Mineral, Specifically A Variety Of Quartz

Quartz with Iron Stains

Quartz (SiO2) with iron oxide/hydroxide staining

Moonstone

Adularia (Potassium Aluminum Silicate, KAlSi3O8)

Moonstone (specifically Cat's Eye or Gray Moonstone)

Orthoclase (Potassium Aluminum Silicate) with the formula (K,Na)AlSi3O8

Jasper (Iron-rich Chalcedony)

Jasper (Microcrystalline Silicon Dioxide, SiO2 plus iron oxide impurities)

Montana Moss Agate

Chalcedony (SiO2) with Manganese/Iron oxide inclusions

Jasper (Banded Jasper)

Silicon Dioxide (SiO2) with impurities

Blue Agate (likely dyed)

Silicon Dioxide (SiO2)

Amazonite

K(AlSi3O8) - Microcline variant

Bivalve Fossil (Internal Mold/Steinkern)

Class Bivalvia (Fossilized Mold)

Blue Banded Agate (Dyed)

Silicon Dioxide (SiO2) - Variety of Chalcedony

Green Calcite

Calcium Carbonate (CaCO3)

Jasper with Iron Inclusions

Silicon Dioxide (SiO2) with impure Iron Oxides

Rose Quartz

SiO2 (Silicon Dioxide)

Bloodstone (Heliotrope)

Chalcedony (SiO2) with inclusions of Iron Oxide or Red Jasper

Graphic Granite

Graphic Granite (variety of Pegmatite)

Chlorastrolite (Isle Royale Greenstone)

Chlorastrolite (Pumpellyite-(Mg,Al)), formula: Ca2(Mg,Fe)Al2(SiO4)(Si2O7)(OH)2∙H2O

Charoite

Charoite (Hydrated potassium sodium calcium barium strontium silicate hydroxyfluoride)

Ironstone Concretion (Moqui Marble)

Iron-oxide Concretion (Hydrated ferric oxide, Fe2O3·nH2O)

Green Calcite

Calcium Carbonate (CaCO3)

Orange Calcite (Carved as a Horned Skull)

Calcium Carbonate (CaCO3)

Yellow Quartz / Quartz Pebble

Silicon Dioxide (SiO2)

Moss Agate

Chalcedony (Silicon Dioxide / SiO2)

Que Sera Stone (Llanite)

Rhyolite containing blue quartz and feldspar

Carnelian

Carnelian (Silicon Dioxide: SiO2)

Chert (concretionary/nodular variant)

Microcrystalline Quartz (SiO2) with possible fossil or mineral inclusions

Chert (specifically Flint or Common Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Novaculite variant)

Chert (Microcrystalline Quartz, SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Jasper variant)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Black Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically Flint or Common Chert)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Chert (specifically White Chert or Flint)

Microcrystalline or Cryptocrystalline Quartz (SiO2)

Quartzite (specifically Pink or Red Quartzite)

Metamorphosed Quartz Sandstone (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Basalt River Stone

Basalt (Mafic volcanic rock, primarily Plagioclase and Pyroxene)

Mahogany Obsidian

Obsidian (Volcanic Glass) with Hematite or Magnetite inclusions, SiO2 (Silicon Dioxide)

Amazonite

Potassium Feldspar (KAlSi3O8), specifically Microcline

Jasper

Silicon Dioxide (SiO2) with impurities

Jasper with Quartz Veining

Silicon Dioxide (SiO2) - Microcrystalline Quartz

Jasper (likely a variety of Brecciated Jasper or a patterned variety)

Silicon dioxide (SiO2)

Amazonite

Amazonite (KAlSi3O8 – a variety of Microcline, a Potassium Feldspar)