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Home / Glossary Term / Forbidden Zone

Forbidden Zone

Relatively large energy separation between an insulator’s highest filled electron energy band and the next higher energy vacant band.

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Testimonials

Rudolph

L.

Meteorite for Young Enthusiast

In response to my request for guidance regarding a meteorite fragment suitable for my 11 yo grandson's incipient collection, Mr. Ouzillou provided thoughtful guidance leading to his provision of a Sikhote Alin fragment, along with a brief history of its provenance. A very knowledgeable, patient and helpful guide. My grandson's response: '....it feels really awesome and I love how it looks.'

Rudolph L.,

08/29/2020

Paula

L. / Lund University - Dept. of Geology

Knowledgeable and helpful

Mendy is very knowledgeable and helpful. He has an impressive selection of meteorite samples and my purchases from SkyFall Meteorites have been incredibly valuable for my research. Paula L. [183] Lund University - Dept. of Geology

Steve

D.

Always the best from SkyFall

I've had the pleasure of buying from Mendy for almost three years now. I am always impressed with the variety, rarity, and quality of his specimens. He has consistently gone out of his way to provide me with information, advice, advanced heads up on new inventory, and finding specific specimens i've requested. His specimens are always perfectly packed and shipped and include all available provenance. Some of my finest collection pieces have come from SkyFall, and I look forward to many more.

Steve D. [183]

Stefan

B.

Meteorites of best quality

High quality meteorites for a good price and a very fast delivery. Very recommended!

Calvin

S.

Rare Ataxite

I recently bought a Hoba partial slice from SkyFall Meteorites that originally came from the Jim Schwade collection. This was metal, not shale- a very important distinction. Not only was this very old sample curated in quite good condition, but its provenance is well published. That is important for verifying the solid integrity of a meteorite whose importance is its place within the history of our planet and society at large. This sample will no doubt make an excellent example in future educational talks. Thank you Mendy.

Mike

W

Thank you very much for the Odessa

Hi Mendy, Wow! Very nice Odessa Iron. I wanted to say that this piece will be the center of my collection (at least for a while, eh.) I am very happy with it. The experience was very pleasant. I hope to do business with you again soon.

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