Serendibite

A variety of Minerals

Serendibite specimen - rock identification

What is Serendibite?

Serendibite is an extremely rare silicate mineral that was first discovered in 1902 in Sri Lanka by Dunil Palitha Gunasekera and named after Serendib, the old Arabic name for Sri Lanka. The mineral is found in skarns associated with boron metasomatism of carbonate rocks where intruded by granite. Minerals occurring with serendibite include diopside, spinel, phlogopite, scapolite, calcite, tremolite, apatite, grandidierite, sinhalite, hyalophane, uvite, pargasite, clinozoisite, forsterite, warwickite and graphite.

Optical Properties

Refractive Index
1.696-1.702
Birefringence
0.005
Pleochroism
Strong: yellowish-green, bluish-green, violet-blue
Optical Character
Biaxial negative

Serendibite Market Value Calculator

Estimate the market value of Serendibite using size, quality, and finish. This preview calculator is for quick context and is not a formal appraisal.

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Serendibite Localities Map

See where Serendibite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

Map preview
North ZoneCentral RidgeSouth Basin

Interactive map layers and collecting notes are available in the app.

More Images

Serendibite specimen 2
© Robert M. Lavinsky

Quick Facts

Physical Properties

Color
pale yellow, blue-green, greyish blue
Hardness (Mohs)
6.5 - 7
Density
3.47 g/cm³
Streak
white

Chemical Properties

Chemical Formula
Ca4[Mg6Al6]O4[Si6B3Al3O36]
Elements
Al, B, Ca, Mg, O, Si
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