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	Borates 硼酸鹽
	Name	Formula	Crystal System	Hardness	SG
	Boracite 方硼石	Mg3B7O13Cl	Orthorhombic	7-7.5	3
	Borax 硼砂	Na2B4O5(OH)4.8H2O	Monoclinic	2-2.5	1.7
	Colemanite 硬硼鈣石	Ca2B6O11.5H2O	Monoclinic	4.5	2.4
	Gaudefroyite 碳硼錳鈣石/鐵方硼石	Ca4Mn3+3(BO3)3CO3(O,OH)3	Hexagonal	6	3.4
	Hambergite 硼鈹石	Be2BO3(OH,F)	Orthorhombic	7.5	2.4
	Inderite 多水硼鎂石	MgB3O3(OH)5.5H2O	Monoclinic	2.5	1.8
	Inyoite 板硼石	CaB3O3(OH)5.4H2O	Monoclinic	2	1.9
	Kernite 四水硼砂/斜方硼砂	Na2B4O6(OH)2.3H2O	Monoclinic	2.5-3	1.9
	Ludwigite 硼鎂鐵礦	MgFe3+BO5	Orthorhombic	5	3.9
	Rhodizite 硼鋰鈹礦	(K,Cs)Al4Be4(B,Be)12O28	Cubic	8.5	3.5
	Ulexite 硼鈉鈣石/電視石	NaCaB5O6(OH)6.5H2O	Triclinic	2.5	2

Reference:
The Complete Encyclopedia of Minerals | Gemstones of the World | 岩石與礦物圖鑑