The Relationship Between Opals & Water

Opals are gemstones that are known for their unique patterns and array of color. However, they are also known for their relationship with water which makes them as natural as they come. Opals are composed of small silica spheres that are arranged in a structured pattern. When water is present in the space between these spheres, it can cause the opal to portray unique properties giving it its beauty.

 

One of the most fascinating things about opals is that they are porous and can absorb water. This is due to the fact that water is at hand from where opals are derived. They form in areas with a lot of temporary rainfall with rocks such as sedimentary rocks and volcanic ash. When an opal absorbs this water, it can change the way it looks and behaves.

 

One of the most notable effects of water on opals is their play of color. When light enters an opal, it interacts with the silica spheres inside and produces the color that we see appear. When an opal absorbs water, it can enhance or even change the play of color. This effect is known as "water content," and it is a desire seeked after in opals.

 

Opals that have a high water content tend to have a brighter and more vibrant play of color. This is because the water molecules in the opal act as prisms, bending and refracting light in a way that intensifies the colors. Additionally, opals with a high water content can portray a phenomenon known as "opalescence," which gives opals a type of glowing luminescence look.

 

However, too much water can be detrimental to opals. If an opal absorbs too much water, it can become cloudy and lose its play of color. This is because the water can fill in the spaces between the silica spheres, disrupting the orderly arrangement that produces the play of color.

 

Opals and water have a hate/love relationship that affects the way opals appear and react. While water can enhance opals giving them this beautiful unique look they acquire, it can also ruin the opal if in excess. Once you understand how water and opals work together as one, you can see how the specifications of an opal have to meet a certain criteria to get the colors you’ve been looking for.