Fossiliferous Limestone
Biogenic Limestone (CaCO3)
sedimentary
Category
Sedimentary (Biogenic Sediment Or Biological Remain)
Browse sedimentary (biogenic sediment or biological remain) specimens identified by the Rock Identifier community.
Learn about Sedimentary (Biogenic Sediment Or Biological Remain) in the encyclopedia
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Shungite
Fullerene-bearing carbonaceous rock
mineral
Amber
Succinite (approximate formula C10H16O)
mineraloid
Fossiliferous Limestone
Biogenic Sedimentary Rock
sedimentary
Stromatolite
Biogenic sedimentary rock
sedimentary
Fossiliferous Limestone (Coquina)
Biogenic Limestone (Calcium Carbonate, CaCO3)
sedimentary
Fossil coral fragment
Likely calcitic colonial coral, possibly fossilized scleractinian coral
fossil
Fossilized Brachiopod
Phylum Brachiopoda (replaced by Calcite/CaCO3)
sedimentary
Cleavable Calcite
Calcium Carbonate (CaCO3)
mineral
Brachiopod Fossil in Sedimentary Matrix
Phylum Brachiopoda in Siltstone/Mudstone matrix
fossil
Brachiopod Fossil
Phylum Brachiopoda (order potentially Spiriferida)
fossil
Petrified Wood
Silicified Wood (SiO2)
Mineral / Fossil
Banded Chert
Microcrystalline Quartz (SiO2)
sedimentary
Amber (Rough)
Amber (Fossilized Tree Resin, succinite)
mineral
Chert (Yellow Jasper / Flint)
Microcrystalline Quartz (SiO2)
sedimentary
Sea Bean (Hamburger Bean)
Mucuna sloanei
organic/biological specimen
Coquina / Fossiliferous Limestone
Fossiliferous Limestone / CaCO3
sedimentary
Chert / Flint Pebble
Cryptocrystalline Quartz (SiO2)
sedimentary
Fossil bivalve shell
Likely an extinct or modern-like ribbed cockle/scallop; exact genus requires locality and diagnostic hinge features
fossil
Mookaite Jasper
SiO2
Sedimentary
Amber
Succinite (with approximate formula C10H16O)
mineraloid
Amber
Succinurite (C10H16O)
mineraloid
Shungite
Shungite (Non-crystalline carbon, C)
mineral
Fossil Shark Tooth
Carcharhinidae or Lamniformes sp. (possibly Carcharodon or Otodus genus)
fossil
Chert (Jasper / Iron-stained Chert)
Microcrystalline Quartz (SiO2 with Fe-oxides)
sedimentary
Coquina
Biogenic Limestone
sedimentary
Fossiliferous Limestone (Coquina-like)
Biogenic Limestone
sedimentary
Amber
Succinite (fossilized resin)
mineral
Crinozoan fossil (Crinoid stem fragment)
Crinoid (Class Crinoidea)
fossil
Petrified Wood
Silicified Wood (primarily Quartz / Chalcedony: SiO2)
metamorphic
Amber
Succinite (organic fossilized resin)
mineraloid
Chert / Flint
Silicon Dioxide (SiO2) - Microcrystalline Quartz
sedimentary
Fossilized Shark Teeth
Carcharhiniformes or Lamniformes species (common mineral: Fluorapatite/Ca5(PO4)3F)
sedimentary (fossilized organic matter)
Fossiliferous Limestone / Fossil Fragment
Calcium Carbonate (CaCO3) with indeterminate biogenic remains
fossil
Limestone with Chert
Calcium Carbonate (CaCO3) with Silica (SiO2) inclusions
sedimentary
Chert (Jasper variation)
Microcrystalline Quartz (SiO2)
sedimentary
Coal
Biogenic sedimentary rock (Carbon)
sedimentary
Amber
Succinite (specifically for Baltic amber); Complex mixture of organic compounds (C10H16O)
Organic Mineraloid
Chert (Pebble)
Silicon Dioxide (SiO2)
sedimentary
Chert
Microcrystalline Quartz (SiO2)
sedimentary
Fossiliferous Limestone
Biogenic Sedimentary Rock (CaCO3)
sedimentary
Stromatolite
Biogenic sedimentary structure (Stromatolite)
fossil