original_query: What is the significance of the Quartz Roasting Pits Complex?
query: What is the significance of the Quartz Roasting Pits Complex?
answer: The Quartz Roasting Pits Complex is nationally significant as one of the earliest surviving, reasonably intact gold mining sites in Australia. It demonstrates an uncommon technology used for gold extraction, showcasing capital investment, technological transfer, and mining processes at the start of the gold boom.  The complex's roasting pits are rare examples of adapting lime-burning designs for quartz roasting, and the battery is the oldest surviving stamper battery building for gold mining in Australia.  The site's intactness allows for further understanding of technological transfer and adaptation during the early gold rush.