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$59.00
Current Bid
19
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Closed
30/10/2018 04:05 pm
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370 CTS IRRIDESENT AMMONITE PARCEL FROM MADAGASCAR MGW3160-4

SKU
Dimensions (mm)
40.000 x 32.000 x 12.000mm
Weight (cts)
370.000
Treatment
No Treatment
Type
Rough, Specimen
Colours

MINERAL GEM WORLD

IRRIDESENT AMMONITE

PARCEL

This is a parcel of colourful natural untreated specimens of ammonite from Madgascar - Africa.

We have taken the photo of the specimens wet as it brings out the opal

like irridesent colour.

Weight of parcel 370.00 cts app

size of largest piece 40 x 32 x 12 mm app

Ideal as a specimen or it can be made into jewelery

Ammonites, as they pertain specifically to the order Ammonitida, are an extinct group of marine animals belonging to the cephalopod subclass Ammonoidea. They are excellent index fossils, and it is often possible to link the rock layer in which they are found to specific geological time periods.

The closest living relative of the Ammonitida, is not the modern Nautilus which they somewhat outwardly resemble, but rather the subclass Coleoidea (octopus, squid, and cuttlefish).

Their fossil shells usually take the form of planispirals, although there were some helically-spiraled and non-spiraled forms (known as “heteromorphs”). Their name came from their spiral shape as their fossilized shells somewhat resemble tightly-coiled rams’ horns. 

 

 

 

Other fossils, such as many found in Madagascar and Alberta (Canada), display iridescence. These iridescent ammonites are often of gem quality (ammolite) when polished. In no case would this iridescence have been visible during the animal’s life; additional shell layers covered it.

Ammonite fossils became less abundant during the latter part of the Mesozoic, with none surviving into the Cenozoic era. The last surviving lines disappeared along with the dinosaurs 65 million years ago in the Cretaceous-Tertiary extinction  event. That no ammonites survived the extinction event at the end of the Cretaceous, while some nautiloid cousins survived, might be due to differences in ontogeny. If their extinction was due to a bolide strike, plankton around the globe could have been severely diminished, thereby dooming ammonite reproduction during its planktonic stage.

 

Shipping provider Shipping to Australia Shipping to rest of world
FedEx $12.00 / 3 days $39.00 / 10 days
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Rest of the world
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Registered Shipping $9.00 / 7 days $16.00 / 21 days
Australia
Registered Shipping is discounted to $9.00 on orders with 2 or more items
Rest of the world
Registered Shipping is discounted to $16.00 on orders with 2 or more items

mineralgemworld
mineralgemworld
MEMBER OF THE [ICA]  INTERNATIONAL COLOURED STONE ASSOCIATION AND PRESIDENT OF THE OPAL ASSOCIATION. We have a retail shop/museum at the Gold Coast Opal and Gem Centre 25 surfers av mermaid waters Qld Australia .4218 open mon to sat 10 to 5
Surfers Paradise, Australia
Verified
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Bids History (19)
sfitz
Purchased from this seller previously
5 years ago
$58.00
sharney71
Purchased from this seller previously
5 years ago
Automated Bid
$57.00
sharney71
Purchased from this seller previously
5 years ago
Automated Bid
$51.00
sfitz
Purchased from this seller previously
5 years ago
$50.00
sharney71
Purchased from this seller previously
5 years ago
Automated Bid
$46.00
sfitz
Purchased from this seller previously
5 years ago
$45.00
sharney71
Purchased from this seller previously
5 years ago
$41.00
sfitz
Purchased from this seller previously
5 years ago
Automated Bid
$40.00
sfitz
Purchased from this seller previously
5 years ago
Automated Bid
$36.00
samrue
Purchased from this seller previously
5 years ago
$35.00
sfitz
Purchased from this seller previously
5 years ago
$34.00
wandaf
Purchased from this seller previously
5 years ago
Automated Bid
$33.00
wandaf
Purchased from this seller previously
5 years ago
Automated Bid
$31.00
sfitz
Purchased from this seller previously
5 years ago
$30.00
wandaf
Purchased from this seller previously
5 years ago
$23.00
sharney71
Purchased from this seller previously
5 years ago
Automated Bid
$22.00
sharney71
Purchased from this seller previously
5 years ago
$12.00
wandaf
Purchased from this seller previously
5 years ago
Automated Bid
$11.00
wandaf
Purchased from this seller previously
5 years ago
$1.00

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Shipping Details

Shipping:
$16.00 21 days via Registered Shipping
Ships from:
Australia

Payment Options

  • paypal
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This seller adds 10.00% tax to transactions in Australia.

Overview

Listing Type : Standard
Product ID : 813790
Starting Bid : $1
Starts : 3rd October 2018 09:03 am AEST
Ends : 31st October 2018 09:05 am AEST
* All prices are in USD