Mineral Within A Sedimentary Rock

Granite

Plutonic Igneous Rock (composed typically of SiO2, Al2O3, K2O, Na2O, CaO)

Blue Apatite

Fluorapatite (Ca5(PO4)3F)

Clear Quartz Cluster

Silicon Dioxide (SiO2)

Porphyritic Andesite

Andesite (Intermediate Extrusive Volcanic Rock)

Fish Fossil in Limestone

Lycoptera (likely) in Micritic Limestone

Quartz with Iron Staining

Silicon Dioxide (SiO2) with Limonite/Hematite inclusions

Schist

Mica Schist

Pink Tourmaline (Rubellite)

Elbaite (Tourmaline group) - Na(Li,Al)3Al6(BO3)3Si6O18(OH)4

Baltic Amber (Butterscotch or Egg Yolk Variety)

Succinite (chemical formula: C10H16O)

Quartz Vein with Iron Staining

Silicon Dioxide (SiO2) with limonite/hematite staining

Petoskey Stone

Hexagonaria percarinata (Fossilized Rugose Coral)

Eudialyte in Matrix

Na15Ca6Fe3Zr3Si26O72(OH,Cl,H2O)3

Hag Stone

Perforated Sedimentary Rock

Crazy Lace Agate

Silicon Dioxide (SiO2) with impurities

Granite

Granite (compositionally: Quartz, Feldspar, Mica)

Chert (River Pebble)

Microcrystalline quartz (SiO2)

Chert

Chert (microcrystalline quartz, SiO2)

Quartz (Smoky/Milky Pebble)

Silicon Dioxide (SiO2)

Amygdaloidal Basalt

Amygdaloidal Basalt (Ca-rich Plagioclase, Pyroxene, and Olivine)

Green Apophyllite and Stilbite on Quartz Cluster

Apophyllite-(K) (KCa4(Si8O20)(F,OH)·8H2O), Stilbite-Ca (NaCa4(Si27Al9)O72·28H2O), Quartz (SiO2)

Chert (Chert Nodule with Cortex)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (or Flint)

Silicon dioxide (SiO2)

Garnet-Bearing Schist

Almandine Garnet Micaceous Schist

Quartz Geode

Silicon Dioxide (SiO2)

Sandstone

Arenite

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Turritella Agate

Silicified Elimia tenera Fossil (SiO2)

Chrysocolla in Jasper (Chryso-Jasper)

Cu2-xAlx(H2-xSi2O5)(OH)4·n H2O (Chrysocolla) + SiO2 (Jasper)

Granite

Granite (Felsic Plutonic Rock)

Larimar

Pectolite (Sodium Calcium Silicate Hydroxide) - (NaCa2(Si3O8)(OH))

Amethyst

SiO2 (Silicon Dioxide) - a variety of Quartz

Chert / Flint

Cryptocrystalline quartz (SiO2)

Schist with Quartz Vein

Mica Schist with Crystalline Quartz (SiO2)

Chert (Nodule)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Brecciated Jasper

Silicon Dioxide (SiO2) with Hematite impurities

Granite

Granite (Felsic Plutonic Rock)

Chert (Iron-stained)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Kyanite

Kyanite (Al2SiO5)

Quartz on Sandstone

Silicon Dioxide (SiO2) in Lithic Sandstone

Sandstone

Arenite (Sedimentary Rock)

Geode (Unopened)

Siliceous Geode (SiO2)

Silty Shale

Silty Shale (Fissile Sedimentary Rock)