Jun 9, 2012 10:07
11 yrs ago
English term
consistency
English
Other
Mining & Minerals / Gems
tanzanite
The treating of gemstones is a common and accepted practice throughout the industry but the cause of much debate.
The majority of ruby and sapphire’s are aggressively heat-treated at extreme temperatures, improving both color and clarity but resulting in both molecular structure and chemical composition changes.
In practice, because of these very high temperatures, heat-treatment can only be detected **with any consistency in corundum**.
Virtually all tanzanite found on the market has been subjected to some form of heating, albeit at a relatively low temperature, to complete what is recognized as a natural process which nature itself would have brought about in geological time.
The resulting color is both permanent and stable.
consistency? Does it mean purity? What does the whole sentence mean? The third sentence (heat-treatment can only be detected with any consistency in corundum.) is confusing to me. Would you please explain or rephrase it? Might be an easy question for native English speakers. Thanks in advance!
The majority of ruby and sapphire’s are aggressively heat-treated at extreme temperatures, improving both color and clarity but resulting in both molecular structure and chemical composition changes.
In practice, because of these very high temperatures, heat-treatment can only be detected **with any consistency in corundum**.
Virtually all tanzanite found on the market has been subjected to some form of heating, albeit at a relatively low temperature, to complete what is recognized as a natural process which nature itself would have brought about in geological time.
The resulting color is both permanent and stable.
consistency? Does it mean purity? What does the whole sentence mean? The third sentence (heat-treatment can only be detected with any consistency in corundum.) is confusing to me. Would you please explain or rephrase it? Might be an easy question for native English speakers. Thanks in advance!
Responses
| 3 +1 | reliability |
Armorel Young
|
| 5 | corundums are predominately heat treated |
airmailrpl
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| 4 +1 | reliability |
Charles Davis
|
Responses
+1
16 mins
Selected
reliability
This seems to be about identifying whether or not gemstones have been heat treated. It would seem that it is not always possible to tell (detect) whether heat treatment has been applied; the only gems that it is possible to inspect or analyse for heat treatment with consistently reliable results are corundum.
To paraphrase: In practice, because of these very high temperatures, only in corundum is it possible to reliably detect whether heat treatment has been used.
Consistently means that accurate results are always obtained (rather than the results being sometimes right and sometimes wrong).
To paraphrase: In practice, because of these very high temperatures, only in corundum is it possible to reliably detect whether heat treatment has been used.
Consistently means that accurate results are always obtained (rather than the results being sometimes right and sometimes wrong).
Note from asker:
| Thanks for your clear and helpful explanations! |
4 KudoZ points awarded for this answer.
Comment: "thanks!"
9 mins
airmailrpl
Brazil
Brazil
Native in English
&
English
Specializes in field
Brazil
Technical - Fast - good price - accurate
Native in: English (Variant: US) 
, Portuguese (Variant: Brazilian)
Works in: English to Portuguese, Portuguese to English, English, and 1 more.
Related KudoZ points
:
4
corundums are predominately heat treated
it means that heat treatments in corundum is very widely used and thus it is easier to detect - especially because of the high temperatures used.
Heat treatment in Tanzanite or aquamarine is not easy to detect and they are heated to much lower temperatures not resulting in molecular structure changes
corundums are predominately heat treated - in fact a "no heat" corundum is sold at a higher price because it is much rarer.
Heat treatment in Tanzanite or aquamarine is not easy to detect and they are heated to much lower temperatures not resulting in molecular structure changes
corundums are predominately heat treated - in fact a "no heat" corundum is sold at a higher price because it is much rarer.
+1
10 mins
reliability
"With any consistency" refers to "detected". It means that in other gemstones heat treatment cannot be consistently detected by examining or analysing the stone that has been treated; the results of such an examination do not provide consistent or reliable evidence of whether the stone has been treated or not. This is because a very high temperature has been used. Corundum is the exception; when you examine it, even though high temperature has been used, you can consistently or reliably detect the treatment. But only in corundum is this consistent detection possible, not in other gemstones.
The sense of "consistently" is really that all or most cases are detected.
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Note added at 19 mins (2012-06-09 10:26:56 GMT)
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The sense of "consistency" is as I have said, but my comments on temperature are not correct. High temperature makes the treatment easier to detect, not more difficult. So treatment can only be reliably detected in corundum (which includes rubies and sapphires) because of the high temperatures, which produce the detectable changes referred to in your text. Where lower temperatures have been used, as in other gemstones, the treatment cannot be consistently (reliably) detected.
The sense of "consistently" is really that all or most cases are detected.
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Note added at 19 mins (2012-06-09 10:26:56 GMT)
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The sense of "consistency" is as I have said, but my comments on temperature are not correct. High temperature makes the treatment easier to detect, not more difficult. So treatment can only be reliably detected in corundum (which includes rubies and sapphires) because of the high temperatures, which produce the detectable changes referred to in your text. Where lower temperatures have been used, as in other gemstones, the treatment cannot be consistently (reliably) detected.
Peer comment(s):
| agree |
lorenab23
: Absolutely! Happy Weekend Carlitos, un abrazo
4 hrs
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Thank you so much, Lorenita ;)
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Discussion