Mineral In Metamorphic Rock

Black Sand (Magnetite Sand)

Magnetite-rich Placers (Fe3O4)

Schist

Mica Schist

Milky Quartz (with trace inclusions)

Silicon Dioxide (SiO2)

Schist

Mica Schist

Quartz with Chalcopyrite and Pyrite

Silicon Dioxide (SiO2) with Copper Iron Sulfide (CuFeS2)

Quartz

Silicon Dioxide (SiO2)

Muscovite Mica (Golden/Yellow variety)

KAl2(AlSi3O10)(F,OH)2

Ruby in Zoisite (Anyolite)

Anyolite (Combination of Corundum and Zoisite)

Dragon Blood Jasper (Epidote with Piedmontite or Quartz)

Epidote-rich Quartzite / SiO2 with (Ca2(Al2,Fe)(Si2O7)(SiO4)O(OH))

Clear Quartz (Rock Crystal)

Silicon Dioxide (SiO2)

Dragon Blood Jasper

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

Grey Agate

Silicon Dioxide (SiO2) - Variety of Chalcedony

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron oxide inclusions)

Tiger's Eye

Pseudomorph of Crocidolite (SiO2 with iron oxides)

Gemstone Sand (Mineral Assortment)

Mixed Mineral Concentrates (Commonly including Quartz SiO2, Garnet X3Y2(SiO4)3, and Tourmaline (Na,Ca)(Li,Mg,Al)3(Al,Fe,Mn)6(BO3)3(Si6O18)(OH,F)4)

Unakite or Epidosite

Epidosite (Mineral composition: Epidote, Feldspar, and Quartz)

Jade

There are two distinct minerals commonly known as Jade: Jadeite (NaAlSi2O6) and Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2). Based on the appearance, these spheres are likely Nephrite.

Milky Quartz (Common Quartz)

Quartz (Silicon Dioxide, SiO2)

Magnetite

Magnetite (Fe3O4)

Clear Quartz

Silicon Dioxide (SiO2)

Tiger's Eye

Pseudomorph of Quartz after Crocidolite (SiO2 with iron inclusions)

Garnet

Almandine formula: Fe3Al2(SiO4)3

Pink Feldspar

Orthoclase Feldspar (KAlSi3O8)

Quartzite (specifically Milky Quartz variety)

Quartz (SiO2)

Gneiss

Gneiss (High-grade metamorphic rock)

Biotite Schist with Garnet

Garnet-Biotite Schist

Aventurine

Quartzite with inclusions (SiO2 containing Fuchsite chrome mica)

Quartz Pebble

Silicon Dioxide (SiO2)

Schist

Mica Schist

Gneiss

Gneiss (High-grade regional metamorphic rock)

Biotite Mica

K(Mg,Fe2+)3(Al,Fe3+)Si3O10(OH,F)2

Schist

Mica Schist

Milky Quartz with Iron Inclusions

Silicon Dioxide (SiO2)

Clear Quartz

Silicon Dioxide (SiO2)

Quartzite with Chlorite/Epidote

Metamorphosed Quartzite (SiO2)

Banded Gneiss

Gneiss (High-grade regional metamorphic rock)

Tiger's Eye (Brown/Dark variety)

Pseudomorph of Quartz after Crocidolite (SiO2 with inclusions)

Mica Schist

Mica Schist (primarily Muscovite and Biotite composition)

Banded Gneiss (with possible weathered sulfide or iron staining)

Gneiss, potentially with iron oxide/hydroxide staining (e.g., limonite) or weathered sulfides

Corundum

Corundum (Aluminium oxide, Al2O3)

Banded Gneiss

Gneiss