Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Category
Browse mineral (variety of quartz) specimens identified by the Rock Identifier community.
Jasper (Yellow Jasper)
Silicon Dioxide (SiO2) with iron inclusions
Rutilated Quartz
Quartz (SiO2) with Rutile inclusions (TiO2)
Fuchsite
Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)
Amazonite
Triklinic Potassium Feldspar (KAlSi3O8)
Chert (Jasper/Flint variety)
Microcrystalline quartz (SiO2)
Chert / Jasper
Microcrystalline Quartz (SiO2)
Blue Lace Agate
Cryptocrystalline Quartz (SiO2)
Quartz (Yellow/Milky variety)
Silicon Dioxide (SiO2)
Jasper (yellow/cream variety)
SiO₂ (Cryptocrystalline Quartz)
Blue Calcite
Calcite (CaCO3)
Jasper (Green)
Silicon Dioxide (SiO2) with impurities
Gneiss (specifically a Granitic Gneiss)
Gneiss (Composition: Quartz, Feldspar, Mica)
Quartz with Iron Stains
Quartz (SiO2) with iron oxide/hydroxide staining
Tiger's Eye (specifically Blue Tiger's Eye / Falcon's Eye)
Pseudomorph of Quartz after Crocidolite (SiO2)
Banded Agate (specifically Carnelian Agate)
Silicon Dioxide (SiO2) - Cryptocrystalline Quartz
Rose Quartz
SiO2 (Silicon Dioxide)
Orange Quartzite / Carnelian Agate
Silicon Dioxide (SiO2)
Rose Quartz
Rose Quartz (SiO₂)
Chert (concretionary/nodular variant)
Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions
Bloodstone (Heliotrope)
Cryptocrystalline Quartz (SiO2) with inclusions of Hematite or Chlorite
Yellow Quartz / Quartz Pebble
Silicon Dioxide (SiO2)
Amazonite
Amazonite (KAlSi3O8 – a variety of Microcline, a Potassium Feldspar)
Jasper (likely a variety of Brecciated Jasper or a patterned variety)
Silicon dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rough Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of Titanium, Iron, or Manganese
Aventurine (likely Green Aventurine)
Quartz (SiO2) with included minerals (Fuchsite or Chlorite for green color)
Carnelian
Carnelian (Silicon Dioxide: SiO2)
Jasper
Jasper (a variety of Chalcedony, SiO2)
Jasper with Quartz Veining
Silicon Dioxide (SiO2) - Microcrystalline Quartz
Zebra Jasper
Silicon Dioxide (SiO2) with various inclusions
Ferruginous Quartz
Silicon Dioxide with Iron Oxide inclusions (SiO2 + Fe2O3/FeO(OH))
Snowflake Obsidian
Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)
Chevron Amethyst
Crystalline Silicon Dioxide with Iron impurities (SiO2)
Citrine
Silicon Dioxide (SiO2) - Yellow Quartz variety
Gneiss
Gneiss
White Quartz Pebbles
Quartz (Silicon Dioxide, SiO2)
Quartz (Chert/Chalcedony variety)
Silicon Dioxide (SiO2)
Chert (with Limonite staining)
Microcrystalline or Cryptocrystalline Quartz (SiO2)
Rose Quartz
Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese
Snowflake Obsidian
Spherulitic Obsidian (SiO2 + impurities)