Igneous Or Mineral

Quartz (Pink / Ferruginous)

Silicon Dioxide (SiO2)

Quartz pebble

Silicon dioxide (SiO2)

Tumbled sodalite

Sodalite, Na8(Al6Si6O24)Cl2, commonly occurring in nepheline-syenite rocks

Unakite Epidote-Granite

Unakite (Epidotized Granite)

Blue Quartz

Silicon Dioxide (SiO2) with inclusions

Epidote with quartz/feldspar

Epidote, Ca2(Al,Fe)3(SiO4)3(OH)

Gneiss

Gneiss

Granite

Intrusive Igneous Rock

Rose Quartz

Silicon Dioxide (SiO2) with trace amounts of titanium, iron, or manganese

Sodalite

Sodalite (Na8(Al6Si6O24)Cl2)

Dalmation Stone (Dalmation Jasper)

Peralkaline rock (primarily Feldspar and Quartz with Arfvedsonite spots)

Quartz Mineral

Silicon Dioxide (SiO2)

Milky Quartz

Quartz (Silicon Dioxide, SiO2)

Cloudy Quartz (Milky Quartz)

Silicon Dioxide (SiO2)

Milky Quartz

Silicon Dioxide (SiO2)

Prehnite

Ca2Al(AlSi3O10)(OH)2

Red granite (likely weathered granite or granitic gneiss)

Granite; chiefly quartz (SiO₂), feldspar, and mica, with iron-oxide staining

Iron-stained granitic or volcanic rock

Probable weathered granite/granodiorite with iron-oxide alteration; exact identification requires testing

Unidentified Dark Mineral or Rock

Indeterminate (Likely Silicon Dioxide or Carbon-based)

Clear Quartz (Faceted)

Silicon dioxide (SiO2)

Glacial Granite with Epidote

Granite featuring Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Epidote

Epidote (Ca2(Al2,Fe3+)(SiO4)(Si2O7)O(OH))

Blue Apatite

Ca5(PO4)3(F,Cl,OH)

Dalmatian Jasper

Peralkaline Feldspar Diorite/Rhyolite

Blue apatite (likely dyed or enhanced)

Apatite group; fluorapatite, Ca5(PO4)3F, is the common blue variety

Granite

Granite (Plutonic Igneous Rock)

Gneiss

Gneiss (Metamorphic Rock)

Granite

Intrusive Igneous Rock

Granite

Intrusive Igneous Rock

Granite

Intrusive Igneous Rock

Granite

Granite (Plutonic Igneous Rock)

Potassium Feldspar

Orthoclase (KAlSi3O8)

Blue Apatite

Apatite (Calcium Phosphate) - Ca5(PO4)3(F,Cl,OH)

Labradorite (in rough matrix)

Labradorite (Plagioclase Feldspar)

Quartz with Mica

SiO2 (Quartz) with Potassium aluminum silicate (Muscovite)

Quartz with Epidote

Silicon dioxide (SiO2) with Calcium aluminum iron silicate (Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH))

Pink Quartz

Silicon Dioxide (SiO2)

Porphyritic Igneous Rock / Granite or Rhyolite Porphyry

Porphyritic intrusive/extrusive igneous rock

Talc Schist / Soapstone

Talc (Mg3Si4O10(OH)2)

Rough amber-colored quartz or calcite fragment

Likely quartz (SiO₂) or calcite (CaCO₃); exact identification requires testing

Granite

Granite (Intrusive Igneous Rock)

Granite

Felsic intrusive igneous rock