Metamorphic (Man Made)

Small metallic-gold mineral fragment, possibly pyrite

Pyrite (FeS₂), if confirmed

Milky quartz

Quartz (silicon dioxide, SiO₂)

Banded Gneiss

Gneiss (Foliated Metamorphic Rock)

Slate

Slate (Foliated Metamorphic Rock)

Tumbled aqua glassy mineral specimen, likely chrysocolla or turquoise imitation

Uncertain from image; possible chrysocolla (hydrated copper aluminosilicate, variable composition) or dyed/man-made glass

Tumbled chalcedony (likely milky quartz)

Microcrystalline quartz, SiO₂; possibly pale agate or quartzite

Goldstone

N/A (Synthetic Glass with Copper Inclusions)

Blue tumbled glass-like specimen; likely blue slag glass

Likely man-made glass (silicate glass), not a natural mineral; exact material cannot be confirmed from the image

Quartzite

Metamorphic Quartzite (SiO2)

Quartzite

Quartzite (Metamorphosed Sandstone)

Red Quartzite

Quartzite (SiO2)

Flaked stone projectile point

Likely worked chert or fine-grained silicified shale; exact lithology cannot be confirmed from the image

Tumbled epidote-bearing rock (likely epidote–quartz–feldspar aggregate)

Epidote-rich metamorphic rock; minerals likely epidote (Ca₂(Al,Fe)₃Si₃O₁₂(OH), quartz, feldspar, and dark amphibole/biotite)

Conglomeratic concrete or asphalt aggregate surface with dark bituminous chunks

Polymictic gravel aggregate; dark pieces likely bitumen/asphalt, not a natural rock

Moonstone (specifically Rainbow Moonstone / White Labradorite)

White Labradorite (Feldspar Group: (Na,Ca)(Al,Si)4O8)

Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Pearl and Garnet Glass

Calcium Carbonate (CaCO3) for pearl; Silicon Dioxide (SiO2) for glass

Luminous Stone (Glow-in-the-dark Synthetic/Man-made Stone)

Strontium Aluminate tinted glass or resin (Crystalline silicate/oxide mix)

White Marble

Metamorphic Limestone (CaCO3)

Green Quartzite

Metamorphic Quartzite (often colored by chromium-bearing minerals or fuchsite)

Slate

Foliated Metamorphic Slate

Quartzite

Metamorphic Quartzite (SiO2)

Pink Marble

Recrystallized Limestone (Calcium Carbonate, CaCO3)

Aventurine

Aventurine Quartz (SiO2 with inclusions of Fuchsite)

Blue faceted gemstone, likely synthetic sapphire or blue glass

Corundum (Al₂O₃) if sapphire; identity cannot be confirmed visually

White Marble

Recrystallized Calcite Rock (CaCO3)

Quartzite

Quartzite (Metamorphic Quartz Sandstone)

Dark gneiss or migmatitic amphibolite

Band ed gneiss; composition likely quartz–feldspar–biotite/amphibole, possibly migmatite

Malaysian 50 Sen Coin

Coinage (specific alloy unknown without metallurgical analysis, but typically brass or bronze for this denomination and era)

Quartzite

Metamorphic Quartzite (SiO2)

Corundum (Sapphire variant)

Aluminium oxide (Al2O3)

Probable amber fragment

Amber (fossilized plant resin; chiefly amorphous organic resin, commonly dominated by succinite)

Likely tumbled epidote-bearing rock or green jasper

Epidote-group silicate, possibly in a jasper or serpentinite matrix

Banded calcite (likely polished limestone/marble fragment)

Calcite, CaCO₃; probable banded calcitic marble

Marble

Recrystallized Calcite (CaCO3)

Green Aventurine

Silicon Dioxide (SiO2) with inclusions of Fuchsite

Diorite (Gneissic)

Diorite

Smoky Quartz

Silicon Dioxide (SiO2)

Polished smoky quartz crystal point

Quartz (SiO₂), likely iron-colored or smoky quartz with milky inclusions

Quartzite pebble

Quartzite (SiO2)

Polished greenstone pebble

Likely nephrite jade (tremolite–actinolite), though serpentine or greenstone is possible from appearance alone

Tumbled greenstone, likely nephrite jade

Nephrite jade (interlocking tremolite–actinolite amphibole; Ca₂(Mg,Fe)₅Si₈O₂₂(OH)₂)