silica mineral: Quick Facts

Written and fact-checked by

The Information Architects of Encyclopaedia Britannica

Photos and Videos

Smoky quartz from St. Gotthard, Switz.

Amethyst geode from Nova Scotia, Can.

Quartz agates from Mexico.

How Can Glass Paint Protect Surfaces from Sunlight?

See All Videos and Images →

Topics

melanophlogite quartz opal coesite tridymite cristobalite stishovite flint high quartz white opal feldspar feldspathoid zeolite silica gel