Elements | Sulphides | Halides | Oxides | Carbonates | Borates | Sulfates |   Phosphates | Silicates | Organic Compounds | Rocks & Meteorites    A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T |  U | V | W | X | Y | Z |   日月星水晶屋 Sun Moon Star Crystal House  A 日月星水晶屋 Sun Moon Star Crystal House   Name Formula/Composition Crystal System Hardness SG Type Acanthite 螺狀硫銀礦 Ag2S Monoclinic 2-2.5 7.2 Sulphides   Achroite 無色電氣石 Ca(Li,Al)3Al6B3Si6O27(OH)3(OH,F) Trigonal 7-7.5 3.02-3.08 Silicates Acmite/Aegirine 錐輝石/霓輝石 NaFe3+Si2O6 Monoclinic 6 3.6 Silicates Actinolite 陽起石 Ca2(Mg,Fe)5Si8O20(OH)2 Monoclinic 5-6 3.2 Silicates Adamite 水砷鋅礦 Zn2(AsO4)(OH) Orthorhombic 3.5 4.4 Phosphates Aegirine/Acmite 霓輝石/錐輝石 NaFe3+Si2O6 Monoclinic 6 3.6 Silicates   Aenigmatite 三斜閃石/鈉鐵非石 Na2Fe5TiSi6O20 Triclinic 5.5 3.8 Silicates   Aeschynite-(Ce) 易解石 (Ce,Ca)(Ti,Nb)2O6 Orthorhombic 5.5 5 Oxides   Agate 瑪瑙 SiO2 Trigonal 6.5-7 2.6 Oxides   Agrellite 氟矽鈣鈉石 NaCa2Si4O10F Triclinic 5.5 2.9 Silicates   Aguilarite 輝硒銀礦 Ag4SeS Orthorhombic 2.5 7.7 Sulphides   Aikinite 針硫鉍鉛礦 PbCuBiS3 Orthorhombic 2-2.5 7.3 Sulphides   Ajoite 斜矽鋁銅礦 (K,Na)Cu7AlSi9O24(OH)6.3H2O Triclinic ----- 3 Silicates   Akermanite 鎂黃長石 Ca2MgSi2O7 Tetragonal 5.5 2.9 Silicates   Alabandite 硫錳礦 MnS Cubic 3.5-4 4.1 Sulphides   Albite 鈉長石/蘇打長石 NaAlSi3O8 Triclinic 6-6.5 2.6 Silicates   Alexandrite 亞歷山大石/變石 Be(Al,Cr)2O4 Orthorhombic 8.5 3.8 Oxides   Algodonit 微晶砷銅礦 Cu6As Hexagonal 4 8.7 Sulphides   Alkali-feldspars 鹼性長石   Triclinic/ Monoclinic 6-6.5 2.56-2.6 Silicates   Allanit-(Ce) 鈰褐簾石 (Ca,Ce,Y)2(Al,Fe3+)3Si3O12(OH) Monoclinic 5.5-6 3.9 Silicates   Allargentum 六方銻銀礦  Ag1-xSbx Hexagonal ----- 10.1 Sulphides   Allophane 水鋁英石 Al2SiO5.nH2O Amorphous 2-3 1.9 Silicates Almandine 鐵鋁石榴石 Fe3Al2Si3O12 Cubic 7.5 3.8-4.2 Silicates   Altaite 碲鉛礦 PbTe Cubic 3 8.3 Sulphides   Aluminite 鋁氧石/礬石 Al2(SO4)(OH)4.7H2O Monoclinic 1-2 1.7-1.8 Sulfates   Alumohydrocalcite 鋁水方解石 CaAl2(CO3)2(OH)4.3H2O Triclinic 2.5 2.2 Carbonates   Alunite 明礬石 KAl3(SO4)2(OH)6 Trigonal 3.5-4 2.8 Sulfates   Alunogen 毛礬石 Al2(SO4)3.17H2O Triclinic 1.5 1.8 Sulfates Amazonite 天河石 KAlSi3O8 Triclinic 6.0-6.5 2.56–2.58 Silicates   Amber 琥珀蜜蠟 Natural Plant Resin Amorphous 2-2.5 1.0-1.1 Organic   Amblygonite 鋰磷鋁石 LiAl(PO4)(F,OH) Triclinic 5.5-6 3.1 Phosphates   Amesite 鎂綠泥石 Mg2Al(SiAl)O5(OH)4 Triclinic 2.5-3 2.8 Silicates Amethyst  紫晶 SiO2 Trigonal 7 2.6 Oxides   Ametrine  紫黃晶 SiO2 Trigonal 7 2.6 Oxides   Amphibole 角閃石   Monoclinic/ Orthorhombic 5-6 2.9-3.5 Silicates   Analcime 方沸石 NaAlSi2O6.H2O Cubic 5-5.5 2.3 Silicates   Anapaite 斜磷鈣鐵礦 Ca2Fe(PO4)2.4H2O Triclinic 3.5 2.8 Phosphates   Anatase 銳鈦礦 TiO2 Tetragonal 5.5-6 3.8-4 Oxides   Ancylite-(Ce) 屬碳鍶鈰礦 Sr3(Ce,La)4(CO3)7(OH)4.3H2O Orthorhombic 4-4.5 4 Carbonates Andalusite 紅柱石 Al2SiO5 Orthorhombic 6.5-7.5 3.2 Silicates   Andersonite 水碳鈉鈣鈾礦 Na2Ca(UO2)(CO3)3.6H2O Trigonal 2.5 2.9 Carbonates   Andesine 中長石/中性長石 (Na,Ca)(Si,Al)2Si2O8 Triclinic 6-6.5 2.7 Silicates   Andesit Basic 基性安山岩         Rocks & Meteorites   Andorite 銻鉛銀礦 PbAgSb3S6 Orthorhombic 3-3.5 5.4 Sulphides   Andradite 鈣鐵榴石 Ca3Fe3+2Si3O12 Cubic 6.5 3.82-3.85 Silicates   Anglesite 硫酸鉛礦/鉛礬 PbSO4 Orthorhombic 2.5-3 6.4 Sulfates   Anhydrite 硬石膏 CaSO4 Orthorhombic 3-3.5 2.8-3 Sulfates   Ankerite 鐵白雲石 CaFe(CO3)2 Trigonal 3.5-4 3 Carbonates   Annabergite 鎳華 Ni3(AsO4)2.8H2O Monoclinic 1.5-2.5 3.2 Phosphates   Annite 鐵雲母 KFe3AlSi3O10(OH,F)2 Monoclinic 2.5-3 2.8 Silicates   Anorthite 鈣長石/鈣斜長石 CaAl2Si2O8 Triclinic 6-6.5 2.8 Silicates   Antigorite 葉蛇紋石 Mg3Si2O5(OH)4 Monoclinic 2.5-3.5 2.6 Silicates   Antimony 銻 Sb Trigonal 3-3.5 6.7 Elements   Antlerite 塊銅礬 Cu5(SO4)2(OH)6.3H2O Orthorhombic 3.5 3.9 Sulfates   Antophyllite 直閃石石棉 Mg7Si8O22(OH,F)2 Orthorhombic 5.5-6 3.4 Silicates Anyolite 紅綠寶/紅寶黝簾石 Ca2Al3Si3O12(OH) Orthorhombic 6.5 3.4 Silicates Apatite 磷灰石 Ca5(PO4)3(F,OH,CL) Hexagonal 5 3.16-3.23 Phosphates   Apjohnite 錳明礬 MnAl2(SO4)4.22H2O Monoclinic 1.5 1.9 Sulfates Apophyllite 魚眼石 (K,Na)Ca4Si8O20(F,OH)8H2O Tetragonal 4-5 2.3-2.4 Silicates Aquamarine 海藍寶 Be3Al2Si6O18 Hexagonal 7.5-8 2.6 Silicates Aragonite 霰石/文石 CaCO3 Orthorhombic 3.5-4.5 3 Carbonates   Argentite 輝銀礦 Ag2S Cubic 2-2.5 7.1 Sulphides   Argentopyrite 銀黃鐵礦 Ag2FeS3 Orthorhombic 3.5-4 4.3 Sulphides   Argyrodite 硫銀鍺礦 Ag8GeS6 Orthorhombic 2.5-3 6.3 Sulphides   Arsendescloizite 羥砷鉛鋅石/黃砷鋅鉛礦 PbZn(AsO4)(OH) Orthorhombic 4 6.1 Phosphates   Arsenic 砷 As Trigonal 3.5 5.8 Elements   Arseniosiderite 菱砷鐵礦 CaFe3+3(AsO4)3O2.3H2O Monoclinic 1.5 3.6 Phosphates   Arsenolamprite 自然砷鉍 As Orthorhombic 2 5.6 Elements   Arsenolite 砷華 As2O3 Cubic 1.5 3.9 Oxides Arsenopyrite 砷黃鐵礦/毒砂 FeAsS Monoclinic 5.5-6 6.2 Sulphides   Arsentsumebite 砷硫銅鉛礦 Pb2Cu(AsO4)(SO4)(OH) Monoclinic 3 6.5 Phosphates   Artinite 纖菱鎂礦/水纖菱鎂石 Mg2(CO3)(OH)2.3H2O Monoclinic 2.5 2 Carbonates Astrophyllite 星葉石 (K,Na)3(Fe,Mn)7Ti2Si8O24(O,OH)7 Triclinic 3 3.3 Silicates   Atacamite 氯銅礦 Cu2Cl(OH)3 Orthorhombic 3-3.5 3.8 Halides   Atelestite 砷酸鉍礦 Bi2(AsO4)O(OH) Monoclinic 4.5-5 7 Phosphates   Augelite 光彩石 Al2(PO4)(OH)3 Monoclinic 4.5-5 2.7 Phosphates   Augite 普通輝石 (Ca,Mg,Fe,Al)(Si,Al)2O6 Monoclinic 6 3.6 Silicates   Aurichalcite 綠銅鋅礦 (Zn,Cu)5(CO3)2(OH)6 Orthorhombic 1-2 4 Carbonates   Aurostibite 方金銻礦 AuSb2 Cubic 3 9.9 Sulphides   Autunite 鈣鈾雲母 Ca(UO2)2(PO4)2.10-12H2O Tetragonal 2-2.5 3.1 Phosphates   Aventurine Quartz 砂金石英  SiO2 Trigonal 6.5-7 2.64-2.69 Oxides Azurite 藍銅礦 Cu3(CO3)2(OH)2 Monoclinic 3.5 3.8 Carbonates Reference: The Complete Encyclopedia of Minerals | Gemstones of the World | 岩石與礦物圖鑑

Address: B26, 1/F, San Po Kong Plaza, 33 Shung Ling Street, San Po Kong, Kowloon, HK   Sun Moon Star Crystal House. All Rights Reserved.      Designed by Sun Moon Star Design House