Opal is composed primarily of silica and water. It is a mineraloid, not a true mineral, because it lacks a crystalline structure.
SiO2 .nH2O
True. Veins minerals are deposited from solutions like water that flow through cracks in rocks, carrying dissolved minerals which crystallize and form veins as the solution evaporates or cools.
true
No.
True. Some crystals are formed when minerals dissolved in liquids, such as water, solidify and create geometric patterns known as crystals. The process typically involves the slow cooling or evaporation of the liquid, allowing the minerals to come together and form crystalline structures.
The planet is Mercury that is true... just trust me
Yes. That is true. Water is very good solvent for most of the minerals. Minerals are very essential for the life to sustain. Ions are formed out of minerals in water. Such ionization is essential for most of the chemical reaction to occur. The free flowing ions can readily interact to from new chemicals.
The true color of Mercury is mostly gray.
Opal, being amorphous, is not really a mineral but a mineraloid. One of the scientifically accepted standards defining a mineral is that a mineral must have a crystal structure, which opal lacks. Many scientific groups and references, including the acclaimed Dana's System of Mineralogy, categorize Opal together with the "true" minerals. For this reason, Opal -- as well as other amorphous types that fall under the definition of a mineraloid.
Rainwater is typically pure when it falls but can pick up minerals like calcium, magnesium, and potassium as it percolates through soil and rocks on its way to a water source. The amount of minerals in rainwater can vary depending on factors like location and air pollution levels.
Nintendo has kept it a secret, but some people are just to smart.Pokemon Opal is going to be released July 20th.I hope it is true and I'm sorry if it's not.