Organic (If Resin) Or Synthetic (If Glass); Simulating Sedimentary Or Metamorphic (For Natural Stones)

Sandstone

Arenite (primarily Quartz, SiO2)

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide (SiO2) with iron oxide inclusions (Limonite/Hematite)

Quartzite (River Pebble)

Metamorphosed Quartz Sandstone (SiO2)

Quartzite (River Cobble)

Quartzite (SiO2)

Ferruginous Quartz (Iron-stained Quartz)

Silicon Dioxide with Iron Oxide (SiO2 + Fe2O3)

Diamond (Macled/Crystal fragment)

Carbon (C), isometric crystal system

Quartz Geode

Crystalline Silicon Dioxide (SiO2) within a nodule

Sandstone

Quartz Arenite (a common type of sandstone, given the appearance), Arkose, Greywacke (depending on mineralogy)

Quartzite

Quartzite (primarily Silicon Dioxide, SiO2)

Rose Quartz

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

Cobaltoan Calcite / Pink Dolomite (Possible)

Cobaltoan Calcite: (Ca,Co)CO3; Pink Dolomite (or Thulite): CaMg(CO3)2 or Mn-Dolomite / (Thulite: Mn2+3Al2(Si2O7)(SiO4)O(OH))

Rough Ruby

Corundum (Al2O3 with Chromium impurities)

Chert (vuggy/nodular)

Microcrystalline Quartz (SiO2)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Schist (specifically Mica Schist)

Mica Schist (primarily composed of Muscovite KAl2(AlSi3O10)(OH)2 and Biotite)

Jasper (with Agate/Chalcedony inclusions)

Silicon Dioxide (SiO2)

Red Garnet

Almandine Garnet (Fe3Al2(SiO4)3)

Rose Quartz

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

Quartzite

Quartzite (primarily SiO2)

Quartz (Rose/Milky variety)

Silicon Dioxide (SiO2)

Chalcedony or Chert/Jasper with secondary mineral staining

SiO2 (for chalcedony/quartz) with possible secondary copper minerals (e.g., CuSiO3·nH2O for chrysocolla, Cu2(CO3)(OH)2 for malachite) or iron oxides/hydroxides.

Hematite

Hematite (Fe2O3)

Cubic Zirconia (Man-made)

Cubic Zirconia (ZrO2) with Enamel and Metal Alloy

Sandstone (Ferruginous)

Arenite (primarily SiO2 with Fe2O3 staining)

Biotite Schist

Biotite Schist

Jasper River Stone

Silicon Dioxide with Iron Oxide impurities (SiO2 + Fe2O3)

Banded Calcite (often sold as 'Mexican Onyx' or 'Calcite Onyx')

Calcite (Calcium Carbonate, CaCO3)

Ferro-slag (Leland Blue/Slag Glass)

Anthropogenic Vitreous Silica (Industrial Slag)

Jasper Breccia

Brecciated Jasper (Silicon Dioxide with Iron Oxide inclusions, SiO2)

Amber and Citrine Quartz

Succinite (Amber) and Silicon Dioxide (SiO2 / Citrine)

Red Sandstone

Arenite (Ferruginous Sandstone)

Amethyst Quartz

Amethyst (SiO2 with Iron impurities)

Quartz (Massive Quartz or Quartzite)

Silicon Dioxide (SiO2)

Peach Moonstone

Potassium Aluminum Silicate (KAlSi3O8)

Quartzite with vugs/druzy quartz

Crystalline Silicon Dioxide (SiO2)

Mica Schist

Mica Schist (contains Muscovite/Biotite, Quartz)

Apatite

Apatite group mineral (e.g., Fluorapatite - Ca5(PO4)3F, Chlorapatite - Ca5(PO4)3Cl, Hydroxylapatite - Ca5(PO4)3(OH))

Chert (Jasper/Flint variety)

Microcrystalline Quartz (SiO2)

Quartzite (Beach Pebble)

Quartzite (composed primarily of SiO2)

Banded Calcite (often sold as 'Mexican Onyx' or 'Green Onyx')

Calcite (Calcium Carbonate, CaCO3)

Chert (Agatized/Chalcedony variety)

Microcrystalline Quartz (SiO2)

K2 Stone (or K2 Jasper)

Azurite-in-Granite (Potassium Feldspar, Quartz, Plagioclase, Muscovite, and Azurite)