Polished amazonite tumbled and sold by the pound: a blue-green microcline feldspar named for the Amazon, though most of what reaches the lapidary trade today comes from Madagascar. The color runs from pale sky to deep teal, often streaked with the white feldspar veining that marks the stone as natural. Product Details Tumbled amazonite, sold by weight in a 1 lb bag Pieces roughly 1 to 2 inches; count varies by size Natural color and veining vary from stone to stone Origin: Madagascar In Practice In crystal lore amazonite is a throat-and-heart stone, kept for calm and for speaking plainly and truthfully. Hold one while you gather your thoughts, set a few on the altar, or carry a piece in a pocket. These are working and display stones rather than tumbles graded for jewelry.