hexagonal Definition:	6 sides	Calcite, Sapphire,
Cubic Definition:	4 sides	Sugar, Salt, Halite, Galena.
Tetragonal Definition:	6 sides	Zircon, Chalcopyrite.

Explain how the following crystals are formed?

Type
Salt	As the water evaporates from the solution, atoms bond together. The also molecules bond together forming crystals. Every molecule will form the same shape every time it forms.
Sugar	While the water evaporates, the solution becomes saturated and sugar molecules will continue to come out of solution. The crystals grow by molecule by molecule.
Snowflakes	A snowflake forms when an extremly cold water droplet freezes onto a pollen or dust. This will create an ice crystal, and when the ice crystal falls to the ground. The water vapour freezes onto the primary crystal, building new crystals.