The huge variety of names used to denote silica-based materials (quartz, fused silica, fused quartz and more) can make it deeply confusing to differentiate. This article from Mo-Sci goes on a deep dive into the unique properties of both materials.
Quartz Glass: What Is It? How Is It Made? Properties, Uses
Understanding the Difference Between Fused Silica and Quartz Glass – Multi Lab
Fused silica, explained by RP; silicon dioxide, quartz, vitreous silica, glass, IR-grade, UV-grade, key properties, fabrication, quality, applications
Quartz and special glass - QSIL
Properties and Applications of Fused Silica/Quartz Glass
GLASS Glass- not just a functional material to let light into an area - ppt download
The difference between quartz glass and ordinary glass – MICQstore
Fused Silica, Electrofusion of High Purity Crystal Silica to Form Solid Mass
What is quartz, silica gel or fused quartz
Quartz vs. Fused Silica: What are the Differences?
Fused Quartz as an Optical Material