Aragonite (variety 'Flos Ferri')
Aragonite (CaCO3)
Mineral
Category
Not A Geological Specimen
Browse not a geological specimen specimens identified by the Rock Identifier community.
Dalmatian Stone (Dalmatian Jasper)
Dalmatian Stone (A variety of Perthite / Aplite)
Igneous
Quartz (possibly milky quartz)
Quartz (Silica; SiO₂)
Mineral
Painted River Pebble (likely Basalt or Greywacke)
Aphanitic Lithic Clast with Anthropogenic Pigment coating
Sedimentary or Igneous
Cobaltoan Calcite / Pink Dolomite (Possible)
Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))
Mineral / Rock (depending on purity)
Bauxite (Laterite Clay)
Bauxite (mixture of Hydrous Aluminum Oxides: Gibbsite Al(OH)3, Boehmite and Diaspore AlO(OH))
sedimentary
Shale or Slate with Quartz Veins
Shale (fine-grained clastic sedimentary rock) or Slate (low-grade metamorphic rock formed from shale) with Quartz (SiO2) veins
Metamorphic, likely Sedimentary with Quartz veins
Basalt with Weathered Surface
Basalt
Igneous
Crushed Limestone
Calcium Carbonate (CaCO3)
Sedimentary
Lapis Lazuli (polished cabochon)
Lazurite-rich metamorphic rock (approx. Na6Ca2Al6Si6O24(SO4,S,Cl)2)
metamorphic
Quartz with Limonite Staining
Silicon Dioxide (SiO2) with Hydrated Iron Oxide (FeO(OH)·nH2O)
Mineral
Fluorite
Calcium Fluoride (CaF2)
mineral
Amber
Succinite (specifically for Baltic amber); approximate formula C10H16O
Mineraloid
Pyrite
Iron Pyrite (FeS2)
mineral
Dalmatian Stone
Dalmatian Jasper (Aplitic Rock)
igneous
Amber
Fossilized Tree Resin (Succinate)
mineral
Spinosaurus Tooth Fossil
Spinosaurus aegyptiacus (Calcium Phosphate/Apatite)
sedimentary
Quartz Vein in River Siltstone
Crystalline Quartz (SiO2) in Siliclastic Matrix
sedimentary
Fluorite (Purple/Blue variety)
Calcium Fluoride (CaF2)
mineral
Limonite (Ironstone)
Hydrous ferric oxides (FeO(OH)·nH2O)
mineral
Green Fluorite
Fluorite (Calcium Fluoride, CaF2)
mineral
Milky Quartz
Quartz (SiO₂)
Mineral
Bauxite
Bauxite (Mixture of Al(OH)3, AlO(OH), and Fe2O3)
sedimentary
Orange Calcite
Calcium Carbonate (CaCO3)
mineral
Bauxite
Bauxite (mixture of hydrous aluminum oxides: Al(OH)3 & AlO(OH))
sedimentary
Amber
Succinite (specifically Baltic Amber) - Formula: C10H16O (approximate)
Organic Mineraloid
Larvikite
Larvikite (Anorthoclase-rich Monzonite)
igneous
Obsidian
Obsidian (Volcanic Glass)
igneous
Fluorite (Rainbow/Purple Fluorite)
Calcium Fluoride (CaF2)
mineral
Amber
Succinite
Organic (Mineraloid)
Conglomerate
Conglomerate
Sedimentary
Dalmatian Stone (Dalmatian Jasper)
Peralkaline Quartz-Feldspar Rock with Arfvedsonite
igneous
Limonite (Iron Ore/Bog Iron)
Hydrated Iron(III) Oxide-Hydroxide (FeO(OH)·nH2O)
mineral
Bornite (Peacock Ore)
Bornite (Cu5FeS4)
mineral
Fluorite (Green)
Fluorite (Calcium Fluoride, CaF2)
mineral
Bauxite
Bauxite (mixture of Hydrous Aluminum Oxides)
sedimentary
Green Fluorite
Fluorite (Calcium Fluoride - CaF2)
mineral
Amber
Succinite
Organic (Mineraloid)
Limonite (Iron Ore)
Limonite (FeO(OH)·nH2O)
mineral
Bauxite (Concretionary)
Bauxite (Al(OH)3, AlO(OH))
sedimentary
Fluorite
Calcium Fluoride (CaF2)
mineral
Bumblebee Jasper
Fossiliferous Calcite containing Orpiment and Realgar
sedimentary