Agate (Chalcedony)
red-banded agate that is also known as sard or sardonyx
Alexandrite (Chrysoberyl)
faceted alexandrite displaying the color change effect
Amber (Amber)
amber specimen
unpolished amber with insect
another specimen of amber containing an insect
amber fluorescence
Amethyst (Quartz)
amethyst crystals
rough specimen
amethyst geode
Ametrine (Quartz)
faceted ametrine
Apatite (Apatite)
apatite crystals
Aquamarine (Beryl)
faceted aquamarine
Aventurine (Chalcedony)
polished aventurine nugget
Azurite
azurite crystals
azurite geode
Benitoite (Benitoite)
benitoite crystals in their matrix
Beryl (Beryl)
electron micrograph of hexagonal beryl crystal
Bloodstone (Chalcedony)
polished bloodstone nugget
Carnelian (Chalcedony)
carnelian specimen
Chalcedony
Chrome Diopside (Diopside)
Chrysoberyl (Chrysoberyl)
faceted chrysoberyl
cymophane or catseye chrysoberyl
Chrysoprase (Chalcedony)
Chrysocolla
polished chrysocolla nugget
Citrine (Quartz)
faceted citrine
Diamond (Diamond)
rough octohedral diamond crystal
cut diamonds
Emerald (Beryl)
858-carat Galacha Emerald
uncut emerald crystal
uncut Colombian emerald crystals
Fluorite
blue fluorite crystals
reddish-orange fluorite crystals
Garnet (Almandine, Andratite, Grossularite, Pyrope, Spessartine, Uvarovite)
garnet crystals with quartz
faceted garnet
Heliodore (Beryl)
heliodore crystal
Heliotrope (Chalcedony)
polished heliotrope
Hematite
rough hematite specimen
Hessonite (Grossularite)
Hiddenite (Spodumene)
hiddenite from Hiddenite, NC
Iolite (Cordierite)
faceted iolite
Jade (Jadeite or Nephrite)
Jasper (Chalcedony)
polished orbicular jasper
Kunzite (Spodumene)
Kyanite
kyanite crystals
Labradorite
Lapis Lazuli (Lazurite)
Malachite (Malachite)
polished malachite nugget
Moonstone (Albite, Microcline Feldspar, Orthoclase, Plagioclase)
Morganite (Beryl)
uncut morganite crystal
Onyx (Chalcedony)
Opal (Opal)
rough opal from Nevada
massive opal from Queensland, Australia
polished Australian opal
veins of opal in iron-rich rock
Pearl
black pearl and the mollusk shell
round white pearls
Peridot (Olivine)
rough peridot
Quartz (Quartz)
quartz crystals
smoky quartz crystals
Rhodochrosite (Rhodochrosite)
Rhodolite (Almandine-Pyrope Garnet)
Rock Crystal (Quartz)
quartz crystals
Rose Quartz (Quartz)
rough rose quartz
Ruby (Corundum)
faceted ruby
rough ruby
Sapphire (Corundum)
faceted sapphire with diamonds
star sapphire
Star of India
Sard (Chalcedony)
red-banded agate that is also known as sard or sardonyx
Sardonyx
red-banded agate that is also known as sard or sardonyx
Sinhalite (Sinhalite)
Sodalite (Sodalite)
rough sodalite specimen
Spinel (Spinel)
spinel crystals
Sugilite (Sugilite)
polished sugilite nugget
Sunstone (Oligoclase Feldspar)
polished sunstone nugget
Tanzanite (Zoisite)
faceted tanzanite
Titanite (Sphene)
Topaz (Topaz)
topaz crystals
red topaz crystal
colorless topaz crystal point
Tourmaline (Tourmaline)
tri-color tourmaline crystals with quartz
Emerald Cut Green Tourmaline
Tsavorite (Grossularite)
Turquoise (Turquoise)
polished turquoise nugget
Zircon (Zircon)
