Sinhalite

Sinhalite
General
Category	Mineral
Crystal system	Orthorhombic
Identification
Mohs scale hardness	6 1⁄2-7
Density	3.475-3.5

Sinhalite is a borate mineral with formula MgAl(BO₄).^[2]

Sinhalite was first found in Sri Lanka (Ceylon) in 1952, and was named from Sinhala - the Sanskrit name for Sri Lanka.^[3]

Gemstone quality Sinhalite can also be found in Madagascar, Tanzania and Myanmar (Burma). The most commonly seen color of Sinhalite are white to gray, grayish-blue or a shade of brown ranging from pale to dark. Pale pink and brownish pink crystals can be found in Tanzania.

References

↑ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.
↑ "Sinhalite". Mindat.org. https://www.mindat.org/min-3672.html.
↑ "Sinhalite gemstone information". https://www.gemdat.org/gem-3672.html. Retrieved 21 March 2019.

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[1] Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine 85 (3): 291–320. doi:10.1180/mgm.2021.43. Bibcode: 2021MinM...85..291W.

[Mindat-2] "Sinhalite". Mindat.org. https://www.mindat.org/min-3672.html.

[Gemdat-3] "Sinhalite gemstone information". https://www.gemdat.org/gem-3672.html. Retrieved 21 March 2019.