Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored chiefly by iron oxides
Category
Browse mineral, variety of quartz specimens identified by the Rock Identifier community.
Tumbled jasper, likely red/brown jasper
Microcrystalline quartz (chalcedony), SiO₂, colored chiefly by iron oxides
Banded Jasper (Mookaite / Chert)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Polished white chalcedony or milky quartz pebble
Chalcedony, microcrystalline quartz (SiO₂), possibly with iron-oxide staining or a minor mineral inclusion
Milky Quartz
Silicon Dioxide (SiO2)
Dream Amethyst (Chevron Amethyst)
Silicon Dioxide (SiO2) with Ferric Iron impurities
Rose Quartz
Quartz (Silicon Dioxide, SiO2)
Smoky Quartz
Silicon Dioxide (SiO2)
Tumbled brown stone, likely jasper or chert
Microcrystalline quartz (SiO₂), probably iron-stained jasper/chert
Polished brecciated jasper (likely orbicular/picture jasper)
Microcrystalline quartz/chalcedony (SiO₂) with iron-oxide staining and breccia fragments
Yellow Chalcedony (Tumbled/Cabochon)
Silicon dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Milky Quartz Pebble
Silicon Dioxide (SiO2)
Blue Chalcedony
Silicon Dioxide (SiO2)
Red Jasper (Chalcedony)
Silicon Dioxide (SiO2) with iron oxide inclusions
Rose Quartz
Silicon Dioxide (SiO2)
Rutilated Quartz
SiO2 with TiO2 inclusions
Chevron Amethyst
Silicon Dioxide (Quartz variety) - SiO2
Rose Quartz
Silicon Dioxide (SiO2)
Quartz (Milky/Crystal Variety)
Silicon Dioxide (SiO2)
White Quartz
Silicon Dioxide (SiO2)
Emerald in Matrix
Beryl (Be3Al2Si6O18) with Chromium/Vanadium impurities
Carnelian Agate
Silicon Dioxide (SiO2)
Amethyst quartz crystal cluster
Quartz, SiO₂; purple coloration from irradiation and trace iron
Milky Quartz
Silicon Dioxide (SiO2)
Blue Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Blue Topaz
Aluminum Silicate Fluoride Hydroxide - Al2SiO4(F,OH)2
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Rose Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Rose Quartz
Silicon dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Clear Quartz
Silicon Dioxide (SiO2)
Zebra Jasper
Banded microcrystalline quartz (SiO2)
Rutilated Quartz
SiO2 (Quartz) with TiO2 (Rutile inclusions)
Green Aventurine
Quartz (Silicon Dioxide, SiO2) with fuchsite inclusions
Chert (Flint)
Microcrystalline Quartz (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz with Epidote or Chlorite inclusions
Silicon Dioxide (SiO2) with inclusions of Epidote {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Rose Quartz
Silicon Dioxide (SiO2) with traces of titanium, iron, or manganese