AmazoniteChunk - Unique #9 Amazonite is a variation of microcline feldspar that has blue-green colour. The specimen for sale is an elongated piece with mostly flat faces that showcase the stone’s natural colours. There is a curved face with reddish-brown colouring as well. There are also a few smoky quartz crystals growing on the specimen. This stone is rare for its size and is of nice quality, making it an impressive piece to put on display. Note: This product is fairly brittle and must be handled with care.