Calcite Laser Cleaning Settings

When laser cleaning Calcite, I've seen the biggest challenge come from its brittle nature, which sets it apart from tougher sedimentary stones like limestone that hold up better under heat. This fragility means localized heating can easily cause micro-cracks, especially since Calcite absorbs laser energy quickly without spreading the warmth evenly, unlike more conductive materials that dissipate it faster. To handle this, start by using gentler power levels and slower scan speeds, allowing the laser to gently lift contaminants without stressing the surface too much. I've found that multiple light passes work best here, as they gradually restore the stone's natural clarity in cultural artifacts or architectural pieces, preserving its optical qualities that make it unique for applications in optics or heritage conservation. This approach contrasts with harder rocks where you can push higher intensities right away. Just watch out at the end—overdoing passes on porous areas can lead to unwanted etching, so always test on a small spot first to keep the finish intact.