Diorite (Salt and Pepper Rock)
Diorite
Category
Browse igneous, sedimentary, and metamorphic mix specimens identified by the Rock Identifier community.
Diorite (Salt and Pepper Rock)
Diorite
Septarian Nodule (Septarian Dragon Stone)
Septarian Concretion (Composition: Calcite, Aragonite, and Limestone/Clay)
Specular Hematite with Quartz and Limonite
Hematite (Fe2O3) with Quartz (SiO2) and Limonite (FeO(OH)·nH2O)
Asphalt concrete
Anthropogenic conglomerate
Asphalt (Bituminous Rock)
Natural bitumen or Bituminous limestone/sandstone
Unakite
Altered Granite (Epidotized Granite)
Lapis Lazuli
Lapis Lazuli (Complex silicate mineral mix including Lazurite, Pyrite, and Calcite)
Costume Jewelry Gemstones (Emerald-imitation and semi-precious beads)
BeCuAl6Si6O18 (Beryl structure), frequently simulated by glass or synthetic spinel
Unakite
Epidotized Granite
Sandstone (Greywacke)
Arenite / Clastic Sedimentary Rock
Pink Granite
Granite (Phaneritic Quartz-Feldspar rock)
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
Yellow Quartz (Citrine/Yellow Jasper mix)
Silicon Dioxide (SiO2)
Pumice
Pumice (Vesicular intermediate to felsic volcanic glass)
Diorite
Diorite (an intrusive igneous rock)
Conglomerate
Conglomerate (clastic sedimentary rock)
Sandstone with Liesegang Rings
Quartzose Sandstone with Iron Oxide Precipitation
Quartz-rich rock, possibly milky quartz or quartzite fragment
Quartz (SiO₂), potentially quartzite if metamorphic
River Rocks and Pebbles
Mixed Silica-rich Sediments (SiO2 based)
Gravel (Crushed Stone Aggregates)
Mixed Siliciclastic / Carbonate Aggregate
Sandstone (Greywacke/Lithic Sandstone)
Clastic Sedimentary Rock (Lithic Sandstone)
Dragon Blood Jasper (also known as Dragon Stone)
Epidotized septarian concretion or Jasper/Epidote breach (typically a combination of Epidote and Pietersite or Red Jasper)
Unakite
Unakite Epidosite (composite of Epidote, Orthoclase, and Quartz)
Unakite
Epidotized Granite
Pyrite-bearing rock (likely pyrite-rich schist or massive pyrite)
Pyrite, FeS₂, possibly in a micaceous metamorphic matrix
Basalt Pebble
Basalt
Dragon Blood Jasper
Epidote with Red Jasper (SiO2 with Ca2(Al,Fe)3(SiO4)3(OH))
Conglomerate
Sedimentary Conglomerate
Soapstone (Steatite) and Quartz mix
Steatite (Mg3Si4O10(OH)2) and Quartz (SiO2)
Diorite
Intermediate Phaneritic Igneous Rock
Diorite (Salt and Pepper Rock)
Diorite
Granite
Granite (Felsic Plutonic Rock)
Diorite
Diorite (Intermediate intrusive igneous rock)
Diorite (River Pebble)
Phaneritic Intermediate Igneous Rock (Diorite)
Limestone Pebble
Sedimentary Rock (Calcite, CaCO3)
Granite Pebble
Granite (Plutonic Igneous Rock)
Sandstone (Greywacke/Lithic Sandstone)
Arenite (composed primarily of SiO2)
Serpentinite (often called Jade or Nephrite substitute)
Serpentinite (composed primarily of Antigorite, Lizardite, or Chrysotile)
Serpentine (Nephrite-like River Cobble)
Serpentinite (Hydrous Magnesium Iron Silicate)
Jasper and Agate Mix
Silicon dioxide (SiO2) - Microcrystalline Quartz
Quartz
Silicon Dioxide (SiO2)
Red Scoria
Vesicular Basalt (Fe – rich)