Mineral Or Sedimentary Rock (With Mineral Inclusions)

Lapis Lazuli

(Na,Ca)8(AlSiO4)6(SO4,S,Cl)2 (Complex silicate rock)

Jasper and Basalt Pebble

Polymineralic lithic pebble

Banded Serpentine

Serpentine group (subgroup Lizardite or Antigorite) - Mg3Si2O5(OH)4

Gneiss

Banded quartz–feldspar–mica gneiss

Tumbled brecciated jasper

Microcrystalline quartz (SiO₂), commonly with iron-oxide and other mineral inclusions

Polished fossiliferous limestone

Bioclastic carbonate rock, primarily calcite (CaCO₃)

Pink halite (rock salt)

Halite (sodium chloride, NaCl)

Polished brecciated jasper

Jasper, a microcrystalline quartz variety (SiO₂), with iron-oxide staining and breccia fragments

Pink halite (rock salt)

Halite, sodium chloride (NaCl)

Dalmatian Stone

Dalmatian Stone (a variety of aplite)

White Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Gneiss (High-Grade Metamorphic Rock)

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

Vesicular Basalt with Xenocrysts

Mafic Igneous Plutonic/Extrusive Complex

Sandstone (Quartzose / Feldspathic Sandstone)

Arenite (SiO2 principal matrix)

Yellow Jasper

Silicon Dioxide (SiO2) with Iron Hydroxide inclusions

Blue Chalcedony

Silicon Dioxide (SiO2)

Banded calcite (likely honey/orange calcite)

Calcite, CaCO₃

Hematite cameo or hematine imitation

Hematite (Fe₂O₃); possibly synthetic hematine or black glass

Quartzite with inclusions

Metamorphic Rock (Mainly SiO2)

Quartz vein fragment

Quartz, silicon dioxide (SiO₂), likely milky to translucent quartz with iron-oxide or clay inclusions

Granite

Granite (Phaneritic igneous rock)

Tumbled red jasper

Jasper, an opaque microcrystalline variety of quartz (SiO₂), colored mainly by iron oxides

Small weathered pebble, possibly limestone

Indeterminate carbonate-rich rock; likely calcite-bearing limestone

Sandstone (Red)

Arenite (primarily Quartz, SiO2, with Iron Oxide cement)

Hag Stone

Perforated Sedimentary Rock (Typically Limestone or Sandstone)

Jasper with Agate Inclusions

Silicon Dioxide (SiO2) - variety of Quartz/Chert

Jasper-Agate Breccia

Silicon Dioxide (SiO2) with iron oxide inclusions

Sandstone

Arenite (composed primarily of SiO2)

Moss Agate

Chalcedony with inclusions

Red Jasper

Silicon Dioxide (SiO2) with iron oxide inclusions

Jasper

Silicon Dioxide (SiO2)

Red Sandstone

Arenite (predominantly SiO2 with Fe2O3)

Granite

Granite (Felsic Plutonic Rock)

Fossiliferous Chert (with Brachiopod or Mollusk fragments)

Silicon dioxide (SiO2) with Calcium Carbonate (CaCO3) inclusions

Tumbled green aventurine (likely)

Quartz, SiO₂, with green fuchsite mica inclusions

Sandstone with Bedding Planes

Arenite (Sedimentary rock composed primarily of sand-sized minerals)

Quartz with inclusions

Silicon Dioxide (SiO2)

Quartz in Greenstone

Metamorphic rock with quartz vein (SiO2 / mixed silicates)

Quartz geode (likely druzy quartz in chalcedony)

Quartz, SiO₂, with possible microcrystalline chalcedony host

Chalcedony (Agate)

Silicon Dioxide (SiO2)

Likely weathered limestone or marble fragment

Calcite-rich carbonate rock; likely limestone (CaCO₃), possibly recrystallized marble

Milky Quartz

Silicon Dioxide (SiO2)