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AMMOLITE FROM CANADA

This is a natural  untreated stone  from  Canada that  is now ready for polishing or it can be kept as a specimen.We have taken the  photo with the stone wet.

Weight 13 cts app

Size 25x 17x4.2 mm app

Ammolite is a rare and valuable opal-like organic gemstone found primarily along the eastern slopes of the Rocky Mountains of the United States and Canada. It is made of the fossilized shells of ammonites, which in turn are composed primarily of aragonite, the same mineralthat makes up nacreous pearls.

An iridescent opal-like play of color is shown in fine specimens, mostly in shades of green and red; all the spectral colors are possible, however. The iridescence is due to the microstructure of the aragonite: unlike most other gems, whose colors come from light absorption, the iridescent color of ammolite comes from interference with the light that rebounds from stacked layers of thin platelets that make up the aragonite. The thicker the layers, the more reds and greens are produced; the thinner the layers, the more blues and violets predominate. Reds and greens are the most commonly seen colors, owing to the greater fragility of the finer layers responsible for the blues.

Treatments Although fully mineralized and containing no water—and therefore not subject to dehydration and subsequent crazing—ammolite is often damaged due to environmental exposure. The thin, delicate sheets in which ammolite occurs are also problematic; for these reasons, most material is impregnated with a clear epoxy or other synthetic resin to stabilize the flake-prone ammolite prior to cutting. Although the tessellated cracking cannot be repaired, the epoxy prevents further flaking and helps protect the relatively soft surface from scratching.

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ONE ITEM
Our basic shipping /handling fee is $3.00 per item sent first class airmail.
FOUR ITEMS
We offer a combine shipping/handling of 4 items from the one site for $9-this is done automatically when you go to paypal.
EIGHT ITEMS
You must have 5 feed backs and contact us before bidding and we will send you a paypal request with a handling/shipping fee of $15
EIGHT TO 30 ITEMS
You must have 10 feedbacks to purchase larger numbers and contact us before bidding.We will send this parcel by courier express with a tracking number for $45
. MONEY BACK GUARANTEE -NO QUESTIONS ASKED,PREFER PAYPAL SEND MONEY TO sedaopals@hotmail.com

PLEASE NOTE-We have the following sites listed  below so if you pay insurance for one site we can send all the orders to gether so only pay insurance once. There is still the handling fee per item of $3.00

.At www.opalauctions.com we have the following sites
SEDAOPAL-,BOULDER MAGIC-PETERS OPAL-QUALITY OPALS-SEDA ROUGH OPAL,-VOLCANIC OPALS.
At www.gemrockauctions.com we have the following sites
SEDAGEMS-MINERALGEMWORLD-GEMS TO WEAR

 

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