Man Made Glass (Often Grouped With Minerals In Lapidary)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Blue Apatite

Chlorapatite / Fluorapatite (Ca5(PO4)3(F,Cl,OH))

Unakite

Epidotized Granite

Obsidian

Obsidian (Volcanic Glass, SiO2 + impurity)

Quartzite with Hematite staining

Quartzite (SiO2) with iron oxide inclusions

Milky Quartz

Silicon Dioxide (SiO2)

Dendritic Agate

Silicon Dioxide with Manganese/Iron oxide inclusions (SiO2)

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Red Jasper

Silicon Dioxide (SiO2)

Marble

Marble (metamorphosed limestone/dolostone). Predominantly composed of Calcite (CaCO3) for marble derived from limestone, or Dolomite (CaMg(CO3)2) for marble derived from dolostone.

Granitic Pegmatite (with Pink Feldspar and Quartz)

Pegmatite (KAlSi3O8 + SiO2)

Green Calcite

Calcium Carbonate (CaCO3)

Chert (Jasper/Chalcedony)

Microcrystalline Quartz (SiO2)

Chert (Flint)

Microcrystalline Quartz (SiO2)

Green Aventurine

Silicon dioxide (SiO2) with Fuchsite inclusions

Smoky Quartz

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide - SiO2)

Ferruginous Quartz

Silicon Dioxide (SiO2) with Iron Oxide (Fe2O3) inclusions

Moss Agate

Chalcedony (Silicon Dioxide, SiO2) with inclusions

Green Aventurine (Green Quartzite)

Silicon Dioxide (SiO2) with inclusions of Fuchsite mica

Quartzite (with Iron Staining)

Metamorphosed Quartz Sandstone (SiO2)

Amygdaloidal Basalt

Amygdaloidal Basalt containing Zeolite or Quartz (SiO2/Silicates)

Aventurine

Quartz (Aventurine variety)

Lepidolite

K(Li,Al)3(Al,Si,Rb)4O10(F,OH)2

Fuchsite

Fuchsite (a variety of Muscovite mica, K(Al,Cr)2(AlSi3O10)(OH)2)

Common Opal

Hydrated silica (SiO2 " nH2O)

Jasper

Silicon dioxide, SiO2

Tree Agate

Silicon Dioxide (SiO2) with Chlorite/Manganese inclusions

Quartz Vein in Host Rock

Quartz (SiO2) in metamorphic host rock (likely schist or phyllite)

Quartzite

Quartzite (primarily SiO2)

Potassium Feldspar (Orthoclase)

KAlSi3O8 (Potassium Aluminum Silicate)

Banded Agate

Agate (Cryptocrystalline variety of Silica, SiO2)

Mixed Gemstone Beaded Jewelry

Various minerals (e.g., Quartz varieties like Rose Quartz, Amethyst; Peridot; Garnet; etc.)

Dragon Blood Jasper

Epidote-containing Quartz Chalcedony (SiO2 with Ca2(Al, Fe)3(SiO4)3(OH))

Rose Quartz

Silicon dioxide (SiO2) with trace titanium, manganese, or iron

Quartzite with Hematite staining

Metamorphosed Quartz Sandstone (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Bull Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Quartz Geode

Crystalline Silicon Dioxide (SiO2) within a nodule

Chert (Flint variety)

Microcrystalline or cryptocrystalline Quartz (SiO2)

Fluorite (specifically Rainbow Fluorite or Purple Fluorite)

Calcium Fluoride (CaF2)

Chert (Nodule)

Silicon Dioxide (SiO2)