Mineral, Specifically A Cryptocrystalline Quartz Variety

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Chalcedony (specifically Agate or Water-worn Quartzite)

Silicon Dioxide (SiO2)

Druzy Quartz Geode (likely Smokey Quartz variety)

Silicon Dioxide (SiO2) - specifically a geode formation lined with druzy quartz crystals, with a likely brownish hue indicating smokey quartz.

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Tiger's Eye (and Hematite/Jasper Matrix)

SiO2 (Pseudomorph of Quartz after Crocidolite) with Hematite/Magnetite

Chert (Flint variety)

Microcrystalline Quartz (SiO2)

Chert (White Chert / Flint)

Microcrystalline or Cryptocrystalline Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Bumblebee Jasper

Fossiliferous Volcanic Rock (composed of Calcium Carbonate, Manganese Oxides, and Arsenic Sulfides)

Chert (often called Flint or Jasper)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (varieties include Flint and Jasper)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Quartzite (specifically an iron-stained or Carnelian-colored variety)

Silicon Dioxide (SiO2) with iron oxide inclusions

Chert (Green variety)

Microcrystalline Opaline/Quartz (SiO2)

Jasper (Petrified Wood variant)

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Quartz (specifically Milky or Iron-stained Quartz)

Silicon Dioxide (SiO2)

Ocean Jasper

Silicon Dioxide (SiO2) - Orbicular Jasper / Chalcedony

Tiger's Eye (commonly referred to as Blue/Gold Tiger's Eye)

Tiger's Eye is a variety of Chalcedony (cryptocrystalline quartz), SiO2, exhibiting chatoyancy. The blue variety is often called Hawk's Eye.

Pink Granite

Phaneritic Felsic Igneous Rock (Rich in K-Feldspar)

Chert (Flint)

Chert (Microcrystalline Quartz, SiO2)

Ocean Jasper

Orbicular Jasper (Silicon Dioxide with impurities like Hematite and Chlorite, SiO2)

Jasper

Silicon dioxide (SiO2)

Chert (often called Flint or River Rock)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Red Jasper

Silicon Dioxide (SiO2) with Hematite inclusions

Yellow Agate

Agate (Varietal form of Chalcedony/Quartz, SiO2)

Smoky Quartz

Smoky Quartz (Silicon Dioxide - SiO2)

Blue Lace Agate (Geode/Druzy variant)

Chalcedony (SiO2) with Quartz druzy

Chert (Jasper/Flint variety)

Microcrystalline quartz (SiO2)

Banded Chert

Microcrystalline Quartz (SiO2)

Agate Geode

Cryptocrystalline Quartz (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Yellow Jasper

Silicon Dioxide (SiO2) with Goethite/Iron oxide inclusions

K2 Jasper (K2 Granite)

Azulite in Granite (Quartz + Feldspar + Biotite + Azurite)

Chert (Jasper variety)

Silicon Dioxide (SiO2)

Jasper (Red and Tan Jasper)

Microcrystalline Quartz (SiO2) with iron oxide inclusions

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Chert (specifically Gray/Blue-Gray Chert)

Chert (SiO2)

Chert (Jasper/Flint variety)

Silicon Dioxide (SiO2)

Granite (Orthoclase rich)

Granite (composed primarily of Quartz and Potassium Feldspar KAlSi3O8)

Milky Quartz

Silicon Dioxide (SiO2)