American-Made Blown Glass Lighting
Quality pendant lighting with handmade glass shades, ready to order. Browse our curated collection of designs and find the perfect fit for your next project.
Where History Meets Innovation
Who We Are
We are more than a manufacturer – we are guardians of a time-honored tradition of glassblowing.
Our artisans preserve the history of design through creating handmade glass from our extensive collection of historic cast iron molds, creating stunning pieces that tell a story of heritage, skill, and dedication.
Introducing Our New Collection
Mid-Century Modern
Discover Silica Studio’s first original collection of glass shades, where vibrant creativity comes to life.
Inspired by explorations into organic product forms in the 1950s and 60s, this collection brings a design-savvy feel to any space. Each shade is handcrafted, combining traditional media with a modern silhouette.
Our Products + Services
Each of our signature pendants originates from our extensive catalog of historic glass molds. Beyond our curated collections, we offer custom decorative lighting canopies using our glass shades to create one-of-a-kind installations. Sign up for our resources for designers to access CAD and BIM models and drawings to integrate into your projects for free.
Pendant Lighting Collections
Designer Resources + Services
Custom Works + Canopies
Custom Works
Founded by Dierk van Keppel in 1991, Rock Cottage Glassworks, Inc. has been devoted to crafting custom American-made artisan glass.
Our team of glassblowers specialize in large-scale public and private installations and have worked with private residencies, companies, and public art programs to achieve stunning glass works of art.
Rock Cottage Glassworks is also the parent company of its mold-blown glass lighting line Silica Studio, which started in 2019.
Explore our full range of handcrafted glass shades – from our classic designs to our newest contemporary releases – all in one place.
CAD Models + Materials Library
Experience the luxury of our mold-blown glass shades in a whole new way by accessing our digital resources for your own projects.
Digital Product Catalog
“The foundation of my ideas resides in the glass.
Humankind has studied the macro through the glass telescope and studied the micro through the glass microscope, some wanting to discover science, some wanted to discover Eden.
What remains the same is the glass that reveals our nature.”
Dierk Van Keppel, Silica Studio Founder