Tiny guest oriented inclusions with biotite crystal inclusions in a peridot from Myanmar
Micrographs

Tiny guest oriented inclusions with biotite crystal inclusions in a peridot (forsterite) from Myanmar

Thank you!

One of you asked us the question we were expecting (publication February 24th 2020 on Instagram)  about the following micrograph of peridot (forsterite):

"What are the short black needles in the photo?"

In fact, these are not needle-like crystals like rutile or hematite-ilmenite which are found in corundum for example.

They are simply very fine flat biotite crystals that are observed parallel to their plane and which, consequently, look like needles on a micrograph.

Figure 1: Inclusions of biotite from Pyaung Gaung, Mogok, Myanmar, observed parallel to their plane.
Figure 1: Inclusions of biotite from Pyaung Gaung, Mogok, Myanmar, observed parallel to their plane.

 

Figure 2: Inclusions of biotite from Pyaung Gaung, Mogok, Myanmar, observed perpendicular to their plane.
Figure 2: Inclusions of biotite from Pyaung Gaung, Mogok, Myanmar, observed perpendicular to their plane.

 

Do you need this micrograph in full resolution for an article, a DUG dissertation, etc.? Do not hesitate to contact us.

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