Every year, LCS Laboratory analyzes hundreds of vermiculite samples for asbestos content. In this post, we explain and illustrate what we observe under the microscope during our testing process.
What Is Vermiculite? Vermiculite is a mica-like natural mineral that expands into lightweight granules when heated. These granules are commonly used as absorbents and for heat insulation. However, some vermiculite mines contain elevated levels of asbestos. It is essential to note that asbestos in vermiculite is part of the mineral’s natural structure, not a contamination introduced during production.
The image on the right shows an asbestos crystal bundle growing from a cluster of vermiculite plates.
Our Analytical Process At LCS Laboratory, we carefully extract asbestos crystals from vermiculite samples, identify the type of asbestos, and provide detailed reports to our clients. When separated from vermiculite, asbestos typically appears as a grey fibrous rock. Asbestos is highly hazardous, and all analyses are conducted in fume hoods to ensure safety.
Safety Warning Handling vermiculite without professional safety equipment is dangerous. Never attempt to conduct experiments or examine vermiculite for asbestos contamination on your own.
Testing Your Attic Insulation for Asbestos If you need to test your attic insulation for asbestos, visit our Vermiculite Testing page for comprehensive instructions on sampling, pricing, and shipping. Our team is here to assist you in ensuring the safety of your home and workplace.
