(1979) found that in an assumed Al-conservative alteration of granitic biotite to chlorite there was a 13% volume de-crease, and that Mg2+ and Fe2+ ions were added. Veblen and Ferry (1983) examined the partially chloritized biotite described by Ferry (1979) using transmission electron mi-croscopy. They showed that alteration to chlorite pro-
Part of the Internet technologies glossary: Bitcoin is a digital currency (also called crypto-currency) that is not backed by any country's central bank or government.Bitcoins can be traded for goods or services with vendors who accept Bitcoins as payment.art of the Internet technologies glossary: Bitcoin is a digital currency (also called crypto-currency) that is not backed by any country's central bank or government.
Bitcoin is backed by the faith of the people that use it but you canât cash it in for anything or use it for something else if Bitcoin should fail to remain valuable.Many government-backed currencies are similar.ike Bitcoin, you canât cash in a dialed government fiat currency for anything or use it for something else. Some are very wary of Bitcoin because you can hold it or use if for anything else. A common example is gold which can be used for jewelry, electronic equipment, etc.