Honduran black matrix opal is pinpoint specular opal in a matrix of black Tertiary basalt. The basalt formed due to volcanic activity as a result of subduction under central America. Opal is a hydrous silica that lacks a crystalline structure. Precious opal, such as Honduran opal, has a rainbow play of colors called opalescence. The pinpoint rainbow irridescent opal on the black matrix gives the stone a galaxy like appearance.
Due to the porous nature of the basalt, it is advised to stabilize the opal material.
Please enlarge and view the photographs for more detailed views. Shown wet to simulate polish. As with all natural rock, there may be fractures or pits to seal or work around. Each slab has the approximate dimensions listed. I use the longest and widest point and the thinnest, it’s not averaged.
We have worked hard with the lighting and the settings on the camera so that the colors are very accurate. Individual settings may affect color viewing on various devices and I cannot predict what your device will do, but on my Macbook Pro, they’re dead on for color. I appreciate your business!