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C. Pellant, "Rocks and Minerals", 2nd ed. (DK Publishing, London, 2002) pp.18-31.
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2 |
H. Kuhn, H. Frsterling and David H. Waldeck, "Principles of Physical Chemistry" (A John Wiley & Sons, Inc, publication, 2009) p.287.
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3 |
C. Jotisalikorn and K. Zabihi, "Color Spectrum" (Tuttle, 2007) p.48.
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4 |
D. Stein, "GEM Stones A to Z" (Crossing Press, printed in Canada, 2008) p.98, 192, 148-150, 207, 183.
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5 |
K. Nassau, "Gems Made By Man", Gemological Institude of America (Santa Monica, California, 1886) p.75.
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6 |
M.L. Van, "500 Gemstone Jewels" (Lark Books, 2010) p.23.
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7 |
J. Harris and S. Withdraw, "Vector Graphics and Illusrtation" (Quayside, 2008) p.84.
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8 |
R. King, "Art" (DK Publishing, United States, New York, 2008) p.239.
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9 |
A. Grjffiths, "Simply Beautiful Photographs" (Focal Point China, 2010) p.40.
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10 |
G. James, "Creative Walls" (CICO Books, 2011) p.152.
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11 |
K. Ebben, "Wall Effects" (Conran, octopus, Printed in China, 2007) p.124.
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12 |
R.L. Boneuitz, "Rocks & Minerals" (DK Publishing, United States, New York, 2008) p.87.
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13 |
L.A. Savoir, "Pattern Design" (Rockport, 2007) p.76.
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