Garnet
Garnet Group (often Pyrope or Almandine); X3Y2(SiO4)3
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.
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Jasper with Quartz Veins
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Quartzite
Quartzite (primarily SiO2)
metamorphic
Snowflake Obsidian
Spherulitic Volcanic Glass (primarily SiO2 with Cristobalite inclusions)
igneous
Greenstone / Diabase Porphyry
Porphyritic Diabase (Micro-gabbro)
Igneous
Thunder Egg (Agate/Jasper filled)
Chalcedony variety Agate/Jasper in a Rhyolitic matrix
sedimentary
Prasiolite (Green Quartz) / Sea Glass Amalgam
SiO2 (Silicon Dioxide)
mineral
Chalcedony Pebble
Cryptocrystalline Quartz (SiO2)
mineral
Iron-Stained Quartz (Red Quartz)
Silicon Dioxide (SiO2) with Hematite/Limonite inclusions
mineral
Geode (Unopened)
SiO2 (Quartz-filled Sedimentary Nodule)
sedimentary
Chert with Chalcedony/Quartz Vug
Cryptocrystalline Silica (SiO2)
sedimentary
Fossilized Dinosaur Bone
Perineralized Bone (Fluorapatite/Quartz replacement)
fossil
Fuchsite
K(Al,Cr)2(AlSi3O10)(OH)2 (Chromium-rich Muscovite)
mineral
Milky Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Blue Sphalerite (likely dyed or treated Druzy Quartz/Agate)
Zinc Sulfide (ZnS) or Silicon Dioxide (SiO2) with trade-name enhancement
Mineral
Rose Quartz
Silicon Dioxide (SiO2)
mineral
Greenstone Porphyry
Altered Porphyritic Andesite/Basalt
igneous
Quartz
Silicon Dioxide (SiO2)
mineral
Dalmatian Jasper
Peralkaline Quartz-Feldspar Porphyry with Arfvedsonite
igneous
Chert (Jasper variation)
Silicon dioxide (SiO2)
sedimentary
Mixed Gemstones and Minerals
Mixed Silicates and Oxides (Quartz/Amethyst, Aventurine, Sodalite, Chert, Jasper)
mineral
Smoky Quartz (Vein Quartz)
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz with Chlorite or Epidote inclusions
Silicon Dioxide (SiO2) with inclusions
mineral
Banded Jasper / Yellow Jasper with Chlorite or Epidote inclusions
Silicon Dioxide (SiO2) with iron oxide and silicate impurities
sedimentary
Amethyst, Aventurine, and Quartz Mix
Silicon Dioxide (SiO2) with various inclusions/trace elements
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Quartz
Silicon Dioxide (SiO2)
mineral
Sandstone (Red/Brown Variety)
Arenite (composed primarily of SiO2 with Fe2O3 iron oxide inclusions)
sedimentary
K2 stone (azurite–granite)
Biotite granite hosting blue azurite (Cu₃(CO₃)₂(OH)₂), often with malachite and quartz
igneous
Jasper and Quartz Pebble
Silicon dioxide (SiO2) microcrystalline quartz variety
sedimentary
Quartz Pebble
Silicon Dioxide (SiO2)
sedimentary
Chert with Quartz Vein
Silicon dioxide (SiO2)
sedimentary
Nephrite Jade (or Serpentine)
Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals
Mineral/Rock
River Rock (Granitic Gneiss)
Foliated Granitic Gneiss
metamorphic
Petrified Wood
Silicified Wood (SiO2)
sedimentary
Yellow Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Petrified Wood
Silicified Wood (SiO2)
fossil
Milky Quartz with Iron Staining
Silicon Dioxide (SiO2)
mineral
Quartz (Tumbled)
Silicon Dioxide (SiO2)
mineral
Chalcedony (Agate / Quartz Pebble)
Silicon Dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Quartz (River Pebble)
Silicon Dioxide (SiO2)
mineral