Mineral Based Composite

Mica Schist

Mica Schist (primarily Muscovite and Biotite micas)

Citrine (Heat-Treated Amethyst)

Silicon Dioxide (SiO2)

Chalcedony (Botryoidal or Agate nodule)

Silicon Dioxide (SiO2)

Epidote

Epidote (Ca2(Al,Fe)3(SiO4)3(OH))

Iron-stained Quartz (with Limonite/Hematite)

Silicon Dioxide (SiO2) with Iron Oxide inclusions (FeO(OH) or Fe2O3)

Basalt

Basalt (Mafic Extrusive)

Dalmatian Stone

Dalmatian Jasper (Peralkaline Quartz-Feldspar Rock)

Mahogany Obsidian

Obsidian (Volcanic Glass with Hematite/Magnetite inclusions), SiO2

Sandstone (likely Graywacke or Lithic Sandstone)

Clastic Sedimentary Rock

Quartz Conglomerate

Quartz Conglomerate (clastic sedimentary rock)

Heliotrope (Bloodstone)

Cryptocrystalline Quartz (SiO2) with inclusions of Hematite (Fe2O3)

Lepidolite

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

Muscovite Mica

Muscovite - KAl2(AlSi3O10)(F,OH)2

Tree Agate

Silicon Dioxide (SiO2)

Muscovite Mica

Muscovite / KAl2(AlSi3O10)(OH)2

Fire Agate

Silicon Dioxide (SiO2) with layers of Limonite/Goethite

Fuchsite (Green Muscovite)

K(Al,Cr)2(AlSi3O10)(OH)2

Mica Schist

Mica Schist (predominantly Muscovite or Biotite sheet silicates)

Basalt

Basalt (Mafic Extrusive Igneous Rock)

Basalt with Plagioclase Microphenocrysts

Amygdaloidal or Porphyritic Basalt

Fossilized Coral (Petoskey-like or Favosites)

Anthozoa (Fossilized Coral)

Muscovite Mica

KAl2(AlSi3O10)(F,OH)2

Talc (Soapstone variety)

Talc (Hydrated magnesium silicate) - Mg3Si4O10(OH)2

Limonite (Iron Ore/Sandstone mixture)

Limonite (FeO(OH)·nH2O) often mixed with Goethite and sedimentary matrix

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 - Muscovite component)

Dragon Stone

Ohko Stone (Argillaceous sedimentary rock)

Basalt with Quartz Veins

Basalt (SiO2 range 45-52%)

Granite

Phaneritic Plutonic Igneous Rock (primarily composed of quartz, alkali feldspar, and plagioclase)

Fuchsite (Green Muscovite in Quartz)

Chromium-rich Muscovite (K(Al,Cr)2(AlSi3O10)(OH)2)

Mica Schist

Mica Schist (KAl2(AlSi3O10)(OH)2 in Matrix)

Muscovite Mica

Muscovite (Potassium Aluminum Silicate) - KAl2(AlSi3O10)(F,OH)2

Schist

Mica Schist

Pink Granite

Phaneritic Felsic Igneous Rock (Granite)

Bloodstone (Heliotrope)

Silicon Dioxide (SiO2) with inclusions of Hematite

Labradorite

Labradorite ((Ca, Na)(Al, Si)4O8)

Mystic Topaz

Aluminum silicate fluoride hydroxide with titanium coating (Al2SiO4(F,OH)2)

Blue Quartz with Dumortierite/Magnesio-riebeckite inclusions

Quartz (SiO2) containing Dumortierite (Al7(BO3)(SiO4)3O3)

Quartz Veined Rock (Likely Graywacke or Quartzite)

Silicon Dioxide (SiO2) veins in Metasedimentary matrix

Diorite

Phaneritic plutonic rock (dominated by plagioclase feldspar and hornblende)

Biotite Schist

Biotite Schist (predominantly K(Mg,Fe)3AlSi3O10(OH,F)2)

Chalcedony with Druzy Quartz Geode

Silicon Dioxide (SiO2)

Amygdaloidal Basalt

Amygdaloidal Basalt (Mafic volcanic rock)