Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Milky Quartz with Iron Staining
Quartz (Silicon Dioxide, SiO2)
Chert (variations include Flint or Jasper)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Chert (Gravel pebble)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Tree Agate (Dendritic Agate/Quartz)
Silicon Dioxide (SiO2) with trace Manganese or Iron oxide inclusions
Green Aventurine
Tectosilicate, variety of Quartz (SiO2) containing Fuchsite (K(Al,Cr)2(AlSi3O10)(OH)2)
Ocean Jasper
Orbicular Jasper (Silicon Dioxide, SiO2)
Jasper (specifically Red Jasper or Iron-stained Chert)
Silicon dioxide (SiO2) with iron oxide inclusions
Jasper
Jasper (Cryptocrystalline Quartz; SiO2)
Chert
Microcrystalline Quartz (SiO2)
Chert (Jasper)
Microcrystalline Quartz (SiO2)
Chert Pebble
Microcrystalline Quartz (SiO2)
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
Chert
Cryptocrystalline Quartz (SiO2)
Pink Granite
Granite (Phaneritic igneous rock rich in Alkali Feldspar and Quartz)
Red Jasper
Jasper (Silicon Dioxide, SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
Included Quartz Beads (likely Phantom Quartz or Garden Quartz)
Quartz (SiO2) with various mineral inclusions
Citrine Quartz
Silicon Dioxide (SiO2) - Ferric Iron impurities
Jasper
Jasper (Silicon Dioxide, SiO2)
Chert (Flint variety)
Microcrystalline context of Quartz (SiO2)
Jasper (likely Lake Superior Jasper)
Silicon Dioxide (SiO2) with iron oxide inclusions
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Orange Calcite (often commercially sold as Honey Calcite or Aragonite)
Calcium Carbonate (CaCO3)
Graphic Granite (Runic Granite)
Pegmatite (Graphic Granite variety)
Snakeskin Jasper
Silicon Dioxide (SiO2) with iron oxide and calcium carbonate inclusions
Quartzite (Ferruginous)
Metamorphosed Quartz Sandstone (SiO2 with Fe2O3 impurities)
Jasper (Red Jasper with Quartz veins)
Jasper (Silicon Dioxide, SiO2)
Chert (Flint variety)
Chert (SiO2)
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
Chert / Jasper
Silicon Dioxide (SiO2)
Quartzite Pebble
Quartzite (SiO2)
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz Crystal Point
Silicon Dioxide (SiO2)
Milky Quartz
Quartz (Silicon Dioxide - SiO2)
Quartz (Iron-stained)
Silicon Dioxide (SiO2) with Hematite/Limonite impurities
Banded Chert in Matrix
Microcrystalline Quartz (SiO2)
Quartzite
Quartzite (composed primarily of SiO2)
Poppy Jasper
Silicon Dioxide (SiO2) with Hematite and Iron Oxide inclusions
Conglomerate with Quartzite Pebbles
Clastic sedimentary rock (Conglomerate)
Red Quartzite / River Siltstone
Quartzite (SiO2 with iron oxide inclusions)
Diopside (likely Chromian Diopside)
Diopside, part of Clinopyroxene family of inosilicates. Chemical formula: CaMgSi2O6. The green variety is often Chromian Diopside due to chromium impurities.