[1] [1] Bray P S,Anderson K B.Science,2009,326:132.

[2] [2] Guiliano M,Asia L,Onoratini G,et al.Spectrochimica Acta Part A,2007,67:1407.

[6] [6] Brody R H,Edwards H G M,Pollard A M.Spectrochimica Acta Part A.2001,57:1325.

[7] [7] Rao Z F,Dong K,Yang X Y,et al.Science China Physics,Mechanics & Astronomy,2013,56(8):1598.

[8] [8] Shi G H,Grimaldi D A,Harlow G E,et al.Cretaceous Research,2012,37:155.

[10] [10] Beck C W.Appied Spectroscopy Review,1986,22(1):57.

[11] [11] Abduriyim A,Kimura H,Yokoyama Y,et al.Gem & Gemology,2009,45(3):158.

[12] [12] Lambert J B,Poinar G O.Accounts of Chemical Research,2002,35:628.

[13] [13] Liu Y,Shi G H,Wang S.Gem & Gemology,2014,50(2):134.