Water is not classified as a mineral, since it lacks a crystal structure being that it is in a liquid form. Many
scientific groups and references, including the acclaimed Dana's System
of Mineralogy, categorize mineraloids such as Opal and
Mercury together with the "true" minerals. However, virtually all mineral reference guides, including Dana's, exclude water from being classified as a mineral. (When water solidifies and turns into Ice, however, it is considered a mineral by all accounts.) We have included water in thus guide for the purpose of delineating its properties so that it can be compared to the true minerals. Water and Mercury are the only two naturally occurring, inorganic substances with a definitive
chemical formula that occur in a liquid state at normal
Water covers more than 3/4 of the earth's surface, and is its most common and vital resource. It is a major solvent, dissolving more substances than any other liquid. For this reason, water is almost always impure.
Colorless, green, gray, brown. Reflection of the sky give large bodies of water a sky-blue color. The actual color of pure water is colorless with a slight blue tinge.
Transparent to translucent
|Other ID Marks
1) Occurs in a liquid state.
2) Freezes at 32º F (0º C) and boils at 212º F (100º C).
3) When salt impurities are present, water is an electrical conductor.
Water is in a liquid state, and therefore lacking any crystalline form.
Hydrogen oxide. Almost always impure, usually with salt.
Water occurs in large and small bodies still bodies of water (oceans, lakes, ponds, swamps), in moving streams, rivers, and springs, as raindrops, in puddles, as dew droplets, etc.
Synonym of Saltwater (above)
Water is the fiber of all life, and there is no physical substance more important than water.