How stones are different from each other

Valuable Stones Distinguished by their Properties. One valuable stone is best recognized

from another similarly as substances of different kinds are recognized, in other words, by their

properties. For instance, salt and sugar are both white, both are dissolvable in water, and both are

scentless. So far the emphasized properties would not serve to recognize the two substances. However

sugar is sweet while salt is pungent in taste. Here we have a distinguishing[2] property. Presently, similarly as

salt and sugar have properties, so have every single valuable stone, and keeping in mind that, just like the case with salt

furthermore, sugar, numerous valuable stones share properties for all intents and purpose, yet each has likewise a few properties

which are unmistakable, and which can be depended upon as separating the specific stone from

different stones. In choosing properties for use in distinctive valuable stones, such properties as

can be controlled by amount, and put down in numbers, are likely more dependable than

those that can be seen by simple review. Those additionally which have to do with the conduct of

light in going through the stone are incredibly significant.

Significance of Numerical Properties. It is on the grounds that pearl vendors so regularly depend upon the more

clear kind of property, like tone, that they so oftentimes commit errors. There might be

a few distinct kinds of stones of a given tone, yet each will be found to have its own

mathematical properties, for example, density,[3] hardness, refractive force, dispersive force, and so forth, and it

is simply by a precise assurance of a few of these that one can be certain what stone he

has close by. It should next be our errand to discover precisely what is implied by each of these mathematical

properties, and how one may decide each effortlessly and precision.