a3460 Moonstone

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Moonstone from Kilosa, Tanzania. Getting rough moonstone with good quality blue flash is rather difficult. This is because most material with good color flash is sorted out at mines, and sent to cutting houses for jewelry making. This piece, while not quite gem quality, is quite pretty none-the-less, and lives up to its ethereal namesake. This sample of the moon-white variety of feldspar comes through with a good blue flash on the top surface when held at just the right angle in good strong light. The surprising glow comes from an intergrowth of fine layers that refract the light. The whole top face of this piece lights up nicely when it catches the light. An attractive and hard to get material.

Length: 5.40 cm
Width: 3.20 cm
Height: 3.20 cm