Quartz Geode
Image: <a rel="nofollow" class="external text" href="https://www.flickr.com/people/65449832@N00">R'lyeh Imaging</a> (CC BY 2.0)
Mineral NameQuartz Geode
Chemical FormulaSiO2
Mohs Hardness7
Crystal Systemtrigonal
Lustervitreous
Streak Colorwhite
Cleavagenone
Fractureconchoidal
Specific Gravity2.65
Colorsblue, white
Transparencytransparent to translucent
Type LocalityWorldwide, with notable deposits in Brazil, Mexico, and Uruguay
Mineral GroupSilicates
Usesdecorative, collector's item, jewelry, metaphysical
Associated Mineralschalcedony, calcite, feldspar
Raritycommon
Description
A macro photograph showcasing the sparkling interior of a geode, lined with numerous small, vibrant blue quartz crystals. The crystals exhibit a bright, reflective quality, creating a dazzling effect within the cavity.
Geological Context
Geodes are hollow, roughly spherical rock formations that form in sedimentary or volcanic rocks. They develop when mineral-rich water seeps into existing cavities, depositing layers of minerals, most commonly quartz, over long periods.
