u/No_Manager92

Would have loved more coins but rarely somebody used them

Coated in nail laquer to stop dehydration, one is still in solution to be grown for many months ahead
Biggest crystal is 5-6cm

I was watching this video on facebook and suddenly, this happened to the video for 2-3 seconds then disappeared, rewinded the video and appeared again at the same second. It's not the first time it happened but I don't remember which app I was using last time I saw it (most probably facebook)
What is it?

"Gulf Rupee" - for circulation in the Persian/Arabian Gulf
During British rule and until the 1960ies, most of the countries in this area did not have their own currencies. Given the great amount of trade between India and the Persian Gulf countries, using the Indian Rupee was a natural choice. Prior to 1957, Persian Gulf banks collected Indian Rupees and presented them to the Reserve Bank of India to be converted into foreign currencies. In 1957, India imposed strict foreign exchange controls. It became very important for the Reserve Bank of India to know and control the flow of Indian Rupees being used outside India. This necessitated changing the existing currency exchange arrangements India had with the Persian Gulf countries. A separate series of Indian banknotes was released for exclusive use in the Persian Gulf countries.
In 1959 new notes were released into circulation (Rp. 1, 5, 10 & 100). The design of these notes was the same as the circulating Indian banknotes, but prefix letter "Z" was used and the colors changed.

Text source: banknote.ws

The font was different, the "C" was more squared
//LE: Maybe had a narrow black strip along the edge? I can't remember

Weight: 2,15g
Diameter: 15mm
 
In the first photo it looks like a the head of Alexander the Great and in the second photo might be a bull/cow!?

Please help me with that:
Weight: 5,28g
Diameter: 15mm
Metal: possibly bronze
 
In the first photo I can see a head looking right, and in the second photo it looks like a central stranding person surrounded by lettering or dots.
 
Thank you!