Tsilaisite
In today's world, Tsilaisite has become a topic of great importance and relevance. Since its emergence, it has captured the attention of a large number of individuals, either due to its direct impact on society or due to its influence in different areas. Tsilaisite has generated controversy, debate and discussion, and its presence continues to generate interest and curiosity in those who wish to further understand its meaning and scope. In this article, we will explore the different aspects related to Tsilaisite, from its origin to its evolution in the present, with the aim of providing a comprehensive and comprehensive view on the topic.
| Tsilaisite | |
|---|---|
| General | |
| Category | Tourmaline |
| Formula (repeating unit) | NaMn2+3Al6Si6O18(BO3)3(OH)3OH |
| IMA symbol | Tsl |
| Crystal system | Trigonal |
| Identification | |
| Mohs scale hardness | 7 to 7.5 |
| Luster | Vitreous |
| Streak | White |
Tsilaisite is a manganese rich variety of elbaite tourmaline. It is also known as Tsilaizite. Tsilaisite is related Fluor-tsilaisite. The gem is named after the location it was first found.
History
It was first reported in the Tsilaisina (also called Tsilaizina) Mine in Vakinankaratra, Madagascar.
The gem was originally described as tsilaisite. But then it was discredited in 2006. In 2011 it was reapproved as tsilaisite.
Characteristics
Color
In plane polarized light, the gem is pleochroic. Tsilaisite can be deep pink, red, orangish-yellow, brownish-gold, or greenish-yellow.
Chemistry
Manganese makes up to 3% of the gem's chemistry.
References
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ a b Manutchehr-Danai, Mohsen (2013-03-09). Dictionary of Gems and Gemology. Springer Science & Business Media. p. 485. ISBN 978-3-662-04288-5.
- ^ a b c d "Tsilaisite". National Gem Lab. 2017-03-27. Retrieved 2021-09-27.
- ^ Bosi, Ferdinando; Andreozzi, Giovanni B.; Agrosi, Giovanna; Scandale, Eugenio (February 2015). "Fluor-tsilaisite, NaMn3Al6(Si6O18)(BO3)3(OH)3F, a new tourmaline from San Piero in Campo (Elba, Italy) and new data on tsilaisitic tourmaline from the holotype specimen locality". Mineralogical Magazine. 79 (1): 89–101. doi:10.1180/minmag.2015.079.1.08. ISSN 0026-461X. S2CID 129149776.
- ^ a b c "Tsilaisite". www.mindat.org. Retrieved 2021-09-27.
- ^ Issues in Geology and Mineralogy: 2013 Edition. ScholarlyEditions. 2013-05-01. p. 677. ISBN 978-1-4901-0698-4.
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