Bitcoin mining involves solving complex mathematical puzzles, validating transactions and securing the network. Miners compete to find the correct hash, adding new blocks to the blockchain and ...

Copyright 2025 The Associated Press. All Rights Reserved. A miner is transported on a stretcher by rescue workers after he was rescued from below ground in an ...

Employees of Kagem, the firm’s emerald mine, are currently on forced leave for six months after the firm in December suspended production. It said at the time prospects for emeralds were poor for the ...

Adamo I., Pavese A., Prosperi L., Diella V., Merlini M., Gemmi M., Ajo D. (2005) Characterization of the new Malossi hydrothermal synthetic emerald. G&G, Vol. 41, No ...

Mining is the process of adding and validating transaction records on the Bitcoin public blockchain ledger while securing uptime for the network. This is how the network persists without relying ...

Rescuers have spent Tuesday pulling body bags and survivors from a South African mine where scores of illegal miners are still thought to be at least 2km (1.2 miles) underground. Eighty-two people ...

This is before factoring in the 30% corporation tax. In comparison, Brazil and Colombia, the world’s other top emerald exporters alongside Zambia, have significantly lower taxes. Gemfields ...

Northam’s Booysendal platinum mine, located on the Eastern Limb of the Bushveld complex near the town of Mashishing (previously Lydenburg), has achieved the remarkable feat of being fatality-free ...

Gemfields is faced with a new export tax for shipments of emeralds from Zambia, where it operates the Kagem Emerald Mine. The Zambian woes have been mounting for Gemfields. Last month, the company ...

Gemfields will lobby the Zambian government reverse a newly reinstated export duty on precious stones, as its share price stumbles on fears for its Kagem Mining operation in the country.

The Gravelotte emerald mine, which was in operation from 1929 to 2002 and was reportedly the world’s biggest emerald mine in its heyday, is once again in production, albeit initially on a very small ...