This material which often doesn t show play of color is also known as mexican opal boulder opal. Fire opal fire opal is transparent to translucent with a bodycolor that is usually yellow orange or red. The name fire opal refers to a fiery red orange or yellow background color. The density and pattern of the aligned silica spheres are responsible for the different colors refracted in the opal. It s given this name not because of a phenomenon but because of its background colors.
Moss opal opal containing inclusion s resembling moss. Fire opals can come either with or without a play of color or fire. If it exhibits a play of color it is known as precious fire opal. Mexican fire opal form of transparent opal from mexico usually with an orange or red colors. Fire opal is defined by its fiery yellow fiery orange or fiery red background color.
Although it does not usually show any play of color occasionally a stone will exhibit bright green flashes. Mexican fire opal usually refers to the form without play of color. While an opal is opaque and white displaying an iridescent play of colors in every color of the rainbow the mexican fire opal is transparent to translucent with a uniform red orange yellow or brownish body color. In general opal is a very soft gemstone 5 5 6 0 on the mohs scale of hardness and fire opal is no exception. A light wave diffracted through the opal causes a color sheen or scintillation in the stone.
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If you are just starting to learn about opal here are three varieties that might surprise you. Many people see the word fire and immediately think of the play of color displayed by precious opal. Boulder opal is opal with attached host rock. It can also exhibit a play of color when the stone is turned under a light source. Translucent to opaque with play of color against a light to dark background.Fire opal is the name used for the colorful translucent to transparent opal that has a background color of fire red orange or yellow. Common opal lacks this effect since its spheres are disordered or too compact to permit the light from refracting. Fire opal is a variety of opal that comes in red orange and yellow colors. Transparent to translucent with brown yellow orange or red bodycolor. Fire opal is all about background color and not about flash.
Iron content is what gives mexican fire opals their orange color. Fire opal is known for its intense red orange and yellow colors the colors of a fire. Iron content is what gives mexican fire opals their orange color. Fire opal is the name used for the colorful translucent to transparent opal that has a background color of fire red orange or yellow. If you are just starting to learn about opal here are three varieties that might surprise you.
Fire opal is known for its intense red orange and yellow colors the colors of a fire. Although it does not usually show any play of color occasionally a stone will exhibit bright green flashes. Moss opal opal containing inclusion s resembling moss. This material which often doesn t show play of color is also known as mexican opal boulder opal.
