Quartz (Mixed Varieties)
Image: <a rel="nofollow" class="external text" href="https://www.flickr.com/people/14730981@N08">James Petts</a> from London, England (CC BY-SA 2.0)
Mineral NameQuartz (Mixed Varieties)
Chemical FormulaSiO2
Mohs Hardness7
Crystal Systemtrigonal
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity2.65
Colorsgolden-brown, black, clear, white, pink, dark brown, reddish-brown
Transparencytransparent/translucent
Type LocalityWorldwide
Mineral GroupSilicates
Usesjewelry, ornamental objects, collector's items
Associated Mineralsfeldspar, mica, calcite
Raritycommon
Description
A collection of tumbled quartz gemstones, featuring golden-brown and black banded Tiger's Eye, clear quartz, pink rose quartz, dark smoky quartz, and reddish-brown chalcedony.
Geological Context
Quartz is a ubiquitous mineral found in various geological environments, including igneous, metamorphic, and sedimentary rocks. These tumbled stones are typically sourced from large deposits of different quartz varieties.
