High Purity Quartz
From ore to final product, our quartz is exceptionally pure
1,723° C
melting point of quartz
99.999%
pure silica
SiO2
silica's chemical formula
While quartz is the second most abundant mineral in the Earth’s crust, quartz from Spruce Pine is uniquely prized for its chemical composition
With few grain-bound inclusions, our quartz is ideally suited for high purity processing. This is thanks to a series of geological process that allowed pegmatites to form almost without impurities.
The story of ore & technology
Raw ore is extracted from the Appalachian Mountains
After the ore is crushed, quartz is isolated from other minerals
Purification of quartz is a journey through multiple process steps and quality controls
Finished product is packed and delivered to customers globally
Exceptionally pure quartz for exceptionally demanding applications
A material ideally suited for high-tech manufacturing
High purity quartz sand has the distinct physical properties to become a successful crucible. Quartz crucibles are a critical component in the manufacture of photovoltaic cells and semiconductor chips. They are used to grow ingots that are then sliced and polished into ultra-thin wafers.
What makes our high purity quartz so special?
Quartz crucibles made from our high purity quartz are the result of teamwork spanning 3 continents, decades of innovation, and a curiosity that drives us to always do better
The journey of our quartz continues to our customers who transform it into crucibles for advanced manufacturing processes