Original sentence: (ref: Thailand blackstar).A very rare variation is a metallic red colour.Black Star of Queensland.Golden Sheen Sapphire, also known as star sapphire, is a gemstone variety of the mineral corundum, an aluminium oxide ().Golden sheen sapphire is known to come from one source in central Kenya, the Garbatula mine, discovered in 1967 and claimed by Lapigems in the early 1970s.It has been known in the trade as 'star sapphire', 'golden sapphire,' and 'black star sapphire' for about 50 years.Other golden corundum is found in Australia (for example, the Black Star of Queensland), Laos, Sri Lanka, Madagascar and Thailand and has been known for 40 years or more as black star or star sapphire.The golden sapphire material is not a new variety.The name 'golden sheen sapphire' is often shortened to 'gold sheen sapphire' and the name is interchangeable.The quality and grade varies in each deposit but there is much more high grade material from Kenya and Thailand
Edited sentence: 'Golden sheen sapphire' has been known in the trade as star or black star sapphire for about 50 years.(Page 689 Journal of Gemmology)  The quality and grade varies in each deposit but there is much more high grade material from Kenya and Thailand.(Page 689, Journal of Gemmology).A very rare variation is a metallic red colour, with only a few known examples in existence.As verified by Bangkok traders offering tons of new multicolor stone, it is not depleted.Blue and gold golden sheen sapphire.Gem-A correctly notes “To our knowledge, NO CORUNDUM deposits have been reported in areas near Somalia.Golden Sheen Sapphire also known as star sapphire is a gemstone variety of the mineral corundum, an aluminium oxide ().Golden sheen sapphire is known to definitely come from CENTRAL Kenya from the Garbatula mine.Goldsheen sapphire is not a new variety of stone.Star sapphire or 'blackstar' sapphire has been around for more than 50 years in areas of Australia, Laos, Thailand, Madagascar, Sri Lanka, Mozambique and many other countries.The black star sapphire from Thailand is quite unique in having a gold (rather than white) star.The exact location is here:.The mine was discovered in 1967 and claimed by Lapigems in the early 1970s.”  The flat desert area near the dangerous border does not have the correct geology