Lately we’ve been drawn to the striking, natural beauty that back-lit translucent stone panels can bring to a space. The illuminated panels can be used in a variety of interior and exterior applications: bar skirts, desks, interior accent walls, columns, ceilings, exterior screen walls, and landscape features to name a few. Depending on the desired stone, the application, and your budget, there are several options for achieving this dramatic look.

Natural Onyx and Sardonyx: Onyx is formed from water dissolving existing limestone and re-depositing it as quartz crystals fused into thin layers of stone, sometimes called sinter. In limestone caves, onyx is formed by drip water, in the formation of stalagmites and stalactites. Onyx is inherently translucent, with many banded and contrasting colors – onyx ranges in color from warm golds and browns, white, greens, and reds (sardonyx). Most of the onyx distributed here in Houston is imported from Mexico.
Since onyx is naturally translucent, it can remain relatively thick and still transmit light. Large, solid panels can be quite costly, but we’ve found that using it in a tiled application can help reduce costs. The tiled applications are also somewhat more stable than solid slabs since they are backed with a fiberglass mesh. As a rough estimate, we've had solid onyx priced at about $70-90/sf, uninstalled.
Keep in mind that onyx is a brittle, soft stone and is prone to engraving and discoloration from acids such as ketchup, lemons, alcohol, and cleaners. It is porous and requires sealing.
Laminated Stone Veneers: In applications that are subjected to daily abuse, or when the weight of natural slabs is prohibitive, laminated stone veneers are a great alternative. Stone slabs are milled down to only a few millimeters and permanently bonded to a glass substrate. Translucent stone veneers can be created from onyx, alabaster, quartz, marble, and granite – allowing for a huge range of colors and textures. The laminated panels are stronger, more lightweight, and can be made into much larger panels than natural stone slabs. Grout lines can be eliminated. The glass face allows the panels to be exposed to the elements with little maintenance.
However, we’ve found that this option can be very expensive. Depending on the stone you choose, laminated stone veneers can cost upwards of $300/sf.
Faux translucent stone: Several companies offer manmade alternatives to natural stone. Resin and acrylic technologies can create a similar aesthetic and are often highly translucent and very lightweight. Some manufacturers utilize recycled materials to develop their products. 3-form has a cost-effective alternative to real onyx made of translucent resin (not recommended for exterior applications). In January 2012, Okite will launch a translucent countertop line inspired by onyx using quartz crystals and polyester resin.