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PT Aneka Tambang Tbk, colloquially known as Antam, is an Indonesian mining company. The company primarily produces gold and nickel, and is the largest producer of nickel in Indonesia . Until 2017, Antam was a directly state-owned company , before its ownership was transferred to PT Mineral Industri Indonesia (Persero) or MIND ID, a government ...
The Indonesian one thousand rupiah coin (Rp1,000) is a coin of the Indonesian rupiah.It circulates alongside the 1,000-rupiah banknote. First introduced on 8 March 1993 as bimetallic coins, they are now minted as unimetallic coins, with the first of its kind appearing in 2010 and its latest revision being in 2016.
The Indonesian one hundred rupiah coin (Rp100) is a denomination of the Indonesian rupiah.First introduced in 1973 in cupronickel, it has been revised four times throughout its history, changing materials in 1991 (to aluminum-bronze) and 1999 (to aluminum).
Indonesian Word Indonesian Meaning Sanskrit Word Sanskrit Transcription Sanskrit Meaning Note abrak: clear mining product, such as glass, mica: अभ्रक
The fifty rupiah coin (Rp50) is a denomination of the Indonesian rupiah.It was first introduced in 1971 and last minted in 2003. As of 2020, only aluminum Rp50 coins dating from 1999 through 2003 remain legal tender, although it is rarely seen in circulation due to its extremely low value.
The oldest known copper artefacts in Indonesia were dated to between the 4th century BC and 1st century AD, in Harimau Cave in South Sumatra. [1] Although later artefacts indicate local metallurgical processing, the raw copper was sourced from outside modern Indonesian through trade. [2]
In metallurgy, non-ferrous metals are metals or alloys that do not contain iron (allotropes of iron, ferrite, and so on) in appreciable amounts.. Generally more costly than ferrous metals, non-ferrous metals are used because of desirable properties such as low weight (e.g. aluminium), higher conductivity (e.g. copper), [1] non-magnetic properties or resistance to corrosion (e.g. zinc). [2]
Metallurgy derives from the Ancient Greek μεταλλουργός, metallourgós, "worker in metal", from μέταλλον, métallon, "mine, metal" + ἔργον, érgon, "work" The word was originally an alchemist's term for the extraction of metals from minerals, the ending -urgy signifying a process, especially manufacturing: it was discussed in this sense in the 1797 Encyclopædia ...