Diamond (Colorless/White)
Carbon (C)
mineral
Category
Man Made Glass (Often Grouped With Minerals In Lapidary)
Browse man made glass (often grouped with minerals in lapidary) specimens identified by the Rock Identifier community.
Quartz Pebble (Sea Glass-like Quartz)
Quartz (Silicon Dioxide - SiO2)
mineral
Orthoclase Feldspar (or K-Feldspar)
Orthoclase (KAlSi3O8)
Mineral
Chert (varietal Flint)
Silicon Dioxide (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Chert Breccia (with Iron Staining)
Microcrystalline Quartz (SiO2) with iron oxides (Limonite/Goethite)
sedimentary
Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Glass Nugget (Tumbled Glass)
Amorphous Silicon Dioxide (SiO2) with additives
mineraloid (man-made)
Yellow Chert (Chert / Cryptocrystalline Quartz)
Silicon Dioxide (SiO2)
sedimentary
Quartz (Pebble)
Quartz (SiO₂)
Mineral
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
mineral
Chert (Flint)
Silicon Dioxide (SiO2)
sedimentary
Slag (Industrial Glass/Metal)
Ferrous slag or Glassy silicate byproduct
Antropogenic rock (Man-made)
Olivine (Peridotite)
Olivine Group; (Mg, Fe)2SiO4
igneous
Stilbite
Stilbite-Ca (Hydrated calcium sodium aluminum silicate), NaCa4(Si27Al9)O72·28H2O
mineral
Garden Quartz (Lodalite)
Silicon Dioxide with various mineral inclusions (SiO2)
mineral
Jasper with Hematite inclusions
Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3)
sedimentary
Sea Glass (Teal/Turquoise)
Amorphous Silica (SiO2) with trace metal oxides
Anthropogenic (Man-made material processed by nature)
Chert (variations include Flint/Novaculite)
Chert (formula: SiO2)
sedimentary
Chert (Flint)
Chert (Silicon Dioxide, SiO2)
sedimentary
Diamond
Carbon (C)
mineral
Muscovite Mica
Muscovite (Potassium Aluminum Silicate Hydroxide Fluoride), KAl2(AlSi3O10)(OH,F)2
mineral
Greenstone / Serpentinite
Serpentinite (composed primarily of minerals from the serpentine group Mg3Si2O5(OH)4)
metamorphic
Sandstone Concretion
Sedimentary concretion
Sedimentary
Chert (Flint)
Microcrystalline quartz (SiO2)
sedimentary
Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz (Milky or Cloudy variety)
Quartz (Silicon Dioxide, SiO2)
mineral
Chert (specifically Yellow/Honey Jasper variety)
Cryptocrystalline Quartz (SiO2)
sedimentary
Serpentinite
Serpentinite (composed primarily of Serpentine group minerals, e.g., Antigorite, Lizardite, Chrysotile)
metamorphic
Quartzite with Vugs
Metamorphosed Quartz Sandstone (SiO2)
metamorphic
Chert (Jasper type)
Microcrystalline Quartz (SiO2)
sedimentary
Milky Quartz
Silicon Dioxide (SiO2)
mineral
Blue Quartzite
Quartzite with inclusions (often Dumortierite or Magnesio-riebeckite)
metamorphic
Botryoidal Chalcedony (likely Chert or Agatized Coral)
Silicon Dioxide (SiO2)
mineral
Almandine Garnet
Almandine - Fe3Al2(SiO4)3
mineral
Heulandite with Stilbite
Heulandite-Ca ((Ca,Na)2-3Al3(Al,Si)2Si13O36·12H2O) and Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O)
mineral
Druzy Quartz on Chert/Siltstone
Silicon Dioxide (SiO2) on Microcrystalline Silica/Siltstone matrix
sedimentary
Chert (Jasper/Flint variety)
Microcrystalline Quartz (SiO2)
sedimentary
Chert Nodules
Chert (Silicon Dioxide, SiO2)
sedimentary
Picture Jasper
Silicon Dioxide (SiO2) with iron oxide and clay inclusions
sedimentary
Man-made Dyed Aura Quartz
Silicon Dioxide (SiO2) with metallic coating/dye
mineral
Chert (Jasper variation)
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary