Precious Stones - For Jewelers and the GEM-Loving Public

Precious Stones - For Jewelers and the GEM-Loving Public

5.0 1
by Irwing
     
 
Precious Stones - For Jewelers and the GEM-Loving Public

...Precious Stones Distinguished by their Properties. One precious stone is best distinguished from another just as substances of other types are distinguished, that is to say, by their properties. For example, salt and sugar are both white, both are soluble in water, and both are odorless. So far the

Overview

Precious Stones - For Jewelers and the GEM-Loving Public

...Precious Stones Distinguished by their Properties. One precious stone is best distinguished from another just as substances of other types are distinguished, that is to say, by their properties. For example, salt and sugar are both white, both are soluble in water, and both are odorless. So far the italicized properties would not serve to distinguish the two substances. But sugar is sweet while salt is salty in taste. Here we have a distinguishing[2] property. Now, just as salt and sugar have properties, so have all precious stones, and while, as was the case with salt and sugar, many precious stones have properties in common, yet each has also some properties which are distinctive, and which can be relied upon as differentiating the particular stone from other stones. In selecting properties for use in distinguishing precious stones, such properties as can be determined by quantity, and set down in numbers, are probably more trustworthy than those that can be observed by mere inspection. Those also which have to do with the behavior of light in passing through the stone are extremely valuable

Product Details

ISBN-13:
2940013386846
Publisher:
Caring & Sharing
Publication date:
09/17/2011
Sold by:
Barnes & Noble
Format:
NOOK Book
Pages:
104
Sales rank:
730,566
File size:
2 MB

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Precious Stones - For Jewelers and the GEM-Loving Public 5 out of 5 based on 0 ratings. 1 reviews.
Anonymous More than 1 year ago
I might buy it mybe