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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
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
Large Amethyst Chapel
Located in London, GB
This large amethyst chapel, a complete half of the original geode, shows
deep purple amethyst crystals punctuated with small stalactites and overlaid
...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Large amethyst chapel with calcite and stalactites
Located in London, GB
Another large amethyst chapel, the corresponding half of the original geode,
showing deep purple amethyst crystals punctuated with small stalacti...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Exceptional Quality Amethyst in a Jaw like Formation
Located in London, GB
Amethyst of the deepest colour is shown here in a formation resembling
an open mouth. The crystals are of high peaks with red tints toward the
tips. the borders unpolished to revea...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Egg Shaped Amethyst Geode with Calcite
Located in London, GB
A beautiful mostly complete egg shaped geode with a prominent calcite
to the left, partially polished. The amethyst crystals with high peaks and
of intense purple. The thick amethy...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
White Quartz Stalactite Formation
Located in London, GB
This substantial formation consists of prominent white quartz crystals
with a slight green tinge, laid over a bed of undulating stalactites. A small
hon...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
High Quality Amethyst Goethite Inclusions Resembling Rosettes
Located in London, GB
An unusual piece of high quality deep purple amethyst with large peaked
crystals. Inside the amethyst multiple goethite crystals resembling rosettes
can be seen. Several of the cry...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Unusual Organic Green-Blue Quartz Cluster
Located in London, GB
Multiple stalactites seemingly grow from a grassy meadow of green quartz
on this impressive piece. A wonderful sculptural specimen with a rare organic
quality.
This piece was le...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Lilac Amethyst Formation with Central Rosette
Located in London, GB
A large bowl shaped piece formed of small lilac amethyst crystals with a
stunning central honey coloured calcite formation resembling a rosette.
At the base of the calcite pink...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Bellowing Smoke Quartz Cloud Formation
Located in London, GB
A beautiful formation of of several stalactites covered in a thick border of
white quartz. The thick quartz bordered itself covered in transparent and
brown druze in places. The wh...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Large Amethyst Formation with Calcite Towers
Located in London, GB
Two calcite “towers” grace the centre of this impressive piece, which also
has large peaked amethyst crystals and quartz and goethite covered calcites.
The exterior has been kept i...
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
Blue Agate Pyramidal Cave Formation with Druze
Located in London, GB
A beautiful pyramidal formation with thick border of blue banded agate.
The central cavity resembling a cave with a floor of druzy quartz and calcite
crystals. Nascent stalactites ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Wonderful Calcite with Epitaxial Goethite
Located in London, GB
This stunning formation consists of a large pyramidal calcite on a bed of
deep purple amethyst. The split calcite with unusual epitaxial goethite
and a second generation of amethys...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Geode Section with Rare Amethyst Formation and Intense Green Shell
Located in London, GB
This striking section cut from the centre of a geode, contains an unusual formation of calcite with a blanket of amethyst crystals. The borders are polished to reveal the beautiful c...
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
Triangular Geode Section with Perched Calcite
Located in London, GB
A beautiful triangular geode section in lilac amethyst with a gold coloured
calcite perched on a bed of red druzy quartz.
This piece was legally and ethically sourced directly in...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Treasure Chest Borwn Druze, Polished Celadonite Border and Calcite Formation
Located in London, GB
A wonderful formation with abundant agatized exterior polished to reveal
the different mineral layers and the interior with a lining of brown drize
over various stalactites with a ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Ametrine and Finger like Calcites
Located in London, GB
A spectacular amethyst cluster with two sets of unusual finger-like calcite
crystals on a bed of druzy quartz. The formation is a pleasing dark purple
colour with large peaks and i...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Double Windowed Amethyst Geode with Agatised Borders and Rare Calcite Formation
Located in London, GB
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 quar...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Exceptional Heart Shaped Formation with Icy Calcites
Located in London, GB
A stunning heart-shaped amethyst formation with a central rocket-shaped
calcite covered with a blanket of amethystine quartz and black goethite.
To the left an icy calcite covered ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
White Quartz Cluster with Honey Coloured Calcites
Located in London, GB
A substantial formation with a thick lining of large white quartz crystals
that contrast beautifully with the two honey coloured calcites ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Complex Natural Geode Slice with Amethyst and Quartz
Located in London, GB
This large and thick slice preserves a complex arrangement of two interlocking
geodes, one with a citrine-like orange quartz and another with
deep purple amethyst. The exterior gre...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Geode Heart with Rare Formations and Double Colour Crystals Amethyst and Quartz
Located in London, GB
From the “heart” of a large geode, this specimen shows various crystal
formations of note. The multi-windowed piece shows amethyst in typical
peaked form as well as stellate white quartz formations...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Deep Purple Amethyst with Calcite and Polished Agate
Located in London, GB
Stunning geode cluster of an intense deep purple colour amethyst crystals. A big calcite stand-out from the crystals, covered with a blanket of black hematite.
This piece was lega...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Monumental dynamic split geode
Located in London, GB
A very large split geode, the interior graced with the finest quality deep purple Uruguayan amethyst. The amethyst-lined stalactite walls of the ge...
Category
Antique 15th Century and Earlier Uruguayan 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
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Small Orange Tinted Druzy Quartz Formation
Located in London, GB
Several small stalactites adorn this piece, covered in light orange druzy quartz.
This piece was legally and ethically sourced directly in the prestigi...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Small Formation of Clear Quartz on Thick Agate
Located in London, GB
Several small stalactites adorn this piece, covered in light orange druzy quartz.
This piece was legally and ethically sourced directly in the prestigious mines of Uruguay, South ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Frosty Agatised Amethyst Cluster with Polished Exterior
Located in London, GB
A beautiful amethyst cluster with polished borders revealing multiple agatised
layers. The interior of this specimen has a wonderful frosty appearance with
purple amethyst, creamy ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Large Deep Spherical Amethyst Geode
Located in London, GB
A wonderful and substantial spherical geode is shown here, with deep purple
amethyst crystals enveloping a central calcite. A quintessential geode and a
striking display piece.
...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Pear Shaped Amethystine Geode Section with Thick Border
Located in London, GB
This beautiful half geode has a wonderful blue-brown banded agate border
with a thick base of white quartz differentiating to deep amethyst at the tips.
A small section of orange ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Exceptional “Excalibur” Amethyst Formation, Calcite, Agate, Quartz
Located in London, GB
With its extremely unusual central amethyst epimorph after calcite, this natural
wonder evokes images of the legendary sword, Excalibur, magically fixed in
the stone. Elsewhere we ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
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
Thick Deep Purple Slice with Snowballs
Located in London, GB
This striking circular slice preserves the end of a large geode. Lined with deep
purple, high peaked amethyst crystals, this wonderful piece is punctuated with
small calcites overl...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Other Worldly Landscape with Grey-Lilac Druze
Located in London, GB
A stunning half geode containing many tall stalactites resembling an other
worldly landscape. The stalactites covered in grey-lilac druzy quartz. the borders
polished.
This piec...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Large Peaked Pink Quartz Amethyst Formation
Located in London, GB
A stunning piece of pinkish-lilac amethyst. Its very large peaks are accentuated
by the beautiful graduated colour, intensifying towards the tips of each crystal.
Various crystals ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst Section with Cut Stalactite Eye and Calcite
Located in London, GB
A beautiful oval shaped amethyst section with deep purple amethyst and two
cut amethyst eyes near the centre. A small calcite to the right completes the
composition.
This piece ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethystine Black Galaxy Landscape Formation
Located in London, GB
An exceptional formation resembling an other-worldly landscape. This spherical
geode has been exposed to reveal a gorgeous amethystine quartz interior, the
tinted stalactites resem...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Egg Shaped Polished Organic Geode Quartz/Druze Section
Located in London, GB
This gorgeous geode section is egg-shaped in form, with a beautiful field of
grass like green druzy stalactites and several larger cut stalactite “ey...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst Mineral Sculpture with High Crystal Peaks on Metal Stand
Located in London, GB
A stunning deep purple amethyst cluster with unusually high peaked crystals on metal stand. The polished frame shows mineral layers developing from the rough basalt, to the grey/blue...
Category
Antique 15th Century and Earlier South American Natural Specimens
Materials
Agate, Amethyst, Quartz
Deep Purple Amethyst Cluster with Calcite Surrounded by Agate
Located in London, GB
An interesting and stunning amethyst cluster with a striking mineral and colour mix.
In this aesthetic piece the edges have been polished to reveal layers of a vibrant green celadonite, blue-grey agate and white quartz, which frame the intense purple colour of the amethyst.
The interior of the mineral sculpture is endowed with a gorgeous very deep purple amethyst...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Steel Colored Heart Shaped Open Quartz Geode
Located in London, GB
This open geode is lined with steel coloured quartz and embelished with a large central calite covered with tan coloured amethystine quartz. Several other calcites to the side.
Di...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Heart Shaped Amethyst Formation with Central Stalactite "EYE" and Agate Border
Located in London, GB
This natural piece is surrounded and adorned with a beautiful polished border, where one can see the mineral layers developing from the rough basalt, to the grey/blue agate, white qu...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Rare Unusual Mineral Formation of Grey Druze and White Quartz
Located in London, GB
An unusual mineral formation of organic appearance. This piece is composed of light grey to green druze, with beautiful multiple stalactite formatio...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst calcite and black epitaxial goethite - a rare stone formation
Located in London, GB
A stunning amethyst formation formed of a three quarter geode with cut window, revealing deep purple amethyst crystals, with a beautiful central calcite coated in black goethite and ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Dreamy Geode End Cut Resembling Murano Glass Crystal Mineral Slice
Located in London, GB
This beautiful end cut of a geode resembles a piece of Murano glass. Greenish colours, punctuated by cut stalactite "eyes" blur into orange areas and create a wonderful aesthetic. A ...
Category
Antique 15th Century and Earlier South American Natural Specimens
Materials
Agate, Amethyst, Quartz
Rare Tabletop Amethyst Formation with Calcite Goethite & Quartz
Located in London, GB
A very rare and exquisite table-top amethyst formation. The long fromation preserves a prominent golden calcite crystal on a bed of deep purple amethyst and is particularly sculptura...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Small Orange, Tan Druzy Quartz Stalactite Formation Resembling a Scholars Rock
Located in London, GB
A small piece preserving a beautiful stalactite covered in orange-tan druzy quartz. The lower edges polished to reveal a relatively thick celadonite shell.
Measures: Dimensions of...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst Crystal Cluster with Exceptional Calcite Formation, Mineral Art
Located in London, GB
An incredible amethyst formation with central calcite "arch" and calcite spear.
Two special calcite formations are shown here; the first is a beautiful arch covered with a blanket...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Amethyst quartz slice resempling murano glass / psychedelic colors
Located in London, GB
A spectacular large slice of amethystine quartz with green celadonite and orange citrine inclusions.
A beautiful oval slice expertly cut from a geode and polished on its facing si...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Geode with deep purple amethyst crystals, a central stalactite and agate borders
Located in London, GB
A stunning spherical shaped geode of a deep purple amethyst. The piece is of a wonderful example of a three dimensional geode with particularly thick agate border, revealing grey aga...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Rare Tabletop Amethyst Formation with Calcites Goethite & Quartz
Located in London, GB
A very rare and exquisite table-top amethyst formation. The long formation preserves prominent golden calcites crystal on a bed of deep purple amethyst and is particularly sculptural...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Beautiful Intense Brown Druze Amethyst Cluster with Green Jasper
Located in London, GB
A stunning intense brown amethyst druze formation with stalactites.
The mineral sculpture is embellished by multiple stalactite formations, and gives the sensation of movement due ...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Small Bluish-Grey Quartz with Cut Stalactite
Located in London, GB
A pleasing small display piece showcasing bluish druzy quartz covering a stalactite, which is cut and polished at the tip to reveal the floral interior structure.
This piece was l...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Coral like Round Geode with Polished Borders
Located in London, GB
Beautiful green-grey coral-like stalactites emerge from the interior lining of this
round geode. The borders polished to reveal the celdonite shell with the exterior
basalt still v...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Quartz
Amethyst Cluster and White Quartz
Located in London, GB
A pleasing crescentic section of quartz with agate areas, surrounding a beautiful vibrant streak of deep purple amethyst.
This crescentic medium sized section has a wonderful thick white quartz...
Category
Antique 15th Century and Earlier Uruguayan 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
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
Polished Split Amethyst Geode Surrounded by White Quartz and Agate
Located in London, GB
Polished to a breath-taking finish and presented on an artistic wooden stand, this unique and beautiful piece displays a half geode. The edges of the geodes have been polished reveal...
Category
Antique 15th Century and Earlier Uruguayan Natural Specimens
Materials
Agate, Amethyst, Quartz
