Leopard skin jasper I
Leopard skin jasper close
Leopard skin jasper II
Dendrites in agate
Moss agate
Carnelian
Brecciated jasper
Red leopard jasper rock
Concentric banding in agate
Tiger eye, polished surface
Tiger eye, thin section micrograph
Tiger eye, light micrograph
Leopardskin jasper stone
Aventurine
Yellow crystal
Fire Opal
Agate
Chalcedony
Emerald
Prehnite and okenite
Cut Watermelon Tourmaline gemstone
Rare bright green Uvarovite Garnet
Yellow-green Tourmaline rough
Trillion cut tourmaline gemstone
Cut green Paraiba Tourmaline gemstone
Amethyst crystals
Uncut emeralds
Cut Quartz gemstone
Citrine
Smoky quartz
blue apatite
Quartz coated with silica
Raw garnet crystal
Garnet
Tourmaline crystal, thin section
Black tourmaline, SEM
Lapis lazuli, SEM
Tourmaline
Barred olivine chondrule
Almandine
Tourmaline on quartz
Cut Cordierite (Iolite) gemstone
Cut Kyanite gemstone
Cut Pyrope gemstone
Cut Scapolite gemstone
Rough pinkish-red Rubellite
Gneiss with garnet, light micrograph
Gneiss with garnet
Tourmaline unworked stones
Cut green Tourmaline gemstone
Jasper
瑪瑙
Cut Diopside gemstone
Calcite crystal
Calcite
Spotted Jasper stone
Red jasper mineral
Polished sphere of ocean jasper
Rhodonite
Tourmaline cross section
Cut pink topaz gemstone
Cut pink Topaz gemstone
Oval polished green Chrysoprase
Oval polished Onyx
Cut Scapolite round gemstone
Agate surface
Agate thunderegg
Agate stone cross section and patterns
Flame agate stone pattern
Agate stone patterns
Three calcite crystals
Twinned augite crystals
Ruby in zoisite
Zircon crystals on host rock
Cut yellow Vesuvianite gemstone
Round cut red Andesine
Cut Zircon gemstone
Rose Quartz
Cut Indicolite gemstone
Assortment of Gemstones
leopard skin
Apophyllite crystals
Basalt, light micrograph
Opal cabochons
Hyalite
Malachite and chrysocolla minerals
Banded calcite \Onyx\" II"
Jasper.
Fortification agate
Lapis lazuli crystals I
Lapis lazuli crystals II
Yellow Jasper
Steatite (soapstone)
Feldspar and quartz
Polished carnelian stone
Cabuchon gemstones of jasper
Egyptian jasper stone
Jasper polished stone
Brecciated Jasper stone
Jasper, polarised light micrograph
Agate, artificially coloured
Agate slice
Polished Esterel rhyolite agate
Sard Onyx layered Agate
Brecciated Agate stone
Star sapphire stone
Dyed agate slice
Green calcite crystal
Celestite crystals
Agate, variety of mineral quartz
A polished sample of agate
Polished slice of agate
Cut and polished piece of bloodstone
Cross section of blue agate, a type of chalcedony
Coloured slices of agate
Slice of agate, a form of quartz
Slice of agate, a chalcedony form of quartz
Polished agates
Banded texture in agate
Cut Spessartine gemstone
Pallasite meteorite fragment
Dendritic precipitation in an agate
Cross-section slice of Brazilian agate
Carnelia
Picture Jasper
Orbicular jasper
Automated diamond cutting
Sample of muscovite
Scolecite
Azurite on Chrysocolla substrate
Stilbite crystal group
Axinite
Chrysocolla mineral
Beryl crystals
Moss Agate Crystal Healing Stone
Close-up of Chrysoprase, Newfane, Vermont
Bloodstone
Bloodstone specimen
Blue lace agate
Chrysoprase
メノウ
Sample of feldspar
Lizardite in serpentine rock
Enstatite
Rutile quartz
Carnelian.
緑玉髄 クリソプレーズ
Citrine crystal group