Skip to main content
Video Loading
Want more images or videos?
Request additional images or videos from the seller
1 of 14

Double Windowed Amethyst Geode with Agatised Borders and Rare Calcite Formation

About the Item

The central element of this geode has been preserved with two windows on each side, revealing gorgeous calcite formations sat on a blanket of differentially tinted amethystine quartz. The calcite itself is overlaid with white quartz and blackish goethite, the agatised borders polished in the round. This piece was legally and ethically sourced directly in the prestigious mines of Uruguay, South America. Uruguayan amethyst is internationally recognized as being the finest and most aesthetic amethyst in the world, due to its intense deep purple coloration, the large size of its peaked crystals, and its durability. These crystals were formed over 120-140 million years during the Cretaceous period, and as all of our pieces are formed naturally, they are completely unique and unrepeatable natural wonders of art.
  • Dimensions:
    Height: 10.44 in (26.5 cm)Width: 16.54 in (42 cm)Depth: 9.85 in (25 cm)
  • Materials and Techniques:
  • Place of Origin:
  • Period:
  • Date of Manufacture:
    120-140 Million Years
  • Condition:
  • Seller Location:
    London, GB
  • Reference Number:
    Seller: Stock No. 4971stDibs: LU5394229995292

More From This Seller

View All
Agatised Geode Slice with Rare Central Calcite Formation and White Quartz
Located in London, GB
Bordered by a thick, blueish agate layer, this wonderful slice preserves an interior of large white quartz crystals with a prominent centr...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Half Polished Amethyst Geode with Agate Border and Calcite Formation
Located in London, GB
A half polished geode with a thick agatised border. The inside covered by deep purple amethyst crystals and 2 beautiful calcite formations at the centre, one of them covered with a b...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Dynamic Formation with Thick Agatised Borders
Located in London, GB
A dynamic formation with a thick blue-brown agatised border. The crystal lined interior equally dynamic with shocks of electric amethyst contrasting with darker colours on a bed of large stalactites...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Agatised Multi-Windowed Geode
Located in London, GB
This heavily agatiised medium sized geode contains 6 “windows” from which the beautiful amethyst interior can be appreciated. A spectacular display piece. This piece was legally...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

High Quality Half Amethyst Geode with Calcite Formation
Located in London, GB
A stunning half geode with an incredible amethyst and overlaid calcite formation at the bottom. The interior of the piece is a very deep cavity which presents very high-quality ameth...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

Lilac Half Geode with a Calcite Formation
Located in London, GB
A pleasing lilac amethyst formation of large crystals with a large honey coloured calcite at the centre and a smaller calcite to the side. Amethyst is predominantly light violet ...
Category

Antique 15th Century and Earlier Uruguayan Natural Specimens

Materials

Agate, Amethyst, Quartz

You May Also Like

Small Amethyst Geode with Rare Quartz after Calcite and Flower Formations
Located in Ametista Do Sul, BR
Sculptural and full of special features, this small yet gorgeous geode brings rarity at every point. Intact formations create an impressive landscape, resembling a natural cave or aquascape, with minerals that develop into a beautifully aesthetic composition. This rare combination makes it a standout piece for crystal aficionados, collectors, and décor artists seeking something truly extraordinary. The whole geode commands attention, and the first thing we notice is the calcite. It formed in different ways, with some perfectly crystallized formations adding a delicate touch to the specimen. The main calcite in this piece is a crystal after calcite, which could be a specimen in itself. Looking closely at it, on the back part of the geode, we find beautiful small amethyst rosettes...
Category

2010s Brazilian Natural Specimens

Materials

Crystal, Quartz, Rock Crystal

Purple Amethyst Geode with Rare Sparkly Flower-Like Druzy Formation and Calcite
Located in Ametista Do Sul, BR
An Amethyst Geode that brings rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare calcite inclusions, this is a piece of natural artistry. This geode is a cen...
Category

2010s Brazilian Natural Specimens

Materials

Agate, Amethyst, Crystal, Rock Crystal

Deep Purple Amethyst Geode with Rare Flower-Like Druzy Formation and Calcite
Located in Ametista Do Sul, BR
An Amethyst Geode that brings rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare double-terminated calcite inclusions, this is a piece of natural artistry. T...
Category

2010s Brazilian Natural Specimens

Materials

Agate, Amethyst, Crystal, Rock Crystal

Pair of Purple Amethyst Geodes with Rare Flower-Like Druzy Formation and Calcite
Located in Ametista Do Sul, BR
A pair of Amethyst Geodes, each bringing the rarely seen dual-zoned purple Amethyst druzy, gorgeous aesthetics, and rare calcite inclusions, are pieces of natural artistry. These geo...
Category

2010s Brazilian Natural Specimens

Materials

Agate, Amethyst, Crystal, Rock Crystal

Natural Uruguayan Amethyst Geode with Rare Calcite and Sparkly Purple Amethyst
Located in Ametista Do Sul, BR
A Uruguayan Amethyst Geode Masterpiece: A Rarely Seen Fusion of Perfect Calcite with Sparkly Purple Amethyst Druzy ▫️ Description Renowned worldwide for their exceptional beauty, U...
Category

2010s Brazilian Natural Specimens

Materials

Agate, Amethyst, Crystal, Rock Crystal

Amethyst Cathedral Geode with Rare Bi-Color Druzy Formation
Located in Ametista Do Sul, BR
An extraordinary Amethyst Geode that showcases a superb formation with two distinct colors, this geode showcases a blend of deep purple Amethyst lines that intricately interlace with...
Category

2010s Brazilian Natural Specimens

Materials

Amethyst, Crystal, Rock Crystal

Recently Viewed

View All