Geodes

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Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Both big and beautiful, this Celestite heart geode from Madagascar is a sure must-have! Found on this large geode is a multitude of dazzling Celestite crystals, all with a bright...
$164.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Directly from Brazil, fall in love with this gorgeous cut base Amethyst geode! Featured on this dazzling geode is a vibrant shade of purple accompanied by crystals that shimmer and...
$34.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Fall in love with this beautiful cut base Amethyst geode from Brazil! This dazzling geode features a variety of gorgeous Amethyst crystals, all with a vibrant shade of purple. It...
$32.99
Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem avenue Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem avenue
Natural Celestite Gemstone Crystal Cluster Geode Specimen
Fall in love with this beautiful Celestite geode! This dazzling geode comes to us all the way from Madagascar and features a vibrant shade of sky blue accompanied by touches...
$152.99
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geo...
Eggcellent quality paired with eye-catching beauty, these Celestite egg shaped geodes come to us all the way from Madagascar! With gorgeous sky blue crystals, these Celestite egg geodes are a...
$168.99
Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Natural Celestite Gemstone Crystal Cluster Geode Specimen
Both mesmerizing and unique, this Celestite geode comes to us from Madagascar and is a sure must-have! Found on this dazzling geode is a vibrant shade of blue along with...
$121.99
Natural Celestite Gemstone Crystal Cluster Geode Specimen Natural Celestite Gemstone Crystal Cluster Geode Specimen
Natural Celestite Gemstone Crystal Cluster Geode Specimen
Amazing quality paired with an eye-catching beauty, fall in love with this dazzling Celestite geode! This lovely geode comes to us from Madagascar and features a vibrant shade of sky...
$145.99
Natural Celestite Gemstone Crystal Cluster Geode Specimen Natural Celestite Gemstone Crystal Cluster Geode Specimen
Natural Celestite Gemstone Crystal Cluster Geode Specimen
Directly from Madagascar, fall in love with this beautiful Celestite geode. Various vibrant sky-blue crystals are found on this dazzling geode accompanied by amazing quality.  Please note the stand is...
$85.99
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geo...
Fall in love with this beautiful Celestite egg shaped geode! This dazzling geode comes to us from Madagascar and features a vibrant shade of sky blue accompanied by touches of...
$87.99
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geo...
Fall in love with this beautiful Celestite egg-shaped geode! This dazzling geode comes to us from Madagascar and features a vibrant shade of sky blue accompanied by touches of gray...
$87.99
Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Natural Celestite Gemstone Crystal Cluster Geode Specimen
Directly from Madagascar, love this beautiful Celestite geode. Various vibrant sky-blue crystals are found on this dazzling geode accompanied by amazing quality. This Celestite geode will make any home or...
$159.99
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geo...
Eggcellent quality paired with an eye-catching beauty, these Celestite egg-shaped geodes come to us from Madagascar! With gorgeous sky-blue crystals, these Celestite egg geodes are a sure must-have for any...
$89.99
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Egg Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Egg Shaped Natural Celestite Gemstone Crystal Cluster Geo...
Directly from Madagascar, fall in love with this beautiful egg-shaped Celestite geode. Various vibrant sky-blue crystals are found on this dazzling geode accompanied by amazing quality. Please note the stand...
$37.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Incredible beauty paired with great quality, this Celestite heart geode is a sure must-have! This heart geode comes to us from Madagascar and features vibrant shades of sky blue accompanied...
$104.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Directly from Madagascar, fall in love with this beautiful heart-shaped Celestite geode. Found on this dazzling geode is various vibrant sky-blue crystals accompanied by amazing quality. This Celestite heart geode...
$78.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen-Gem Avenue
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Fall in love with this gorgeous Celestite heart shaped geode! This lovely geode comes to us all the way from Madagascar and features vibrant sky blue crystals that shimmer beautifully...
$29.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
This beautiful heart-shaped Celestite geode comes to us from Madagascar! Featured in this dazzling piece is a variety of crystals with a vibrant shade of sky blue. Please note the...
$55.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Directly from Madagascar, fall in love with this beautiful heart-shaped Celestite geode. Found on this dazzling geode is a variety of vibrant sky-blue crystals accompanied by amazing quality. Please note...
$22.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Incredible beauty paired with great quality, this Celestite heart geode is a sure must-have! This heart geode comes to us from Madagascar and features vibrant shades of sky blue accompanied...
$53.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Directly from Madagascar, fall in love with this lovely Celestite heart-shaped geode! Found on this gorgeous geode is a vibrant shade of sky blue accompanied by shades of gray as...
$39.99
Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen Heart Shaped Natural Celestite Gemstone Crystal Cluster Geode Specimen
Heart Shaped Natural Celestite Gemstone Crystal Cluster G...
Fall in love with this beautiful heart-shaped Celestite geode! Directly from Madagascar, found on this lovely heart geode is a bright shade of sky blue accompanied by shades of gray...
$49.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Straight from Brazil, this cut-base Amethyst geode is like no other! Featured on this dazzling geode is a vibrant shade of purple accompanied by Amethyst crystals that shimmer and sparkle...
$49.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Fall in love with this beautiful cut base Amethyst geode! This lovely geode comes to us from Brazil and features a vibrant shade of purple accompanied by crystals that shimmer...
$48.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Incredible beauty paired with great quality, this cut base Amethyst geode is a sure must-have! This geode comes to us from Brazil and features vibrant shades of purple accompanied by...
$52.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Directly from Brazil, this cut base Amethyst geode is a sure must have! Found on this stunning geode is a vibrant and deep shade of purple accompanied by dazzling crystals...
$54.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
This mesmerizing cut base Amethyst geode comes directly from Brazil! Found on this stunning piece is a vibrant shade of purple accompanied by a multitude of lovely amethyst crystals. These...
$48.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Amazing quality paired with an eye-catching beauty, fall in love with this dazzling cut base Amethyst geode! This lovely geode comes to us from Brazil and features a vibrant deep...
$39.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Indulge in the elegance of this Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen. Sourced from Brazil, this raw gemstone boasts a vivid deep purple hue and a stunning...
$59.99
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen
Elevate your collection with this luxurious Natural Deep Purple Amethyst Cut Base Crystal Geode Specimen. Mined in Brazil, these raw amethyst gemstones are expertly cut with a stunning deep purple...
$152.99

Geodes are fascinating rocks with crystal-filled cavities, offering a glimpse into the natural beauty of the earth. The term "geode" comes from the Greek word for earth, "geo," reflecting their deep connection to the planet. Found worldwide, geode rocks are especially abundant in the deserts of the southwestern United States. They come in various shapes and sizes, from spherical to oblong or blocky forms, and can range from just a few centimeters to over a meter in diameter. Inside, you'll discover a stunning array of crystals, including amethyst, quartz, and calcite, in both colorless and vibrant hues.

Amethyst geodes, in particular, are highly sought after for their beauty and unique shapes. Often referred to as "church crystals" due to their resemblance to cathedral windows, these geodes come in a variety of sizes. From small amethyst geode stones perfect for a desk display to large amethyst geodes that make striking decor pieces, these crystals are known for their calming energy and aesthetic appeal. Some believe that amethyst geodes can improve sleep, relieve stress, and enhance mental clarity, making them a favorite among crystal enthusiasts.

At Gem Avenue, we offer a wide selection of geodes, including geode stones from Brazil and Uruguay. Brazilian geodes, especially their famous Geode Cathedrals, are known for their light to medium amethyst tones. In contrast, Uruguayan geodes are either small in size or set on cast iron pedestals, admired for their deep, rich colors. Whether you're looking for a large amethyst geode or something smaller, our collection has something to suit every taste.

Crystal geodes make thoughtful and unique gifts for those who appreciate the beauty and energy of crystals. Whether you're searching for geode crystals to add to your home décor or looking for the perfect gift, our selection of geodes, including geode bookends, is sure to have something special. Explore our collection today and find the ideal geode for yourself or the crystal lover in your life.

What are geodes?

Geodes are hollow rocks that contain crystal formations inside. These formations develop within the cavity of the rock, creating stunning displays of minerals like quartz, amethyst, and calcite. They vary in size and shape and can be found in different parts of the world.

What is a geode rock?

A geode rock is a specific type of rock that contains a hollow cavity lined with crystals or mineral matter. These rocks can appear unremarkable on the outside, often looking like normal stones, but when cut open, they reveal beautiful, intricate crystal structures inside.

geode rock - Gem Avenue

How are geodes formed? or How do geodes form?

Geodes form over millions of years through geological processes. They typically start as bubbles in volcanic rock or cavities in sedimentary rock. Over time, water containing dissolved minerals seeps into the hollow space, and as the water evaporates, the minerals begin to crystallize on the inside walls of the cavity, creating the geode's crystalline interior.

Types of geodes

There are several types of geodes, including:

  • Amethyst geodes: Known for their purple amethyst crystals.
  • Quartz geodes: Contain clear or white quartz crystals.
  • Calcite geodes: Feature calcite crystals, often in various colors.
  • Agate geodes: Have banded agate formations within the crystal cavity.
  • Chalcedony geodes: Lined with chalcedony, a microcrystalline quartz.
  • Celestite geodes: Typically found in regions like Madagascar and parts of the United States. When cut open, their interior reveals clusters of celestite crystals, making them a stunning and unique addition to any collection.

How much are geodes worth?

The value of a geode depends on factors such as its size, the type and quality of the crystals inside, and its rarity. Small, common geodes may sell for a few dollars, while larger or rare specimens, like high-quality amethyst geodes, can be worth hundreds or even thousands of dollars. The overall aesthetic and condition of the geode also play a role in its valuation.