Spectroscopy and Spectral Analysis, Volume. 42, Issue 4, 1204(2022)
Chemical Constituents and Spectra Characterization of Gem-Grade Triplite
Figures & Tables(11)
Fig. 3. Raman spectra of triplite compared with zwieselite and wolfeite in RRUFF
Fig. 5. Infrared spectra of triplite compared with zwieselite and wolfeite in RRUFF
Table 1. Routine gemological parameters of triplite samples
View tableView in ArticleTable 1. Routine gemological parameters of triplite samples
样品名 颜色 重量/ct 折射率 双折射 密度/(g·cm-3) 多色性 荧光 L-1 红橙 0.54 1.658~1.673 0.015 3.857 弱, 红橙-黄橙 惰性 L-2 红橙 0.49 1.656~1.673 0.017 3.807 中, 红橙-黄橙 惰性 L-3 红橙 1.42 1.657~1.675 0.018 3.820 强, 红橙-浅黄 惰性
Table 2. Chemical composition characteristics of triplite samples (Wt%)
View tableView in ArticleTable 2. Chemical composition characteristics of triplite samples (Wt%)
Sample L-1 L-2 L-3 Average 巴基斯坦
Shigars
山谷[1 ]CaO 3.169 4.154 4.138 3.820 4.20 Na2O 0.04 0.017 nd 0.019 - TiO2 0.006 0.004 nd 0.003 - Al2O3 nd 0.004 nd 0.001 0.06 MgO 0.366 0.739 0.675 0.593 - SiO2 0.014 0.001 nd 0.005 0.06 FeO* 6.925 5.403 4.551 5.626 3.91 MnO 52.391 52.667 53.498 52.852 54.91 F 7.590 6.047 7.393 7.01 6.87 K2O 0.009 nd nd 0.003 - P2O5 31.624 31.328 31.600 31.517 31.92 102.134 100.364 101.855 101.449 101.93 
3.196 2.546 3.113 2.952 2.89 Total 98.938 97.818 98.742 98.497 99.04
Table 3. Raman shift and attribution of triplite samples
View tableView in ArticleTable 3. Raman shift and attribution of triplite samples
拉曼位移/cm-1 强度 振动归属 L-1 L-2 L-3 91 91 89 极弱 晶格振动 276 244 244 极弱 晶格振动 427 427 424 弱 磷酸基团ν2弯曲振动 450 450 450 弱 磷酸基团ν2弯曲振动 603 603 607 弱 磷酸基团ν4弯曲振动 980 980 980 极强 磷酸基团ν1对称伸缩振动 1 037 1 037 1 037 弱 磷酸基团ν3反对称拉伸振动 1 075 1 131 1 075, 1 130 弱 磷酸基团ν3反对称拉伸振动
Table 4. Triplite group minerals
View tableView in ArticleTable 4. Triplite group minerals
矿物名 英文名 化学式 晶系 氟磷锰矿 Triplite Mn2[PO4]F 单斜晶系 羟磷锰矿 Triploidite Mn2[PO4](OH) 单斜晶系 羟磷铁矿 Wolfeite Fe2[PO4](OH) 单斜晶系 氟磷铁矿 Zwieselite Fe2[PO4]F 单斜晶系
Table 5. Infrared absorption peaks and their attribution of triplite samples
View tableView in ArticleTable 5. Infrared absorption peaks and their attribution of triplite samples
峰位/cm-1 强度 峰位归属 L-1 L-2 L-3 453 457 460 弱 基团ν2对称弯曲振动 595 603 586, 625 中等 基团ν4弯曲振动 975 975 974 弱 基团ν1对称拉伸振动 1 078 1 072 1 070 强 基团ν3反对称拉伸振动 1 134 1 141 1 137 中等 基团ν3反对称拉伸振动
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Yang LÜ, Jing-cheng PEI, Ya-ting GAO, Bo-yu CHEN. Chemical Constituents and Spectra Characterization of Gem-Grade Triplite[J]. Spectroscopy and Spectral Analysis, 2022, 42(4): 1204
Paper Information
Category: Research Articles
Received: Mar. 23, 2021
Accepted: --
Published Online: Jul. 25, 2023
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