Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Category
Amorphous Solid
Browse amorphous solid specimens identified by the Rock Identifier community.
Learn about Amorphous Solid in the encyclopedia
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Quartz Veined Basalt
Mafic Volcanic Rock with Microcrystalline Quartz (SiO2)
igneous
Nephrite Jade (or Serpentine)
Nephrite (a variety of amphibole mineral tremolite-actinolite) or Serpentine Group minerals
Mineral/Rock
Granite Pebble
Intrusive Igneous Rock
igneous
Basalt (Vesicular)
Extrusive igneous rock with vesicular texture
igneous
Pumice (or Volcanic Tuff / Ash)
Pumice / Pyroclastic rock
igneous
Pumice
Pumice (Highly vesicular volcanic glass)
igneous
Jasper (or Chert)
Microcrystalline Quartz (SiO2)
sedimentary
Pumice
Vesicular volcanic glass (primarily SiO2)
igneous
Scoria
Vesicular Mafic Extrusive Igneous Rock
igneous
Granite
Intrusive Igneous Rock
igneous
Pink Granite
Phaneritic Plutonic Felsic Igneous Rock (Quartz, K-Feldspar, Plagioclase)
igneous
Pumice
Pumice (volcanic glass rock)
igneous
Vesicular Basalt (Scoria)
Vesicular Basalt
igneous
Vesicular Basalt with Magnetite/Hematite
Mafic Extrusive Igneous Rock (primarily Plagioclase and Pyroxene)
igneous
Vesicular Basalt
Extrusive mafic igneous rock
igneous
Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Septarian (Dragon Stone)
Septarian Concretion (SiO2 + CaCO3)
sedimentary
Scoria (Lava Rock)
Vesicular Basalt / Scoria
igneous
Vesicular Basalt
Basalt (Mafic Extrusive Igneous Rock)
igneous
Dalmation Stone (often called Dalmatian Jasper)
Antiperthite-rich Microgranite
igneous
Pumice
Pumice (Felsic volcanic rock)
igneous
Scoria
Scoria (Vesicular Basaltic Glass)
Igneous
Micrometeorite (Spherule)
Extraterrestrial Accretion Spherule
mineral
Yellow Jasper
Silicon Dioxide (SiO2) with iron inclusions
sedimentary
Vesicular Basalt
Basalt (with vesicular texture)
igneous
Banded Agate (often called Brown Agate or Chalcedony)
Silicon Dioxide (SiO2)
mineral
Red Jasper
Silicon Dioxide (SiO2) with Hematite inclusions
sedimentary
Vesicular Basalt
Aphanitic Mafic Volcanic Rock
igneous
Vesicular Basalt
Mafic Igneous Rock
igneous
Quartz Crystal (Citrine / Golden Quartz)
Silicon Dioxide (SiO2)
mineral
Aura Turquoise or Treated Turquoise Beads
Hydrated copper and aluminum phosphate (CuAl6(PO4)4(OH)8·4H2O) with metallic coating
gemstone
Mixed Gemstone and Mineral Collection
Silicon Dioxide (SiO2) based minerals and others
mineral
Mixed Quartz and River Pebbles (Stone Collection)
Mixed assortment containing mainly Silicon Dioxide (SiO2)
igneous, sedimentary, metamorphic, and mineral
Porphyritic Granite pebble (or Porphyry)
Porphyritic Plutonic Igneous Rock (Granite / Monzonite porphyry)
igneous
Granite with Epidote
Phaneritic intrusive igneous rock with Epidote (Ca2(Al2,Fe)(SiO4)(Si2O7)O(OH))
igneous
Moonstone
Orthoclase feldspar ((K,Na)AlSi3O8) with inclusions of Albite
gemstone
Rhodochrosite in Quartz
Manganese Carbonate (MnCO3)
mineral
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Lava Stone and Chakra Beads
Basalt (with various mineral/synthetic beads)
igneous
Rhodochrosite
Manganese carbonate (MnCO3)
mineral
Rhodochrosite
Manganese Carbonate (MnCO3)
mineral