Marble
Recrystallized Calcite (CaCO3) Rock
metamorphic
Category
Sedimentary (Processed Mineral Product)
Browse sedimentary (processed mineral product) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Processed Mineral Product) in the encyclopedia
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Aventurine
Silicon Dioxide (SiO2) with inclusions
mineral
White Marble
Recrystallized Calcite (CaCO3)
metamorphic
Rose Quartz
Silicon Dioxide with trace inclusions (SiO2)
mineral
Lepidolite
K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2
mineral
Blue Quartzite
Quartzite (silicon dioxide, SiO2)
metamorphic
Sandstone (Picture Sandstone)
Arenite (primarily SiO2)
sedimentary
Tiger's Eye
Silicon dioxide (SiO2) with crocidolite inclusions
Mineral
Agate
Silicon dioxide (SiO2)
mineral
Quartz Pebble
Silicon Dioxide (SiO2)
mineral
Dyed Agate
SiO2
Mineral
Black Tourmaline
Schorl (Sodium Iron Aluminum Borosilicate Hydroxide)
mineral
Smoky Quartz
Silicon Dioxide (SiO2)
mineral
Aquamarine (Beryl)
Beryllium aluminum silicate (Be3Al2Si6O18)
mineral
Assorted Semi-Precious Gemstone Crosses
Quartz, Silicates, Carbonates (various)
mineral
Rhodonite
Manganese silicate (Mn,Fe,Mg,Ca)SiO3
mineral
Quartz (Milky Quartz)
Silicon Dioxide (SiO2)
mineral
Gold Nugget
Native Gold (Au)
mineral
Quartz Pebble (Water-worn)
Silicon Dioxide (SiO2)
mineral
Milky Quartz
Quartz (Silicon Dioxide, SiO2)
mineral
Quartz
Quartz (SiO2 - Silicon Dioxide)
Mineral
Marble
Recrystallized Calcite (CaCO3)
metamorphic
Aura Quartz (Titanium/Gold coated)
Silicon Dioxide (SiO2) with metallic vapor deposition
mineral
Citrine Quartz
Silicon Dioxide (SiO2) with iron impurities
mineral
Anthracite Coal
Anthracite (Carbon C)
metamorphic
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Quartz on Matrix
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Chert (Nodule)
Chert (Alpha-Quartz, SiO2)
sedimentary
Map Jasper (Grey Picasso Jasper)
Silicon Dioxide (SiO2) with impurities
sedimentary
Red Jasper
Jasper (Silicon Dioxide, SiO2)
sedimentary
Basalt with Amygdules
Amygdaloidal Basalt
igneous
Quartz with Iron Staining
Silicon Dioxide (SiO2) with Ferruginous Oxides
mineral
Amazonite
KAlSi3O8 (Potassium aluminum silicate - blue-green variety of Microcline)
mineral
River Cobble (likely Quartzite or Limestone)
SiO2 (Quartzite dominant) or CaCO3 (Limestone dominant)
metamorphic or sedimentary
Amazonite
Potassium Feldspar (KAlSi3O8)
Mineral
Serpentinite (Serpentine Rock)
Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.
Metamorphic
Dyed and Metallic Coated Agate Geode
Silicon Dioxide (SiO2) with titanium/gold vapor deposition coating
sedimentary (primary) with artificial modification
Bacan Stone (Chrysocolla-in-Chalcedony)
Chrysocolla in Chalcedony (SiO2 with (Cu, Al)2H2Si2O5(OH)4·nH2O)
mineral
Anthracite Coal
Anthracite (Metamorphosed Carbon)
sedimentary