Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite)
Calcium Fluoride (CaF2)
Category
Browse mineral (man enhanced) specimens identified by the Rock Identifier community.
Fluorite (often called Rainbow Fluorite or Purple-Green Fluorite)
Calcium Fluoride (CaF2)
Amygdaloidal Basalt
Amygdaloidal Basalt (Ca-rich Plagioclase, Pyroxene, and Olivine)
Greywacke
Dirty Sandstone (Lithic wacke)
Chlorite (Small Flakes/Sand)
Chlorite Group (Magnesium Iron Aluminum Silicate Hydroxide - (Mg,Fe)3(Si,Al)4O10(OH)2·(Mg,Fe)3(OH)6)
Limonite (Iron Stone/Goethite)
Limonite (mixture of hydrated iron oxides, primarily Goethite: α-FeO(OH))
Green Fluorite in Host Rock
Fluorite (Calcium Fluoride, CaF2)
Fluorite (Rainbow Fluorite)
Calcium Fluoride (CaF2)
Ferruginous Sandstone
Arenite with Iron-oxide cement (composed of Quartz and Limonite/Hematite)
Olivine (Peridot in gem form)
Magnesium Iron Silicate (Mg,Fe)2SiO4
Quartz (likely tumbled or naturally water-worn)
Quartz (SiO₂ - Silicon Dioxide)
Amygdaloidal Basalt
Basalt with secondary mineral infilling (commonly Zeolite, Calcite, or Quartz)
Lapis Lazuli
Lapis Lazuli (a rock type, not a single mineral; main component is Lazurite (Na,Ca)8[(S,Cl,SO4,OH)2|(Al6Si6O24)])
Fluorite
Calcium Fluoride (CaF2)
Rose Quartz
SiO2 (Silicon Dioxide)
Green Fluorite
Calcium Fluoride (CaF2)
Fluorite (Purple variety)
Calcium Fluoride (CaF2)
Quartz Pebble (Chert/Chalcedony)
Silicon Dioxide (SiO2)
Quartzite
Quartzite (primarily SiO2)
Schist
Schist (various mineralogical compositions including mica, chlorite, talc, etc.)
Soapstone
Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)
Blue Apatite
Fluorapatite (Ca5(PO4)3F)
Red Jasper
Silicon Dioxide (SiO2) with Iron impurities
Cobaltian Calcite (Cobaltoan Calcite)
Cobalt-bearing Calcite (Ca,Co)CO3
Green Fluorite (Beaded)
Fluorite (Calcium Fluoride, CaF2)
Orange Calcite
Calcium Carbonate (CaCO3)
Red Jasper
Red Jasper (variety of Chalcedony, SiO₂)
Vesicular Basalt
Vesicular Basalt (Aphanitic Mafic Igneous Rock)
Banded Gneiss
Gneiss (High-grade Regional Metamorphic Rock)
Citrine Quartz
Citrine (Silicon Dioxide - SiO2)
Fluorite
Calcium Fluoride (CaF2)
Milky Quartz
Silicon Dioxide (SiO2)
Amygdaloidal Basalt
Amygdaloidal Basalt (Mafic volcanic rock)
Green Calcite
Calcite (CaCO3)
Milky Quartz
Silicon Dioxide (SiO2)
Quartz
Silicon Dioxide (SiO2)
Milky Quartz
Silicon Dioxide (SiO2)
Fluorite
Calcium Fluoride (CaF2)
Fluorite
Calcium Fluoride (CaF2)
Green Fluorite
Calcium Fluoride (CaF2)
Amber
Succinite (with a generalized formula of C10H16O)
Zebra Jasper
Jasper (variety of Quartz/Chalcedony), SiO2
Limonitic Iron Ore / Goethite
Hydrated Iron(III) oxide-hydroxide (primarily FeO(OH)·nH2O)