Kyanite Thin Section

Kyanite in kyanite cordierite biotite gedrite gneiss thor odin dome british columbia.

Kyanite thin section. Kyanite speckled with garnet and chalcopyrite. Kyanite quartzite plane polars. Click on the image to see a larger image with roll over tthat shows the crystal in cross polarized light.

Andalusite is a yellow brown green or red orthorhombic mineral that occurs in thick almost green prisms in schist gneiss and hornfels. Photomicrograph of kyanite in plain and polarized light showing distinct cleavage breaks colorless in thin section in plain light this crystal shows a low interference color in polarized light. Kyanite in thin section thin section gigapans.

Thin section plane light. Kyanite quartzite crossed polars. Scanning electron micrograph of kyanite.

Kyanite is surrounded by cordierite with incipient development of spinel symplectite on lower kyanite crystal. Kyanite also know as disthene is a mineral commonly found in aluminium rich metamorphic rocks. Kyanite in hand sample.

Alex strekeisen i vetrini della mia fantasia. Kyanite in metamorphic rocks generally forms at medium to high pressures and low to moderate temperatures in regional metamorphism of barrowian type. Key optical features of kyanite in thin section.

The kyanite porphyroblasts have inclusions of quartz and the muscovite fabric is evident between the lower grain and the bottom of the image. Andalusite al 2 sio 5 andalusite named by jean claude delamétherie in 1798 for the supposed type locality andalusia region spain is an aluminium mineral with the chemical formula al 2 sio 5 andalusite was first analysed by werner on specimens coming from spain. Both the fibrous and traditional forms of sillimanite are common in metamorphosed sedimentary rocks.