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After the Second World War, ruby deposits were found in Madagascar, Mozambique, Nepal, Pakistan, Tajikistan, Tanzania, and Vietnam. [11] The Republic of North Macedonia is the only country in mainland Europe to have naturally occurring rubies. They can mainly be found around the city of Prilep. Macedonian rubies have a unique raspberry color. [12]
National Museum of Natural History [3] DeLong Star Ruby: Burma: 1930 100.32 carats (20.064 g) American Museum of Natural History [4] Garrard's Red Ruby Burma: 40.63 carats (8.126 g) [5] Sunrise Ruby: 25.59 carats (5.118 g) [6] Carmen Lúcia Ruby: Burma: 1930s 23.1 carats (4.62 g) National Museum of Natural History [7] Elizabeth Taylor Ruby
The stone town of Kuklica is an area consisting of over 120 naturally formed stone pillars, located in the village of Kuklica, near Kratovo in North Macedonia. [10] Kratovo, which lies on the slope of Mount Osogovo, is itself located in the basin of an extinct volcano and hosts the Plavica (or Plavitsa) deposit, which has been mined since Roman ...
[5]: 431–707 Sapphire and rubies are often found in the same geographical settings, but they generally have different geological formations. For example, both ruby and sapphire are found in Myanmar's Mogok Stone Tract, but the rubies form in marble, while the sapphire forms in granitic pegmatites or corundum syenites. [5]: 403–429
It is typically blue, but natural "fancy" sapphires also occur in yellow, purple, orange, and green colors; "parti sapphires" show two or more colors. The only color corundum stone that the term sapphire is not used for is red, which is called a ruby. [1] Pink colored corundum may be either classified as ruby or sapphire depending on locale.
Individually, ruby-bearing zones can measure up to 20 metres in thickness and up to 200 metres in length. They may occur as single showings, but are usually found in alignments of multiple showings, with some of the occurrences such as The Ruby Island Line collectively up to 3.5 kilometres in strike length, and as much as 100 metres in width. [5]
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Reconstructed ruby was sold as a process which produced larger rubies from melting together bits of natural ruby. [66] In later attempts to recreate this process it was found to not be possible and is believed reconstructed rubies were most likely created using a multi-step method of melting of ruby powder. [64]