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Gemstones

100+ Gemsgem photos 100+ Gems - Photos of over 100 beautiful gems ranging from the popular to the obscure. All About DiamondsDiamond Diamond A collection of photos, articles, facts, maps and graphs about diamonds. AmethystAmethyst Amethyst - the most popular purple gem. It has a beautiful color and reasonable price. Opal PhotosOpal Pictures of Opal A collection of different types of opal from all around the world and Mars too!
Emeraldemerald Emerald is the most popular green gemstone in the United States and most of the world. Ruby and SapphireRuby and Sapphire Ruby and Sapphire are the 2nd and 3rd most popular colored stones in the United States. LabradoriteLabradorite Labradorite is a feldspar gem that can produce bright flashes of iridescent color. TurquoiseTurquoise Turquoise A blue to bluish- green gem material that has been used for over 6000 years.
Blue Gemstonesblue gemstones Blue Gemstones - Most people shopping for a colored stone are looking for something blue. Green GemstonesGreen Gemstones Green Gemstones - emerald, peridot, jade, tsavorite, chrome diopside, chrysoprase, more. Tanzanitetanzanite Tanzanite was unknown until a few decades ago but it has erupted into wide popularity. Blood DiamondsBlood Diamonds Blood Diamonds Illegally-traded diamonds that may have been stolen or used to fund conflict.
Tumbled StonesTumbled Stones Tumbled Stones are rocks that have been rounded, smoothed and polished in a rock tumbler. PeridotPeridot Peridot is the gem variety of olivine. Derived from the mantle and rarely from meteorites. TopazTopaz Topaz is a popular birthstone and the #8 mineral in the Mohs Hardness Scale. Ruby and SapphireRuby and Sapphire Ruby & Sapphire are gem corundums - ruby when red, sapphire when other colors.
AmmoliteAmmolite Ammolite is a fossil and a gemstone. It is shell material from fossil ammonites. SunstoneSunstone Sunstone A feldspar with aventurescence caused by tiny copper inclusions. U.S. GemstonesU.S. Gemstones United States Gemstones Small mines in the U.S. produce a diversity of gemstones. Ant Hill GarnetsAnt Hill Garnets Ant Hill Garnets - tiny gems that ants haul to the surface and discard on their anthill. Honest!
What Is Jade?Jade Jade has been used as a gemstone and a tool-making material for for 1000s of years. Strontium Titanatestrontium titanate Strontium Titanate - lab created diamond simulant with fire much stronger than diamond. TourmalineTourmaline Tourmaline - the most colorful mineral and natural gem material on Earth. Lapis Lazulilapis lazuli Lapis Lazuli - a metamorphic rock and the most popular blue opaque gemstone in history.
ZirconZircon Zircon is a popular and colorful gem with fire and brightness that rivals diamond. Ethiopian OpalEthiopian opal Ethiopian Opal - The new opal heavyweight that might give Australia a run. GarnetGarnet Garnet is best known as a red gemstone. It occurs in any color and has many industrial uses. Gem SilicaGem Silica Gem Silica is a blue chalcedony colored by copper. It is the rarest and most valuable chalcedony.
MalachiteMalachite Malachite has served as a gem material, pigment and ore of copper for thousands of years. GeodesGeodes Geodes look like ordinary rocks on the outside but can be spectacular inside! AventurineAventurine Aventurine - a translucent quartz with reflective inclusions that cause aventurescence. Rose QuartzRose Quartz Rose Quartz is the name used for specimens of translucent quartz with a pink color.
Star GarnetStar Garnet Star Garnets are found in only a few locations worldwide. They are the state gems of Idaho. Jetjet Jet is a black organic gem material that forms from well-preserved woody material. Bloodstonebloodstone Bloodstone is a dark green jasper with a splatter of red color that looks like blood. Organic GemsOrganic Gems Organic Gems are gems formed from plant or animal materials.
Fire OpalFire Opal Fire Opal is a transparent to translucent opal with a yellow, orange or red background color. Gemstone BookGemstones of the World Gemstones of the World : A book by Robert Schumann. Over one million copies sold. SpinelSpinel Spinel The gemstone that was confused with ruby and sapphire for over 1000 years. Gems from SpaceGems from Space Extraterrestrial Gems A number of materials from space are used as attractive gems.
Kyanitekyanite Kyanite is a metamorphic mineral used to make porcelain, abrasive products and gems. US Diamond MinesUnited States Diamond Mines US Diamond Mines Where are diamonds mined in the United States? Red BerylRed Beryl Red Beryl is one of the rarest gems. Small amounts are mined at one locality in Utah. Petrified WoodPetrified Wood Petrified Wood is a fossilized wood that often serves as a colorful gem material.
ChrysopraseChrysoprase Chrysoprase - The translucent green variety of chalcedony that is colored by nickel. RhodochrositeRhodochrosite Rhodochrosite : a manganese mineral used as an ore, a pink gem and an ornamental stone. PrasiolitePrasiolite Prasiolite is amethyst that has been heat-treated to a leek-green color. AmetrineAmetrine Ametrine is a bicolor quartz (amethyst + citrine) and a gemstone of growing popularity.
Amazing Agate PhotosAgates Beautiful Agates A gallery of spectacular agate photos and descriptions by Richard Weston. Gem MineralsGem Mineral Collections Gem Mineral Collections are a great way to learn about gem materials. Get yours. AzuriteAzurite Azurite is a vivid blue copper mineral that can be cut into beautiful cabochon gems. Biggest MisconceptionDiamonds from Coal Diamonds Do Not Form From Coal Learn several reasons why the coal origin is false.
Geology of GemsGeology of Gems Geology of Gems - The first comprehensive book on the geology of gem deposits. Arkansas DiamondsArkansas Diamonds You Can Be A Diamond Miner! At the Crater of Diamonds mine you can keep what you find. Smoky QuartzSmoky quartz Smoky Quartz - A brown color-variety of the mineral quartz often cut as a gem. CabochonsCabochons Cabochons A photo gallery of cabochon gemstones from around the world.
Azurmalachiteazurmalachite Azurmalachite is a mixture of malachite and azurite. It can be a beautiful blue and green gem. Chatoyant Gemscats eye gems Chatoyant Gems look like the eye of a cat. They have a line of light that moves across the gem. Gem BerylGem Beryl Beryl - the mineral of emerald, aquamarine, morganite, heliodor, goshenite, and more. DiopsideChrome Diopside Chrome Diopside is a green gemstone that is often used as an alternative stone for emerald.
IoliteIolite Iolite is the gem variety of the mineral cordierite. An alternative to sapphire and tanzanite. Rhodoniterhodonite Rhodonite is a pink manganese silicate used as a gemstone, an ornamental stone and an ore. Rock Tumblingrock tumblers Rock Tumblers - All about rock tumblers and rock tumbling. Read before you buy a tumbler. SpodumeneSpodumene Spodumene is an ore of lithium and the mineral of the gems kunzite and hiddenite.
ScapoliteScapolite Scapolite can be a pretty faceted stone or a translucent cab with cats-eye effects. UnakiteUnakite Unakite A gem material composed of green epidote and pink orthoclase. Chrysoberylchrysoberyl Chrysoberyl an extreme gem. Its hardness is 8.5, can display chatoyance or color-change. Fancy SapphireFancy Sapphires Fancy Sapphires are gem corundums of any color other than red, blue or colorless.
SerpentineSerpentine Serpentine - a group of metamorphic minerals used as gems and architectural stone. Brown DiamondsBrown Diamonds Brown Diamonds are growing in popularity and are frequently seen in fashion jewelry. BenitoiteBenitoite Benitoite - Geology of the State Gem of California - USGS report from 1911. Zoisitezoisite Zoisite is a diverse gem. Tanzanite, thulite and anyolite are three of its gem varieties.
US Gem ProductionUS Gemstone Production U.S. Gemstone Production is very low compared to the U.S. being the largest consumer. HeleniteHelenite Helenite is a man-made glass produced by fusing ash from the 1980 Mount St. Helens eruption. Turritella AgateTurritella Agate Turritella Agate is a brown agate containing snail fossils from the Green River Formation. Facts About DiamondsDiamond Facts Facts About Diamonds You are a diamond expert if you know all of these!
Polka Dot AgatePolka Dot Agate Polka Dot Agate - a translucent blue to white agate with a suspension of colorful dots. ApatiteApatite Apatite produces gemstones with vivid colors and is popular with collectors. Titanite aka SpheneTitanite Titanite is also known as sphene. It is a minor source of titanium and a minor gem. K2 GraniteK2 Granite - aka K2 Jasper K2 Granite is a white granite with blue orbs of azurite. It is a new gem material from Pakistan.
Maw Sit SitMaw Sit Sit Maw Sit Sit is a metamorphic rock and a gem material that was once thought be jade. Iris AgateIris Agate Iris Agate can produce a rainbow of colors when light passes between its thin bands. Synthetic DiamondsSynthetic Diamonds Synthetic Diamonds of spectacular quality are now being produced in labs. HeliodorHeliodor Heliodor is a yellow, greenish-yellow or golden yellow beryl used as a gem.
Peanut Wood?Peanut Wood Peanut Wood? Yes! It is a very interesting gem material found in Western Australia. AndalusiteAndalusite Andalusite - exhibits strong pleochroism and often has sets of oriented inclusions. Petrified PalmPetrified Palm Petrified Palm is often confused with petrified wood. It is a distinctly different material. Hardness PicksHardness Picks Hardness Picks - Mohs hardness testing with precise and easy-to-use hardness picks.
Diamond ProducersDiamond Producers Diamonds are mined in many countries and their relative importance changes frequently. Tumbled StonesTumbled Gemstones 50+ Different Tumbled Stones for sale at RockTumbler.com. (affiliated with geology.com) Canadian DiamondsCanadian Diamonds Canadian Diamond Mines produce some of the largest and highest quality diamonds! SemipreciousSemiprecious vs. Precious Semiprecious vs. Precious - What is the difference between these two types of stones?
Geology ToolsGeology Tools Geology Tools - Rock hammers, field bags, hand lenses, maps, hardness picks, gold pans. Fee MiningFee Mining Fee Mining sites are mines that you can enter, pay a fee, and keep anything that you find. We RecommendWyoming Gemstones We RecommendColoured Gemstone Deposits in the Yukon
       



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