What is a crystal?|| How is the magic of nature formed?||YouTube engineer|

[@khanji6442]

very very Nice ❤❤❤

[@Esfandiarengineer]

thank 👍❤️

[@atcn1956]

🎉

[@Esfandiarengineer]

🌺❤️🌺

[@LeoniljrLabe]

Yes many colect this and can hold ding now,, 2:37

[@LeoniljrLabe]

​@@Esfandiarengineer it is real ,, 3:22

[@LeoniljrLabe]

​@@Esfandiarengineerreal,,gemstons

[@mohammadjalaludin-md8bh]

Terima kasih atas ilmu yang anda berikan 🙏❤️👍

[@Esfandiarengineer]

This is my duty, I will try to provide better content. Thank you
❤️

[@VijayGoswami-dl9vp]

Very beautiful gems stone 🇮🇳

[@Esfandiarengineer]

🌺❤️🌺

[@LeoniljrLabe]

Ihave this gems, 0:36

[@Esfandiarengineer]

🌺❤️ Thank you🌺

[@88.Rass.88]

How to separate gold alloy with platinumgroup and silver ??

[@Esfandiarengineer]

There are several methods, the most straightforward method is the use of selective precipitants, and of course not for soil

[@88.Rass.88]

Can sodium acetate be used instead of vinegar?

[@Esfandiarengineer]

no my friend

[@SunnySunny-g4r]

How to sell ,I have it

[@Esfandiarengineer]

🌺❤️🌺

[@LeoniljrLabe]

Come her in country hurry up have many interested, 3:22

[@S13402]

The black dust attached to rocks is silver; what form is it? And how to get rid of it? It goes into solution of aqua regia and does not allow gold to precipitate!!

[@Esfandiarengineer]

That black dust is actually sulfur and is considered a nuisance. It is usually seen in silver color and sometimes in golden yellow color.

[@S13402]

@@Esfandiarengineer thus, it is silver sulfide, right?

[@Esfandiarengineer]

It is not silver sulfate! It is sulfur.
Sulfur also has a metal that is similar to silver.