15th Century and Earlier Natural Specimens
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1,016
179
573
1,664
80
160
161
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Period: 15th Century and Earlier
Returnable Items Only
1 of 4 Very Rare Moroccan Ammonite Atlas Mountains Fossil Bowls Marble Finish
Located in GB
We are delighted to offer this very rare original circa 180+ Million year old Atlas Mountains Morocco Fossil bowl polished to a marble finish
They a...
Category
Moroccan Other Antique 15th Century and Earlier Natural Specimens
Materials
Marble
Calcite on Amethyst Surrounded by Agate, White Quartz and Green Celadonite Stand
Located in London, GB
An interesting and stunning geode section with a striking colour mix.
In this aesthetic piece the original basalt has been polished to reveal the exquisite green celadonite hidden within on the front, whilst maintaining its rough condition at the back. Such a thick and vibrant celadonite layer is uncommon.
The interior of the mineral sculpture is endowed with a gorgeous very deep purple amethyst...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Rock Crystal Sculpture
Located in New York, NY
Rock crystal sculpture with stand, measures: 9”/L x 8.5/D x 5.5/H without stand.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Rock Crystal
Natural Rock Crystal Sculpture
Located in New York, NY
Natural rock crystal sculpture with base,
6 in x 7.5 x 6 in without base.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Rock Crystal
Amethyst Brown Druzy Quartz Stalactite Cluster Green Celadonite and White Quartz
Located in London, GB
An exquisite brown druzy quartz stalactite cluster.
The lower half of the geode is preserved, with the upper part removed to reveal the rar...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Quartz
Amethyst Black Druze Quartz or “Black Galaxy Amethyst” on Metal Stand Decor
Located in London, GB
An exquisite black amethyst druzy quartz cluster with polished stalactites.
Rare and notoriously difficult to find, this stunning and unique black amethyst druzy quartz, is known...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst, Quartz, Agate
Polished Geode Split in Two with Amethyst and Agate on Metal Stand
Located in London, GB
This stunning geode is split in two and displayed atop a stylish metal stand.
An impressive scope of textures and colours are found in this beautiful, fully polished piece, from ...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Rough Amethyst Calcite Formation Surrounded by Green Celadonite and White Quartz
Located in London, GB
In this piece, the rough amethyst's rich purple colouration is brilliantly pierced by the matt cream calcite formation that is bordered by a green celad...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Unusual Rotating Geode Slice with Amethyst Peaks and Calcite on Metal Stand
Located in London, GB
A stunning geode slice on a custom metal rotating stand. From the rough basalt on the outside, to the rich purple amethyst crystals inside and calcite formation, this piece presents ...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
1 of 4 Decorative Moroccan Ammonite Atlas Mountains Fossil Bowls Marble Finish
Located in GB
We are delighted to offer for sale this very decorative original circa 180+ Million year old Atlas Mountains Morocco Fossil bowl polished to a marble f...
Category
Moroccan Other Antique 15th Century and Earlier Natural Specimens
Materials
Marble
Stunning Purple Amethyst Stalactite Formations on Metal Stand
Located in London, GB
This stunning piece is a light violet/lilac amethyst with unique stalactite formations, presented as a mesmerising half geode on a stylish decorative metal stand. The edges of this b...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Natural Quartz Sculpture
Located in New York, NY
Natural Quartz, multicolored and white clusters of salt-like crystals growing out. Measures: 11” L x 9” D x 7.5” H without stand.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Half Amethyst Geode with Unusual Calcite Formation Inside and Hematite
Located in London, GB
This is an extraordinary half geode with a calcite formation.
This piece celebrates the visual phenomenon of the geode interior with some parts of the sculpture being rough basalt...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Petrified Incense Cedar Wood Fossil
Located in London, GB
This spectacular cross section of petrified cedar wood comes from Saddle Mountain, Washington. It is remarkably large with a wonderful and highly aesthetic shape, exhibiting vibrant ...
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Petrified Wood
Desert Rose Selenite Crystal Formation
Located in Miami, FL
‘Desert Rose’ selenite crystal
Formation desert roses are crystal clusters formed of gypsum barite and sand. It can take nature up to hundreds of th...
Category
African Prehistoric Antique 15th Century and Earlier Natural Specimens
Materials
Stone
Stunning Very Large Amethyst Cluster with Agate and White Quartz
Located in London, GB
This is an extraordinarily large half geode with a vibrant color. The interior of the piece reflects the beauty of a natural wonder, due to its intensely deep purple amethyst crystals.
The edges of the geodes have been polished, revealing a vibrant combination of grey/blue agate, pink jasper...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Quartz, Agate, Amethyst
High Quality Deep Purple Amethyst with Calcite Surrounded by Quartz and Hematite
Located in London, GB
A stunning deep purple amethyst piece with calcite formation. From the rough basalt on the outside, to the high quality rich purple amethyst crystals inside and calcite formation, th...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Beautiful Mix of Purple Amethyst Pink Druze and White Quartz Surrounded by Agate
Located in London, GB
Exquisite minerals fuse together in this uniquely beautiful combination of pinkish amethyst, white quartz and grey and brown agate on a custom metal stand. The natural sculpture rese...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Deep Purple Beautifully Shaped Amethyst Cluster with Stalactites on Metal Stand
Located in London, GB
Exquisite deep purple beautifully shaped amethyst aesthetic cluster with stalactites formation. Colours fuse together in this uniquely beautiful piece, presenting the viewer with pur...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Unusual Wide Amethyst / Red Druze Mineral Sculpture with Stalactites
Located in London, GB
Colors fuse together in this uniquely beautiful piece, presenting the viewer with purple amethyst mixed with red-orange Druze, creating a lovely combination.
The mineral sculpture...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst Smokey Druzy Quartz, Green Celadonite with Stalactites on Metal Stand
Located in London, GB
An exquisite light grey druzy quartz stalactite cluster with details in green celadonite and white quartz. This piece is very special due to it...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Circular Polished Amethyst Formation - Vibrant Mineral Art
Located in London, GB
An exquisite cut and polished partial amethyst geode with a circular shape. The front of the piece presents beautiful, vibrant, deep purple color amethyst with high peaked crystals. ...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Gem Grade Amethyst Geode Sculpture, Uruguay
Located in Los Angeles, CA
The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across the border into southern Brazil and are igneous (volcanic) in orig...
Category
Uruguayan Organic Modern Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst
Natural Rock Crystal Quartz Sculpture
Located in New York, NY
Natural rock crystal sculpture with stand. Billion year old natural quartz sculpture, with various sized crystals growing from the surface. Measures: 13.75”/ L x 6”/ D x 5.5”/ H with...
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Rock Crystal
White Quartz “Tree” Sculptural Formation on Metal Stand
Located in London, GB
A one of a kind, spectacular white quartz piece with a calcite formation. This piece is a stunning natural sculpture resembling a tree on a hill of white quartz. The prominent centra...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Quartz
Mounted Naturally-Formed Indian Mineral Clear Apophyllite
Located in Point Richmond, CA
Mounted naturally-formed Indian mineral: clear apophyllite
An attractive specimen that reflects the light similarly to a multifaceted gem giving the specimen an unusual brightness. ...
Category
Indian Other Antique 15th Century and Earlier Natural Specimens
Materials
Crystal
Rare Natural Quartz Sculpture
Located in New York, NY
Salt-like, light turquoise color natural quartz sculpture with stand. Measures: 8.5” /L x 6.5” /D x 7” /H without stand.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Amethyst Cluster, Grey and Pink Agate Border, Brown-Orange Druze and Stalactites
Located in London, GB
An exquisite deep purple amethyst cluster with mineral formation and a polished stalactite. This natural piece is surrounded and adorned with a beautiful polished border, where it is...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Gem Grade Amethyst Geode Sculpture
Located in Los Angeles, CA
Gem grade Amethyst Geode sculpture
The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across...
Category
Uruguayan Organic Modern Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst
Set of Three Prehistoric Ammonite
Located in Miami, FL
Set of three prehistoric ammonite fossil, unmounted.
Measurements:
Big amonite: Depth *4.5in Width *5.5in Height *1.6in
Medium amonite: Depth *4.1in Width *5.1in Height *1.6in...
Category
Prehistoric Antique 15th Century and Earlier Natural Specimens
Small Cluster of Amethyst Stalactite Formations - Mineral Display piece
Located in London, GB
This piece comprises a stunning example of deep purple amethyst, elegantly displayed on a metal stand, with a naturally decorative multiple stalactite formation.
The polished borders of the formation allow one to appreciate the visible grey and brown agate, green celadonite and pink jasper...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Natural Crystal Sculpture
Located in New York, NY
From the Oligocene (circa 30 million years ago), of a natural quartz with many layers growing onto each other. The sparkling crystals are salt-like, resembling the surface of the cor...
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Crystal
Large Leaf Fossil from the Green River Formation
Located in London, GB
A large and beautifully preserved fossilised leaf from the Green River formation, a site which has brought forth some of the best-preserved fossi...
Category
North American Antique 15th Century and Earlier Natural Specimens
Materials
Other
Naturally-Formed Mineral Specimen Peach Stilbite on Apophyllite Sculpture
Located in Point Richmond, CA
Naturally-Formed Mineral: Peach Stilbite on Apophyllite sculpture
A mineral specimen in the form of an abstract walking figure. Mounted on a custom t...
Category
Indian Other Antique 15th Century and Earlier Natural Specimens
Materials
Crystal
Petrified Wood Slice from Arizona
Located in London, GB
A large section of a petrified conifer tree trunk, (Araucarioxylon arizonicum) from Northern Arizona, dating to the Triassic period, circa 225 million years ago.
Over hundreds of m...
Category
American Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Gem Grade Amethyst Geode Sculpture, Uruguay
Located in Los Angeles, CA
The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across the border into southern Brazil and are igneous (volcanic) in orig...
Category
Uruguayan Organic Modern Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst, Rock Crystal, Quartz
Rare Natural Quartz Sculpture
Located in New York, NY
Salt-like, pinkish brown natural sculpture with copper on the surface. Polish brass stand. Measures: 11.5” /L x 7.5” /W x 5” /H.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Natural Amethyst Sculpture
Located in New York, NY
Natural amethyst crystal sculpture with multi peaks.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst
Large Pair of Rose Colored Cathedral Shaped Geodes
Located in Charleston, SC
Pair of 3" rose colored cathedral shaped geodes. Probably calcite, painted exterior.
Category
Unknown Antique 15th Century and Earlier Natural Specimens
Materials
Crystal
Rare Grayish Rock Crystal Sculpture
Located in New York, NY
Rare grayish rock crystal sculpture with multi peaks.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Rock Crystal
Gem grade, Amethyst Geode Sculpture
Located in Los Angeles, CA
Gem grade, Amethyst Geode Sculpture
The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across...
Category
Uruguayan Organic Modern Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst, Rock Crystal
Gem grade Amethyst Geode Sculpture, Uruguay
Located in Los Angeles, CA
The amethyst geodes from Uruguay are mined from the same rock formation as their relatives just to the north across the border into southern Brazil and are igneous (volcanic) in orig...
Category
Uruguayan Organic Modern Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst, Quartz, Rock Crystal
Petrified Wood Specimen
Located in Somis, CA
A fantastic petrified wood specimen. Original petrified bark on one side, polished interior of tree on the other. All original. 3 lb.
Category
Indonesian Antique 15th Century and Earlier Natural Specimens
Materials
Petrified Wood
Rare Large Amber Quartz Rock Crystal Ball
Located in New York, NY
Rare, large translucent amber rock crystal ball with beautiful veins.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Rock Crystal
Natural Amethyst Crystal Sculpture
Located in New York, NY
Natural amethyst crystal sculpture with multi peaks.
Category
Antique 15th Century and Earlier Natural Specimens
Materials
Amethyst
Naturally Formed Mineral Peach Stilbite on Apophyllite Sculpture
Located in Point Richmond, CA
Naturally formed mineral peach stilbite on apophyllite sculpture
A mineral specimen in the form of an abstract walking figure. Mounted on a custom walnut and satin nickel painted ba...
Category
Indian Other Antique 15th Century and Earlier Natural Specimens
Materials
Crystal
Limestone Stalactite
Located in London, GB
A limestone stalactite, South-Western France.
Category
Antique 15th Century and Earlier Natural Specimens
Natural Quartz Geode Decorative Object
Located in Marbella, ES
Natural Quartz Geode Decorative Object
Category
European Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Natural Quartz Geode Decorative Object
Located in Marbella, ES
Natural Quartz Geode Decorative Object
Category
European Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Natural Quartz Geode Decorative Object
Located in Marbella, ES
Natural Quartz Geode Decorative Object
Category
European Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Natural Quartz Geode Decorative Object
Located in Marbella, ES
Natural Quartz Geode Decorative Object
Category
European Antique 15th Century and Earlier Natural Specimens
Materials
Quartz
Moldavite From the Czech Republic // 1.21 Grams
Located in New York, NY
This genuine moldavite in stellar condition offers a luminous green color and fascinating natural texture, making it an overall great specimen. Moldavite is one of the most sought af...
Category
Czech Antique 15th Century and Earlier Natural Specimens
Materials
Other
Tree Agate Sculpture on Stand, Brazil, Prehistoric
Located in New York, NY
Brazilian tree agate mounted on stand
"Tree agate is also known as dendritic agate. Dendrites are crystal inclusions
that develop in foliage or tree branch-like patterns."
"Tree-...
Category
Brazilian Antique 15th Century and Earlier Natural Specimens
Materials
Agate
Small Geode with Brown Druzy Stalactites
Located in London, GB
This small geode reveals a large number of stalactites in various growth
stages, covered in a layer of brown sparkling druze. The borders polished.
This piece was legally and eth...
Category
Uruguayan Antique 15th Century and Earlier Natural Specimens
Materials
Agate, Amethyst, Quartz
Azurite on Custom Made Metal Base
Located in BAARN, UT
Azurite is a copper carbonate, usually found in combination with other copper minerals such as its much better known green brother malachite.
The mineral is full blue in color and is virtually opaque with a silky sheen.
Azurite usually forms in oxidation zones of copper deposits, where secondary to malachite other minerals such as chrysocolla and naturally solid copper can...
Category
Congolese Antique 15th Century and Earlier Natural Specimens
Materials
Other
Agate Slice on Metal Base
Located in BAARN, UT
The slice is 2cm thick.
Agate is a largely translucent and variety of quartz and subvariety of chalcedony.
Agate consists mainly of chalcedony and sometimes in combination with v...
Category
Brazilian Antique 15th Century and Earlier Natural Specimens
Materials
Other
Crystal Center Thin Slice Agate Sculpture, Brazil, Prehistoric
Located in New York, NY
Brazilian thin slice of agate mounted on a custom steel stand.
Agate is a banded form of finely-grained, microcrystalline Quartz.
The lovely color patterns and banding make this t...
Category
Brazilian Antique 15th Century and Earlier Natural Specimens
Materials
Agate
Moroccan Crinoid Fossil about 450 Million Years Old
Located in Chicago, IL
Moroccan fossil named Crinoid, which are about 450 million years old. Crinoid fossils, or sea lilies are members of the Echinodermata phylum. Our Crinoi...
Category
Moroccan Antique 15th Century and Earlier Natural Specimens
Materials
Stone
