Metamorphic Or Igneous

Nuummite

Nuummite (Orthoamphibole rock composed of Anthophyllite and Gedrite)

Gneiss (Schistose)

Gneiss

Gneiss

Gneiss

Greenstone

Greenschist (containing chlorite, epidote, and actinolite)

Gneiss

Gneiss

Banded Gneiss

Gneiss (High-grade metamorphic rock typically composed of Quartz, Feldspar, and Biotite/Amphiboles)

Quartz in Matrix (possibly with Biotite or Hornblende)

Quartz (Silicon Dioxide, SiO2) in Granitic Matrix

Mica Group Minerals

There isn't a single scientific name as 'Mica' refers to a group of phyllosilicate minerals. Common scientific names include Muscovite (KAl₂ (AlSi₃O₁₀)(OH)₂), Biotite (K(Mg,Fe)₃AlSi₃O₁₀(OH)₂), Phlogopite (KMg₃AlSi₃O₁₀(OH)₂), and Lepidolite (K(Li,Al)₃(Al,Si,Rb)₄O₁₀(F,OH)₂).

Basalt (Porphyritic)

Basalt (Mafic Extrusive Igneous Rock)

Yellow Quartz (Citrine/Yellow Chalcedony)

Silicon Dioxide (SiO2)

Gneiss

Gneiss (High-grade regional metamorphic rock)

Biotite (Mica)

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

Black Tourmaline (Schorl)

Schorl (Na(Fe²⁺)₃Al₆(BO₃)₃Si₆O₁₈(OH)₄)

Gneiss

Gneiss

Gneiss (specifically a Banded Gneiss cobble)

Gneiss (composed mainly of Quartz, Feldspar, and Biotite/Amphibole)

Nephrite Jade

Nephrite (Ca2(Mg,Fe)5Si8O22(OH)2)

Banded Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Gneiss

Gneiss (High-grade Regional Metamorphic Rock)

Feldspathic Gneiss

Feldspathic Gneiss (High-grade regional metamorphic rock)

Quartz (likely Rose Quartz or Milky Quartz based on color)

Quartz (SiO2 - Silicon Dioxide)

Soapstone

Steatite (composed primarily of Talc: Mg3Si4O10(OH)2)

Amazonite

Amazonite (KAlSi3O8) - a variety of Microcline Feldspar

Greenstone

Greenschist (primarily composed of chlorite, actinolite, and epidote)

Gneiss (specifically a Granitic Gneiss)

Gneiss (typically composed of Quartz, Feldspar, and Mica/Amphiboles)

Gneiss Pebble

Gneiss

Blue Quartz (Dyed)

Silicon Dioxide (SiO2) with artificial pigment

Quartz Pebble

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Citrine Quartz

Crystalline Quartz (SiO2) with iron impurities

Sunstone

Plagioclase Feldspar (specifically Oligoclase variety with hematite or goethite inclusions) Chemical Formula: (Ca,Na)(Al,Si)2Si2O8

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Blue Apatite

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

Peacock Ore

Bornite (Cu5FeS4) or Chalcopyrite treated with acid

Smoky Quartz

Silicon Dioxide (SiO2) with aluminum impurities

Amethyst

Amethyst (Silicon Dioxide - SiO2)

Quartz Pebble

Quartz (Silicon Dioxide, SiO2)

Quartz Pebble

Silicon Dioxide (SiO2)

Sapphire (Raw/Rough)

Corundum (Al2O3)

Yellow Apatite Sphere (Polished)

Fluorapatite / Ca5(PO4)3F

Moonstone

Orthoclase Feldspar (KAlSi3O8)

Rough Corundum (likely Sapphire/Zircon-bearing)

Aluminium Oxide (Al2O3)

Orthoclase Feldspar

Orthoclase (KAlSi3O8)