• Florida Agatized Coral Fossil Specimen, Natural Agate Replacement, Druzy Quartz Cavities image 1
  • May include: Two matching, irregularly shaped, polished stone slabs with blue, white, and black patterns. The stones are displayed on clear stands atop a black rotating platform. The text "Set 1" is visible on the platform.
  • May include: Two agate stone slices, set on clear stands, displayed on a black rotating platform. The stones feature a mix of white, black, and tan colors with intricate patterns. The text "Set 2" is visible on the platform.
  • May include: Two geode halves with a black and white interior and a rough, textured exterior. The geodes are displayed on clear stands, set against a neutral background. The base is black, and the text "Set 3" is visible.
  • May include: Two geode halves with a mix of colors, including cream, tan, blue, and black, are displayed on clear stands. The geodes are set on a black circular base. The text "Set 4" is visible on the base.
  • May include: A close-up of a geode with a hollow center. The geode features layers of white, brown, yellow, and blue colors. The interior has a dark blue and black hue with white speckles. The outer edges are a creamy white color.
  • May include: Two vertical agate slices with rough, textured gray outer edges and polished, banded interiors featuring cream, yellow, and black patterns. The stones are displayed on clear acrylic stands, with the text Set 5 at the bottom.
  • May include: A cross-section of a geode, showcasing layers of white, black, and yellow-toned agate. The interior reveals a cluster of rounded, yellow-hued formations. The outer edge has a rough, textured appearance, with a mix of colors.
  • May include: Two white and black agate geodes, displayed on clear stands. The geodes have a crystalline exterior and a dark interior with intricate patterns. The set is labeled "Set 6" in white text.
  • May include: A natural geode specimen with a rough, white exterior and a hollow interior. The interior features clear crystal formations, with black and brown mineral deposits. The geode is held by a hand.
  • Florida Agatized Coral Fossil Specimen, Natural Agate Replacement, Druzy Quartz Cavities Set 7
  • May include: Two white, textured rock formations with dark brown and black interior details are displayed on clear stands. The rocks are set against a gray background on a black circular base. The text "Set 8" is visible at the bottom.
  • May include: Close-up of a geode with a striking contrast of colors. The interior features a deep black core, bordered by layers of cream, tan, and white. The outer shell is a rough, textured white. A natural, decorative piece.
  • May include: Two white and silver decorative oyster shell pieces, displayed on clear stands. The shells have a textured, natural appearance. The set is labeled "Set 9" in white text.
  • May include: Close-up of a white and cream-colored rock formation with dark gray and light brown veining. The rock has a layered texture with a rough, uneven surface. A small section of the rock has a light blue hue.
  • May include: Two geode slices with black and white patterns, displayed on clear stands. The geodes are set on a black, circular platform. The text "Set 10" is visible at the bottom of the image.
  • May include: A geode half with a white, blue, and brown color scheme. The geode is on a black circular stand. The text "11 (solo)" is above the geode.
  • May include: A circular agate geode slice featuring concentric bands of white, gray, and translucent tan. The center contains a textured, crystalline cavity with sparkling druzy formations surrounded by smooth, layered mineral rings.
  • May include: A collection of polished agate slices in various shapes and sizes. The slices display a range of colors, including black, white, blue, and gold, with intricate patterns. They are displayed on clear acrylic stands.
  • May include: An overhead shot displays a collection of irregularly shaped, natural stone specimens. The stones vary in color, including white, black, blue, and yellow, with a rough, textured surface. A metal ruler with inch measurements is placed across the center.
  • Florida Agatized Coral Fossil Specimen, Natural Agate Replacement, Druzy Quartz Cavities image 1
  • Product video
  • May include: Two matching, irregularly shaped, polished stone slabs with blue, white, and black patterns. The stones are displayed on clear stands atop a black rotating platform. The text "Set 1" is visible on the platform.
  • May include: Two agate stone slices, set on clear stands, displayed on a black rotating platform. The stones feature a mix of white, black, and tan colors with intricate patterns. The text "Set 2" is visible on the platform.
  • May include: Two geode halves with a black and white interior and a rough, textured exterior. The geodes are displayed on clear stands, set against a neutral background. The base is black, and the text "Set 3" is visible.
  • May include: Two geode halves with a mix of colors, including cream, tan, blue, and black, are displayed on clear stands. The geodes are set on a black circular base. The text "Set 4" is visible on the base.
  • May include: A close-up of a geode with a hollow center. The geode features layers of white, brown, yellow, and blue colors. The interior has a dark blue and black hue with white speckles. The outer edges are a creamy white color.
  • May include: Two vertical agate slices with rough, textured gray outer edges and polished, banded interiors featuring cream, yellow, and black patterns. The stones are displayed on clear acrylic stands, with the text Set 5 at the bottom.
  • May include: A cross-section of a geode, showcasing layers of white, black, and yellow-toned agate. The interior reveals a cluster of rounded, yellow-hued formations. The outer edge has a rough, textured appearance, with a mix of colors.
  • May include: Two white and black agate geodes, displayed on clear stands. The geodes have a crystalline exterior and a dark interior with intricate patterns. The set is labeled "Set 6" in white text.
  • May include: A natural geode specimen with a rough, white exterior and a hollow interior. The interior features clear crystal formations, with black and brown mineral deposits. The geode is held by a hand.
  • Florida Agatized Coral Fossil Specimen, Natural Agate Replacement, Druzy Quartz Cavities Set 7
  • May include: Two white, textured rock formations with dark brown and black interior details are displayed on clear stands. The rocks are set against a gray background on a black circular base. The text "Set 8" is visible at the bottom.
  • May include: Close-up of a geode with a striking contrast of colors. The interior features a deep black core, bordered by layers of cream, tan, and white. The outer shell is a rough, textured white. A natural, decorative piece.
  • May include: Two white and silver decorative oyster shell pieces, displayed on clear stands. The shells have a textured, natural appearance. The set is labeled "Set 9" in white text.
  • May include: Close-up of a white and cream-colored rock formation with dark gray and light brown veining. The rock has a layered texture with a rough, uneven surface. A small section of the rock has a light blue hue.
  • May include: Two geode slices with black and white patterns, displayed on clear stands. The geodes are set on a black, circular platform. The text "Set 10" is visible at the bottom of the image.
  • May include: A geode half with a white, blue, and brown color scheme. The geode is on a black circular stand. The text "11 (solo)" is above the geode.
  • May include: A circular agate geode slice featuring concentric bands of white, gray, and translucent tan. The center contains a textured, crystalline cavity with sparkling druzy formations surrounded by smooth, layered mineral rings.
  • May include: A collection of polished agate slices in various shapes and sizes. The slices display a range of colors, including black, white, blue, and gold, with intricate patterns. They are displayed on clear acrylic stands.
  • May include: An overhead shot displays a collection of irregularly shaped, natural stone specimens. The stones vary in color, including white, black, blue, and yellow, with a rough, textured surface. A metal ruler with inch measurements is placed across the center.
Report this item to Etsy

Florida Agatized Coral Fossil Specimen, Natural Agate Replacement, Druzy Quartz Cavities

RayRaysRockss  
5 out of 5 stars

Item highlights

  • Gift wrapping: Gift wrapping by RayRaysRockss

    Let me know what occasion the gift is for and I'll add a special touch
View more

Item review

Why this review appears

All reviews are from verified buyers. This review is shown automatically based on factors like recency, whether it includes comments, your chosen language, and whether the rating reflects the typical experience with the shop.

“Stunning piece! Seller was very quick and polite!”

Katrina

9 days ago

View all

Only 4 left and in 2 carts

Price:$53.99+

Please select an option

You can only make an offer when buying a single item

Shipping & return policies
  • Get it by
    Nov 5-9
  • Returns & exchanges
    Accepted within 30 days
  • Cost to ship
    FREE to United States, 43215.

Reviews for this item

5.0

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience.

(1 reviews)

5.0 Item quality
5.0 Shipping
5.0 Customer service
100% Buyers recommend
5 out of 5 stars 5 This item

Katrina Oct 21, 2026

Stunning piece! Seller was very quick and polite!

Katrina Oct 21, 2026

Seller's description

Specifications

These Florida agatized fossil coral specimens reveal the remarkable process where ancient coral skeletons were slowly replaced by silica-rich minerals, forming agate and chalcedony over millions of years.

Each piece in this collection shows a different stage of fossilization. You will see preserved coral structures, layered agate banding, translucent chalcedony, and in several pieces small druzy quartz cavities where crystals formed inside natural voids.

Some options are matched pairs split from the same coral specimen, displaying mirror-like mineral structures, while others are single specimens with unique geode-style interiors.

The outer white material preserves the original coral skeleton, while the interior reveals the mineral replacement that created the agate patterns.

Because every specimen forms differently in nature, no two pieces are alike. You will receive the exact numbered specimen shown in the photos.

Please note: natural crystals are not manufactured items and may include contact marks, growth interruptions, or minor edge variations created during formation or mining.

How to Choose Your Specimen
Each agatized coral specimen in this listing is completely unique. Use the numbered photos to select your favorite piece.

If you are unsure where to start:
• Love sparkle? Choose Set 6 or Set 11 for druzy quartz crystals.
• Prefer dramatic contrast? Choose Set 1, Set 7, or Set 10 with bold black chalcedony.
• Looking for interesting fossil structure? Choose Set 5 or Set 8 where coral patterns are especially visible.
• Want the largest pieces? Choose Set 1 or Set 2.

All photos show the exact specimen you will receive, and a ruler is included in the images for scale.

Available Specimens
Set 1 – Largest Black & Blue Pair
Size: 2.5” wide × 4.25” tall × 1” deep (pair measured together)
Weight: 139 g
The largest pair in the collection, featuring layered shades of blue, white, and black chalcedony with subtle yellow tones. Strong contrast and flowing mineral patterns make this a bold display specimen.

⸻
Set 2 – Orange & Blue Pair
Size: 2.75” wide × 4.25” tall × 1.3” deep
Weight: 193 g
The heaviest set in the group, combining warm orange mineral tones with cool blue chalcedony. The color contrast highlights the natural agate replacement within the fossil coral structure.

⸻
Set 3 – Asymmetrical Coral Pair
Size: 3.25” wide × 3.75” tall × 2” deep
Weight: 157 g
Unlike most pairs, this specimen does not match perfectly, creating a more organic fossil presentation. Dark chalcedony bands flow through the coral structure, giving it a sculptural, natural feel.

⸻
Set 4 – Blue & Orange Contrast Pair
Size: 2” wide × 3” tall × 2” deep
Weight: 89 g
A vibrant piece with beautiful blue chalcedony contrasted by warm orange mineral staining. The interior patterns clearly show the mineral replacement that formed the agatized coral.

⸻
Set 5 – Yellow Edge Coral Pair
Size: 1.75” wide × 4.25” tall × 1.25” deep
Weight: 108 g
This tall specimen shows soft yellow mineral tones along the outer coral structure with layered chalcedony toward the interior. The vertical shape makes it an elegant display piece.

⸻
Set 6 – Druzy Crystal Pair
Size: 1.75” wide × 3.5” tall × 1.5” deep
Weight: 101 g
A standout set featuring a sparkling druzy quartz pocket inside the coral cavity. The crystal-lined interior contrasts beautifully with the smooth chalcedony surrounding it.

⸻
Set 7 – “Chess Knight” Pair
Size: 1.75” wide × 2.75” tall × 1.5” deep
Weight: 97 g
This sculptural pair resembles the shape of a chess knight when displayed upright. Dark chalcedony banding creates strong visual movement across the interior surfaces.

⸻
Set 8 – Black Druzy Cave in White Coral
Size: 1.5” wide × 3.25” tall × 1.5” deep
Weight: 90 g
A striking specimen with a dark druzy-lined cave set within bright white fossil coral. The contrast between the sparkling interior and pale coral matrix makes this piece especially eye-catching.

⸻
Set 9 – White Cave with Black Lining
Size: 1” wide × 3” tall × 1.25” deep
Weight: 51 g
A slender specimen featuring a white chalcedony cavity framed by a dramatic black agate border. The simple, clean banding highlights the mineral replacement process beautifully.

⸻
Set 10 – High Contrast Mini Pair
Size: 1.25” wide × 2.25” tall × 1” deep
Weight: 47 g
A smaller but high-contrast set with bold black chalcedony against pale coral matrix. Compact and dramatic, this piece shows striking agate banding in a miniature specimen.

⸻
Set 11 – Solo Druzy Specimen
Size: 2” wide × 2” tall × 1” deep
Weight: 50 g
A single agatized coral piece featuring a sparkling druzy quartz cavity surrounded by soft chalcedony. The open crystal pocket gives it the appearance of a tiny natural geode.

RayRaysRockss made this item with help from
Wholesaler, El Paso, TX
  • Handpicked by
    RayRaysRockss
  • Materials
    Gemstone: Coral
  • Gift wrapping

    Available

    View details

    Gift wrapping by RayRaysRockss

    Let me know what occasion the gift is for and I'll add a special touch

Delivery details and policies

  • Get it by
    Nov 5-9
  • Returns and exchanges
    Accepted within 30 days.
  • Ships from
    Riverton, UT
  • Cost to ship
    FREE to United States, 43215

    There was a problem calculating your shipping. Please try again.

Shop with confidence
Star Seller

This seller consistently earned 5-star reviews, shipped orders on time, and replied quickly to messages.

Etsy Purchase Protection

If something goes wrong with an order, we've got your back on all eligible purchases. View program terms

Climate investments

Etsy supports climate solutions, from electric delivery trucks to carbon offsets for every delivery. View how

Meet your seller

RayRaysRockss
Rachael Larsen
RayRaysRockss ·

United States

We calculate this number using a recency-weighted average of all ratings, with a rating's value decreasing by half each year to best reflect the current experience. 4.9
·
521 sales
·
15 years on Etsy
Rachael Larsen
1 shop member

Usually responds in a few hours

Smooth shipping Has a history of shipping on time with tracking.

Speedy replies Has a history of replying to messages quickly.

Rave reviews Average review rating is 4.8 or higher.

You may also like

Shoppers with similar taste loved these

Show more
Show more

Explore related searches

Fossil Coral

Agatized Coral

Agatized Oyster

Uv Agatized Coral

Black Agatized Coral

Chain Coral Fossil

Listed on Oct 11, 2026
71 favorites
Homepage Home & Living Home Decor Home Accents Rocks & Geodes