Saturday, November 4, 2023

Rhodium

 

It seems people (not me) are back to investments in gold and other precious metals  to minimize the risks of inflation, and for other various reasons.  

I've recently learnt,  about a very rare and expensive metal - rhodium.  Its symbol on the periodic table of elements is Rh and its atomic number 45.   It is used  in industry  primarily as an agent of  hardening, increase  of resistance to corrosion, and reflectivity.


Rhodium is much more expensive than the other known precious metals (gold, titanium, silver) because of its rarity. It cannot be mined on its own; it's a by product of titanium mining. The main country source for rhodium is South Africa.

The name 'rhodium'  has been brought up , the other day, in a discussion on plated jewelry.   Rhodium is used to coat mainly white gold and or platinum jewlery to give it durability and improve its brightness.

I've got no plated jewlery at all, so I'm not familiar with the process. I do own  a few personal jewlery pieces made of gold, silver, titanium of various karat values, but these pieces are not coated with some other metal for protection  and shine.

They say, that unlike nickel, this silver-white metal rhodium, has no allergenes, so the plating is hypoallergenic. When added to a white gold ring with a diamond, it enhances the brilliance of the diamond.

Anyway, rhodium is not for people with modest means. It's too expensive, but like anything found in nature,  'rhodium' is an interesting  topic, and not only to those looking for metal investment or jewelry plating  (I'm not looking for either).


Sunday, October 29, 2023

'Optician Puzzle'


 


Whenever in the neighbouring town,  I used to pass by a small optical shop and peep inside. The guy  there,  was a familiar face from childhood. I went to the same school class with his elder brother, so I hoped perhaps to see the brother there one day, or enter to ask about his whereabouts.  Neither of it has happened.

During the last two years I noticed the complete absence in the shop,  of his wife , the optician. I became curious. Something seemed wrong. One day, several weeks ago,  when there was no customer inside , I plucked up the courage and entered. I introduced myself, we talked about this and that, I asked about the brother, and then about his wife.

 Oh, he said, she's at home with the grandkids;  no need for her to be here.  I do it all. You?!   How come?! Are you an optician too? No. Have you taken any courses in optics, optometrics, something professional? No.   So?!!  Well, I've learnt it all from her, from customers , from life.  I was in  shock.  He actually admitted to be some kind of a pretender.

I suppose he does a lot of work, but not all of it, as she might lose her licence of optician/optometrist. My theory is that whenever a big problem arises, or there's a potential, serious customer, the husband gives her a call and she comes immediately as they live quite near the  business.

Anyway, I've changed my route since then, so that I won't be tempted to face him and his story again.  In a way, I feel some strange 'appreciation'  for his ability  and 'talent' to do the job of an optician without being one.  I feel much less appreciative of his wife for cooperating with this deceptive practice.