Can You Identify These Crystals, Gemstones and Minerals?

By: Elizabeth Lavis
Estimated Completion Time
3 min
Can You Identify These Crystals, Gemstones and Minerals?
Image: miljko/E+/Getty Images

About This Quiz

It's no secret that our planet is bursting with brightly-colored gems, valuable minerals and opaque crystals of all shapes and sizes.

This quiz will take you deep below the Earth's crust on a quest to highlight some of the most fabulous crystals, gemstones and minerals that have been used and worn by humans for centuries. From romantic diamonds that signal everlasting devotion to jet-black obsidian forged deep in the belly of the planet, we tackle all of the popular — and not so popular — rocks that make up our big, beautiful world. Trust us; we have barely scratched the surface. There are plenty of rocks that simply didn't make the cut.

Even if you have a jewelry box stuffed with rare gems from all over the planet, you might have some trouble acing this quiz. You also could discover new favorites in this treasure-trove of questions that is designed to both educate and entertain you. If you have always wanted to show off your gem identifying skills, it's time to play geologist and prove that you know the difference between onyx and jasper, quartz and gypsum, and sapphires and emeralds. 

We came ready to rock your world with this challenging quiz! 

Geodes This normal-looking rock has a sparkly surprise inside! What is it?
Carnelian
Geode
Who doesn't love geodes? These marvelous specimens are grey and blah and the outside, but bursting with crystals on the inside. They are a rock and a crystal all wrapped into one!
Quartz
Mica

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Sapphire Its brilliant blue hue makes it one of the most coveted gemstones around. Which one is it?
Emerald
Ruby
Sapphire
Sapphires are the ultimate beautiful blues. This precious gemstone is a favorite pick for necklaces, rings and bracelets. These stunners go with just about everything in your closet.
Diamond

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Pearl necklace A string of these makes a stunning necklace. What is it?
Opal
Moonstone
Onyx
Pearl
Crack open an oyster and you might find one of these gleaming beauties. Pearls have long been coveted for long strands of pearl necklaces, classy earrings and also statement rings.

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Topaz This gem comes in a rainbow of different colors. Which one is it?
Topaz
Naturally-occurring topaz is actually pale yellow, but different impurities can render it rainbow-colored. It's a spectacularly hard stone, making it both durable and so attractive!
Calcite
Amber
Onyx

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Moonstone Wish upon a star for this fabulous stone. Which one is it?
Peridot
Quartz
Moonstone
Moonstones are so popular because they have an iridescent, otherworldly quality that sparkles in a burst of different colors and hues. They're strongly associated with chakras and intuition.
Silver

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Calcite This opaque crystal was used by many ancient people. Which one is it?
Calcite
Ancient Egyptians used calcite as a base for many of their carvings, including the goddess Bast, for which we get the modern word "alabaster." Calcite is also considered a healing crystal.
Graphite
Tiger’s eye
Feldspar

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Carnelian This vibrant orange-red semi-precious gemstone is totally striking. What is it?
Peridot
Topaz
Carnelian
Carnelian gets its brilliant hue from iron oxide, which also causes some of the more incredible designs that color these semi-precious stones. It makes an absolutely stunning statement ring.
Quartz

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Amber This ancient substance is made from a tree resin that looks good on a necklace. What are we talking about?
Moonstone
Amber
Amber is literally fossilized ancient tree resin, and each piece's unique impurities are what makes it so stunning. Sometimes you can even find insects preserved in pieces of amber.
Graphite
Tiger's eye

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Quartz A hard, commonly occurring mineral. What is it?
Feldspar
Beryl
Quartz
Quartz is a ubiquitous mineral made out of silicon and oxygen. It's extremely hard, earning it a "7" on the Mohs hardness scale. It's tremendously useful and found in many different products.
Shell

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Emerald Take me to Oz to see this brilliant green gem! Which one is it?
Emerald
Popularized in Frank L. Baum's classic children's book as the Emerald City, this gem is notable for its lush green hue and brilliant shine. It's a very precious stone for a reason!
Ruby
Sapphire
Garnet

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Opal ring This psychedelic gem makes a beautiful statement piece. What is it?
Ruby
Aquamarine
Bloodstone
Opal
Opals might look a little bit like moonstones, but the two are not the same. Opals are infused with brighter and more varied colors thanks to the fact that they're made of silica.

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Onyx diamond ring A jet-black stone that pairs perfectly with diamond. What is it?
Carnelian
Onyx
Onyx is exceptionally hard and very stunning to look at. The most popular variety of onyx is black, although you can also find it in white as well. Both are exceptionally beautiful.
Peridot
Tiger’s eye

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Graphite It's grey and somewhat sparkly. What are we talking about?
Jasper
Beryl
Graphite
Graphite is a naturally-occurring substance that magically transforms into a diamond if you apply enough pressure. If you've ever used a No. 2 pencil, you've worked with graphite.
Feldspar

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Rainbow Fluorite This rainbow-colored mineral is used in a number of different industries. Which one is it?
Topaz
Beryl
Fluorite
This mineral is beautifully rainbow-colored but is mostly used for industrial work. Those that are strikingly beautiful are used for jewelry, but fluorite mostly does work behind the scenes.
Shell

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Ruby ring A lusty red gem that's popular in jewelry. What are we talking about?
Ruby
The original red gems, rubies are tremendously beautiful and used for a number of different types of jewelry. They make stunning statement rings, lovely necklaces and beautiful bracelets.
Sapphire
Emerald
Quartz

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Peridot August babies wear this stone. What is it?
Pyrite
Obsidian
Peridot
Peridots are deep lime-colored and the birthstone for babies born in August. Although they are not as popular as some of the other gemstones in this quiz, peridots still have a fan following.
Cinnabar

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Tiger's Eye This striped stone looks a little like varnished wood. Which one is it?
Moonstone
Tiger's eye
Tiger's eye looks a little like varnished wood, and no two pieces are alike. It varies in hue from golden brown to reddish and deep brown and usually has stripes or bands of color.
Calcite
Coral

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Silver A precious metal popular for jewelry. What are we talking about?
Mica
Gold
Silver
Silver is one of the most popular metals in the world. Along with gold and platinum, silver makes up the base for many different pieces of jewelry. It is also gorgeous all on its own.
Graphite

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Mineral Mica It's a shiny mineral sometimes used for makeup. What is it?
Silver
Gold
Graphite
Mica
Mica is a brittle, silicone-based mineral that can make your skin glow. That's right, mica is often used for makeup and is thought to even have calming effects for irritated skin.

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Jasper Commonly red, this mineral can also come in yellow, green or brown. Which one is it?
Jasper
Red jasper is the most common type of this mineral and is known for its brilliant red color that comes from iron oxide. It also has some impurities, which makes each piece of jasper unique.
Tiger's eye
Amber
Topaz

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Diamond ring This gem is mostly associated with wedding proposals. What are we talking about?
Emerald
Sapphire
Peridot
Diamond
This wedding band favorite has long been used as a gem that you give your betrothed. Although diamonds are expensive, they are also very common and used in plenty of different industries.

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Beryl It is the base for another popular gem, aquamarine. What is it?
Sapphire
Moonstone
Beryl
Beryl is a base gemstone for some of our favorite stones, including brilliant pale blue aquamarine. It certainly polishes up nicely and looks very attractive in most types of jewelry.
Topaz

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Pyrite Called "fool's gold," this mineral is a sparkly fake. Which one is it?
Silver
Pyrite
During the Gold Rush, many prospectors uncovered pyrite and thought that they had struck it rich. This mistake gives pyrite its common nickname, "fool's gold." It is used in industrial practices.
Mica
Platinum

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Cat's Eye A stone with an animalistic quality. What is it?
Diamond
Amber
Cat's eye
Cat's eye, also known as chrysoberyl cat's eye, gets its distinctive stripe from the chatoyancy effect. They are not as popular as the other feline stone, tiger's eye, but can still be found in jewelry stores.
Moonstone

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Citrine This striking orange stone is a variety of quartz. Which one is it?
Citrine
Citrine sounds a bit like "citrus," which is fitting because the color of this gemstone is a deep, bright-colored orange hue. They are uniquely beautiful and a variation on quartz.
Peridot
Ruby
Topaz

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Feldspar You're standing on it right now! What's the name of this common mineral?
Mica
Graphite
Feldspar
Feldspar makes up 41% of the Earth's crust, making it one of the most common minerals on the planet. It is either very pale or colorless and extremely hard and durable.
Pyrite

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Lapis Lazuli Beautiful blues make up this semi-precious stone. Which one are we talking about?
Lapis lazuli
Lapis lazuli is a semi-precious stone that comes in one of the most beautiful naturally-occurring colors on the planet. Its stunning deep blue color made it valuable to ancient people.
Sapphire
Aquamarine
Peridot

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Turquoise This blue-green mineral pairs perfectly with silver. What is it?
Quartz
Turquoise
These opaque stones come in various blue-green colors and pair stunningly with silver jewelry. They are generally shot-through with copper coloration, making each one totally unique.
Geode
Beryl

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Seashells Collect it by the seashore. What are we talking about?
Mica
Shell
Seashells are naturally occurring materials that you can collect for free on any beach in the world. They have been traditionally made into jewelry and used for ceremonial purposes.
Pearl
Quartz

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Obsidian Forged in volcanoes, this jet-black substance is completely striking. What is it?
Onyx
Lapis lazuli
Obsidian
Obsidian is one of the most interesting elements on the planet because it is basically a mineral forged from a volcano. Shiny, jet-black and very hard, obsidian is absolutely incredible!
Jasper

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Sulfur It's not rotten eggs, it's this pale yellow element. What is it?
Feldspar
Graphite
Calcite
Sulfur
Sulfur is a pale yellow element that famously smells a lot like rotten eggs. It can be dangerous to humans, and you should avoid inhaling a large amount of it- for your health and because the smell is so bad!

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Amethyst necklace A purple beauty that is common in necklaces. What are we talking about?
Ruby
Peridot
Amethyst
Amethysts are actually a purple-colored variety of quartz and have been used for spiritual and ceremonial purposes for years. They are popular as stand-alone stones and in necklaces.
Fluorite

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Malachite Breathtakingly green, this lovely mineral is popular in jewelry. What is it?
Malachite
Malachite is notable for its beautiful green hue and various patterns. Each one is a different canvas of green hues, stripes and swirls. Its unique beauty is what makes it so popular.
Obsidian
Turquoise
Opal

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Gypsum It's the main ingredient in chalk. Which mineral are we talking about?
Gypsum
Gypsum is the main ingredient in chalk, plaster and drywall. Its soft composition makes it the perfect candidate for all of these household items. It's very common and occurs all over the world.
Mica
Quartz
Carnelian

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Coral Under the sea you'll find this living rock. What is it?
Shell
Pearl
Coral
Coral is not technically a mineral or gemstone, but it is a naturally forming formation that occurs under the ocean. Coral is alive, and it is vital to the health of our many oceans.
Pyrite

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Cinnabar This tasty-sounding mineral is absolutely not fit for human consumption. What is it?
Silver
Jade
Topaz
Cinnabar
The bright-red hue of cinnabar makes it a favorite pigment and dye worldwide. It contains a lot of mercury, so even though it sounds like a bowl of breakfast cereal, it is totally toxic.

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Brazilianite stone This green-yellow precious stone is native to Brazil. Which one is it?
Brazilianite
Brilliant brazilianite is native to Brazil and is considered to be a semi-precious stone. It makes a stunning addition to any piece of statement jewelry and shines up so beautifully.
Citrine
Peridot
Topaz

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Agate This gorgeous stone is a collection of different hues. What is it?
Tiger's eye
Agate
Agate is a celebration of different colors, with the base color being a rusty red. When shined up, it is absolutely stunning and makes a gorgeous stand-alone stone or part of a statement ring.
Cat's eye
Mica

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Bloodstone A gory gem also known as heliotrope. What are we talking about?
Shale
Onyx
Obsidian
Bloodstone
Bloodstone is a dark green stone that is flecked with red, hence the gory name. It is also known as heliotrope and contains large quantities of green jasper and traces of red hematite.

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Garnet It's commonly red like a ruby, but this stone stands on its own. What is it?
Sapphire
Garnet
Common garnets are deep red, beautiful gems that rival rubies. This semi-precious gem also comes in shades of deep orange and even bright green. Green garnets are the rarest and most valuable.
Amethyst
Citrine

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