Organic (Geological Relative)

Sandstone

Arenite (a specific type of sandstone with less than 15% matrix)

Sedimentary rock

Green Calcite

Calcite (CaCO3)

Olivine (likely Peridot variety)

Olivine Mineral Group (specifically Forsterite-Fayalite solid solution series); Chemical formula: (Mg,Fe)2SiO4

Leopard Skin Jasper

Chalcedony (cryptocrystalline Quartz)

Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Unakite

Epidotized Granite

metamorphic

Halite

Halite (Sodium Chloride - NaCl)

Basalt

Basalt (dominated by plagioclase feldspar and pyroxene)

igneous

Halite

Halite (NaCl)

Unakite

Unakite (Epidote-Feldspar rock)

Metamorphic rock

Coal (most likely Bituminous or Anthracite)

Coal (primarily composed of carbon with varying amounts of other elements)

Sedimentary rock

Rose Quartz

Quartz (SiO₂), specifically a variety of Quartz

Chert (Limestone-based)

Silicon Dioxide (SiO2)

Gold

Aurum (Au)

Mineral (Metal)

Black Tourmaline

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

Chert / Jasper

Silicon Dioxide (SiO2)

Metamorphic Rock (specifically a rock composed of minerals)

Granite

Granite (High-silica plutonic rock)

igneous

Ruby in Zoisite

Ruby (Corundum, Al2O3) in Zoisite (Calcium aluminum silicate hydroxide, Ca2Al3(SiO4)3(OH)) with some Hornblende

Blue Tiger's Eye

Crocidolite (fibrous riebeckite) silicified to Quartz (SiO2)

Calcite

Calcium Carbonate (CaCO3)

Chert Pebble

Silicon dioxide (SiO2)

Mineral; variety of Quartz

Green Aventurine

Aventurine (Silicon dioxide, SiO₂)

Fluorite (often referred to casually as 'Fluorspar' in industrial contexts)

Fluorite (CaF2)

Pumice

Pumicite (fine-grained pumice), Scoria (similar origin but denser and darker, usually basaltic)

Igneous

Chert / Flint

Silicon dioxide (SiO2)

Sedimentary Rock (as a residual soil/rock, it's often considered a type of sedimentary rock due to its formation from weathering, though it can cross into soil science)

Quartzite

Quartzite (primarily SiO2)

metamorphic

Laterite

Laterite (primarily composed of hydrated oxides of iron and aluminum)

Botryoidal Chalcedony

Chalcedony (SiO2)

Serpentinite (Serpentine Rock)

Primarily composed of serpentine group minerals, such as antigorite, chrysotile, and lizardite. Chemical formula for serpentine minerals is (Mg,Fe)3Si2O5(OH)4.

Metamorphic

Lapis Lazuli

Lapis Lazuli (a rock, not a single mineral; primary mineral is Lazurite (Na,Ca)8(AlSiO4)6(S,SO4,Cl)1-2

Metamorphic rock

Black Tourmaline (Schorl)

Schorl (Na(Fe^2+)3Al6(Si6O18)(BO3)3)(OH)3(OH))

Goethite (likely as part of Limonite/Ironstone)

Goethite (α-FeOOH)

Mineral, often found as a rock

Serpentine

Serpentine Group Minerals (e.g., Antigorite, Chrysotile, Lizardite)

Himalayan Salt

Halite (mineral name), chemical formula NaCl (sodium chloride). Generally, 'Himalayan Salt' is a trade name for evaporite minerals from specific regions.