Extremely Rare Natural Fossil Coral Egg, Australia, 923.25 ct- 184.65 g
The Very Rare Fossil Corals are a natural type of gemstone fossils formed from fossil corals. The proper name for fossil corals is "Agate Coral" or "Agate Fossil Coral" because the coral remains are gradually replaced by agate, a type of naturally occurring chalcedony or microcrystalline quartz, during formation. When prehistoric corals are fossilized by replacement with agate, the fossil corals are formed by hardened deposits left by silicon-rich waters.
Fossil corals are formed by the process of replacement, where calcium carbonate (coral) is replaced by silica. This unique preservation process can result in varying mineral concentrations from specimen to specimen. Silica can range from light, amorphous opal to dense form of chalcedony. Therefore, fossil coral specimens can have slightly different densities depending on the exact mineral concentration.
Agate fossil corals can exhibit a wide range of natural colors, ranging from white and pink to brown, gray, black, yellow and red. Coral color can vary greatly within a single stone depending on weathering, oxidation and the original mineral content.
Stone: Extremely Rare AAA+++ Fossil Coral Egg
Weight: 923. 25 ct
Size: 62x47x47 mm
Treatment: None
Origin: Australia
The lots were photographed under professional lights. Please note that the colors might differ depending on the monitor settings and light source.
Our shipping costs are checked and recognized by Catawiki.
We have an external shipping company that takes care of the final inspection, collection, packaging and delivery
carry out shipping; This is how these shipping costs arise.
Buyer bears all possible import and export costs, customs fees, shipping costs, etc.
See also our other items and shipping costs, save on collection costs.
In some of the pictures the stone has been x-rayed to show you the color of the stone.
For some stones we have placed a light under the stone to better show the color of the pieces. And this can lead to deviations in the colors etc. , as every computer, monitor and cell phone CAN show different qualities of the colors
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The Very Rare Fossil Corals are a natural type of gemstone fossils formed from fossil corals. The proper name for fossil corals is "Agate Coral" or "Agate Fossil Coral" because the coral remains are gradually replaced by agate, a type of naturally occurring chalcedony or microcrystalline quartz, during formation. When prehistoric corals are fossilized by replacement with agate, the fossil corals are formed by hardened deposits left by silicon-rich waters.
Fossil corals are formed by the process of replacement, where calcium carbonate (coral) is replaced by silica. This unique preservation process can result in varying mineral concentrations from specimen to specimen. Silica can range from light, amorphous opal to dense form of chalcedony. Therefore, fossil coral specimens can have slightly different densities depending on the exact mineral concentration.
Agate fossil corals can exhibit a wide range of natural colors, ranging from white and pink to brown, gray, black, yellow and red. Coral color can vary greatly within a single stone depending on weathering, oxidation and the original mineral content.
Stone: Extremely Rare AAA+++ Fossil Coral Egg
Weight: 923. 25 ct
Size: 62x47x47 mm
Treatment: None
Origin: Australia
The lots were photographed under professional lights. Please note that the colors might differ depending on the monitor settings and light source.
Our shipping costs are checked and recognized by Catawiki.
We have an external shipping company that takes care of the final inspection, collection, packaging and delivery
carry out shipping; This is how these shipping costs arise.
Buyer bears all possible import and export costs, customs fees, shipping costs, etc.
See also our other items and shipping costs, save on collection costs.
In some of the pictures the stone has been x-rayed to show you the color of the stone.
For some stones we have placed a light under the stone to better show the color of the pieces. And this can lead to deviations in the colors etc. , as every computer, monitor and cell phone CAN show different qualities of the colors
Sale price
Estimate
Time, Location
Auction House
