Description: 272 carat wood replacement opal.

Weight: 272 carat.

Origin: Banten, Indonesia.

Treatment: pieces have been rubbed in baby oil and may have been heated as that is a common practice in Indonesia to bring out the color.

Shape: Roots & branches.

Pattern: Black potch with sections of colorful opal. This is specimen grade.

Dominant Colors: Red, orange, green, blue.

Size: The biggest piece is 33mm x 29mm x 21mm.

Condition: Original.

Comments: These are specimens of wood replacement opal. Indonesian opalized wood is petrified wood in which the wood grains have been replaced by opal. Indonesia is a volcanic island chain that is currently active and this volcanic activity produces a wide array of unusual minerals and rocks. When wood is buried by volcanic ash and silica is mobilized from the ash, the silica will penetrate into the wood and replace the grains of the wood. Opal is a hydrated silica. The silica is often accompanied by other elements that give the opalized wood a wide range of colors. Red, green and purple colors are usually from iron minerals. Manganese often creates pink, black and brown coloration and copper minerals can produce blue and green.

Photos & Videos: taken under natural lighting conditions in our office (sun and shade). No lights, filters, photoshop or enhancements of any kind have been used. What you see is what you get.

Shipping info: you only pay to ship the first stone. Any additional purchases within 7 days will be added to the package at no additional cost. Please inform us if you want us to wait the seven days before shipping your order (otherwise it will be shipped upon payment and you will not be able to combine with other purchases). All stones shipped from the Czech Republic.

Return policy: when you receive your order - if for any reason you aren't fully satisfied you may return the untouched stones within 10 days for a full refund. Please just drop us a message and include a tracking number. We aim to please and do not want anyone to be unhappy so never hesitate to contact us. Once the stone has been cut, polished or modified in any way it is not possible to return.