Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary
Category
Not A Rock
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Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic
Black Marble
Recrystallized Carbonate Rock (CaCO3)
metamorphic
Granite
Granite (Felsic Plutonic Rock)
igneous
Diorite (River Cobble)
Intermediate plutonic igneous rock
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Marble
Recrystallized Calcite Rock (CaCO3)
metamorphic
Granite Pebble
Phaneritic Felsic Igneous Rock
igneous
Pink Granite
Granite (Phaneritic igneous rock)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Amygdaloidal Rhyolite
Amygdaloidal felsic extrusive rock
igneous
Granite
Intrusive igneous rock (Acidic)
igneous
Coal (most likely Bituminous or Anthracite)
Coal (organic sedimentary rock)
Sedimentary
Biotite Granite
Phaneritic Felsic Igneous Rock
igneous
Diorite
Intermediate plutonic igneous rock
igneous
Siltstone
Siltstone (Clastic Sedimentary Rock)
sedimentary
Pumice
Pumice (Vitreous volcanic rock)
igneous
Sandstone (Greywacke)
Arenite / Clastic Sedimentary Rock
sedimentary
Pink Granite
Phaneritic Felsic Igneous Rock
igneous
Polished Basalt
Basalt (Mafic volcanic rock)
Igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Jasper-Quartz Conglomerate / Chert
Siliceous Sedimentary Rock (SiO2)
sedimentary
Slate
Low-grade Metamorphic Rock
metamorphic
Pink Granite
Felsic intrusive igneous rock
igneous
Red Granite
Granite (Felsic Plutonic Rock)
igneous
Sandstone or Mudstone
Sedimentary Rock (Sandstone/Mudstone)
sedimentary
Diorite
Phaneritic intermediate plutonic rock
igneous
Greenstone
Metabasalt / Greenschist facies rock
Metamorphic
Granite
Phaneritic Felsic Igneous Rock
igneous
Basalt
Basalt (Mafic Volcanic Rock)
igneous
Granite
Phaneritic Plutonic Felsic Rock
igneous
Granite (Phaneritic)
Granite (Plutonic Igneous Rock)
igneous
Basalt
Basalt (Mafic volcanic rock)
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Granite
Phaneritic Felsic Igneous Rock
igneous
Gabbro (River Cobble)
Gabbro (mafic intrusive rock)
igneous
Granite Pebble
Felsic intrusive igneous rock
igneous
Gabbro
Phaneritic Basic Igneous Rock
igneous
Granite
Granite (Felsic Plutonic Rock)
igneous
Conglomerate
Conglomerate (clastic sedimentary rock)
sedimentary