Scottish Geology Face Mask - Lewisian Gneiss rock thin section image (FM41)

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Scottish Geology Face Mask - Lewisian Gneiss rock thin section image (FM41)

  • Scottish Geology Face Mask - Lewisian Gneiss rock thin section image (FM41)

  • This colourful geology face mask showing a photograph of a thin section of Hornblendite from Avernish in the Scottish Highlands would certainly make you stand out in a crowd!
  • £12.50
Out of stock.

A thin rock section of Hornblendite was viewed by polarised light microscopy. Hornblendite is a metamorphic rock and shows laths of actinolite in random orientation (actinolite is a member of the hornblende family)

From the Lewisian Gneiss of North West Scotland, The oldest rocks in the UK, and amongst the oldest anywhere on earth.

About 2500 million years old, half the age of the planet.

These facemasks measuring 13 x 17.5cm have a full coverage print on their polyester front with a soft white cotton reverse. They come complete with 2 replaceable PM2.5 filters (8.5 x 12cm) that fit in a pouch between the outer and inner and soft elasticated ear loops (which come with rubber gromets to adjust for size but I normally just tie a loose knot in the elastic).

Please note that these are not medical grade masks but they are perfect for general use. 

(Washing instructions - facemask machine wash at 40C, PM2.5 filter handwash. PM2.5 filter can be replaced with folded up kitchen roll.)

Supplied with a description of the image so you can show off to people who admire it!

Free UK delivery!

Delivery charges for overseas orders are calculated in the shopping basket.

Orders are normally sent out within 2 working days.