The term "Zat"

The term “Zat” -
Is that a term specific to turquoise? What quality does it indicate? Is it a specific quality like translucence or is it an over all quality?

I am thinking it means something like it is all that. The stone stands alone, no matter what is said the stone looks gorgeous. I had never heard the term before that thread.

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“zat + turquoise” search results

seems to be along the same lines of sparkle, luster, gemmy in terms of ranking speak

source : https://books.google.com/books?id=gRkkACkgN2AC&pg=PA190&lpg=PA190&dq=zat+turquoise&source=bl&ots=efmdm8ebzj&sig=ACfU3U2kl0DBhJZw0xIq27POU89Ny_yumw&hl=en&sa=X&ved=2ahUKEwiXoKyL_P32AhV2j4kEHSJPD0MQ6AF6BAguEAM#v=onepage&q=zat%20turquoise&f=false

Turquoise By Joe Dan Lowry page 190

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It’s about subjective experience rather than mineralogical facts. I bet that a given stone would be said to have zat by viewer A, but maybe not viewer B. I’ve wondered if it’s in fact a made-up, Arabic-sounding term for the American turquoise market, which took off in the 60s and 70s: does the word appear anywhere in US publications earlier than that? I must research.

So it’s a way to express that a turquoise stone has unusual beauty, pizzazz, and even mystical, in the sense of being especially captivating to the viewer.

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Persian roots

source: https://www.researchgate.net/publication/322465744_Turquoise_Grading_in_Persian_historical_and_modern_times_a_comparative_study

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@Steve Excellent! There we are. So, not made up but rather imported from the Persian trade, though that region’s aesthetics regarding turquoise differ dramatically from the US. Their zat wouldn’t include matrixed stones, for ex.

I’d still like to know how far back in US usage it goes; better check my Pogue (Turquois).

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And here I thought it was slang for “that”. As in, that indescribable quality.

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Thanks for researching this!

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team effort and we all learnt something today!

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I think it is used as slang in that context in things besides jewelery, at least I’ve heard it used so.

Interesting where words come from.

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Here’s a slang version …

:person_shrugging::person_facepalming:

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