RAPAKIVI GRANITE - 1.6 billion years old - Finland
« backRAPAKIVI GRANITE
Approx. 1.6 billion years old
Etelä-Suomen Lääni, Finland
A granite of unusual appearance consisting of large, roundish orthoclase feldspar crystals with grey-green rims of plagioclase feldspar. This is known as 'rapakivi texture'.
This granite is from the large Vyborg massif of Precambrian age. It is widely used commercially as a polished stone under the name Baltic Brown.
This is a large sample, polished on one side only.
Click on a picture for a larger image
Size: 17 x 10 x 3 centimetres
Weight: 817 grams
|
-12204-p.jpeg?v=B5A65F70-70DB-43FC-91C4-42DFE3DD3B8B)
-12204-p.jpeg?v=D43EC8BB-D9EF-4966-8ACC-4269FC376A94)
-12204-1-p.jpeg?v=87AEBA28-C9DB-453C-8740-9388632025FB)
-12204-p.jpeg?v=E5765E6A-ECCC-4C7E-9E01-C8CE5935A037)
