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Quartz (Var: Rutilated Quartz)
Quartz Formula:SiO2 Colour:Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc. Lustre:Vitreous Hardness:7 Specific Gravity:2.65 - 2.66 Crystal System:Trigonal Rutile Formula:TiO2 Colour:Blood red, brownish yellow, brown-red, yellow, greyish-black, black, brown, bluish or violet Lustre:Adamantine, Metallic Hardness:6 - 6½ Specific Gravity:4.23 Crystal System:Tetragonal
Minerals
Wang Nyang Museum
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Realgar
Formula:As4S4 Colour:Dark red to orange-red Lustre:Resinous, Greasy Hardness:1½ - 2 Specific Gravity:3.56 Crystal System:Monoclinic
Minerals
Wang Nyang Museum
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Orpiment
Formula:As2S3 Colour:Orange-yellow to lemon-yellow Lustre:Pearly Hardness:1½ - 2 Specific Gravity:3.49 Crystal System:Monoclinic
Minerals
Wang Nyang Museum
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Cinnabar
Formula:HgS Colour:Tint or shade of red; cochineal red, brownish red, silvery dark red; silvery-grey; may darken due to formation of mercury nanoparticles Lustre:Metallic Hardness:2 - 2½ Specific Gravity:8.176 Crystal System:Trigonal
Minerals
Wang Nyang Museum
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Carrolite
Formula:CuCo2S4More specifically Cu1.2+(Co2.4+)2(S1.5-)4 Colour:Bright silver color Lustre:Metallic Hardness:4½ - 5½ Specific Gravity:4.5 - 4.8 Crystal System:Isometric
Minerals
Wang Nyang Museum
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Stibnite
Formula:Sb2S3 Colour:Lead-gray with pale blue tint Lustre:Metallic Hardness:2 Specific Gravity:4.63 Crystal System:Orthorhombic
Minerals
Wang Nyang Museum
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Covellite
Locality:Leonard Mine, Butte, Montana,USA (https://www.mindat.org/loc-3882.html) Formula:CuS"Extended" formula is Cu+4Cu2+2(S2)2S2 (Goble, 1985). Colour:Indigo-blue or darker, inclining towards blue-black, often iridescent with purplish, deep red, and brassy-yellow reflections. Lustre:Sub-Metallic Hardness:1½ - 2 Specific Gravity:4.6 - 4.76 Crystal System:Hexagonal
Wang Nyang Museum
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Creedite
Locality:Qinglong Mine (Dachang Mine), Dachang Sb ore field, Qinglong County, Qianxinan, Guizhou, China (https://www.mindat.org/loc-33918.html) Formula:Ca3Al2(SO4)(OH)2F8 · 2H2O Colour:white, violet, purple, colourless, orange; colourless in transmitted light. Lustre:Vitreous Hardness:4 Specific Gravity:2.713 - 2.73 Crystal System:Monoclinic
Wang Nyang Museum
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Fluorite
Locality: Riemvasmaak, Northern Cape, South Africa (https://www.mindat.org/loc-264474.html) Formula:CaF2 Colour:Purple, lilac, golden-yellow, green, colourless, blue, pink, champagne, brown. Lustre:Vitreous, Dull Hardness:4 Specific Gravity:3.175 - 3.56 Crystal System:Isometric
Wang Nyang Museum
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Topaz
Locality:Mogok Township, Pyin-Oo-Lwin District, Mandalay Region, Myanmar (https://www.mindat.org/loc-24345.html) Formula:Al2(SiO4)(F,OH)2 Colour:Colourless, white, pale blue, light green, yellow, yellowish brown, or red Lustre:Vitreous Hardness:8 Specific Gravity:3.4 - 3.6 Crystal System:Orthorhombic
Wang Nyang Museum
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Mimetite
Locality:Potosi Mine,West Camp,Santa Eulalia Mining District,Chihuahua,Mexico (https://www.mindat.org/loc-2312.html) Formula:Pb5(AsO4)3Cl Colour:Pale-yellow, yellowish-brown, orangish-yellow, orangish-red, red, green, white, colorless; colourless or faintly tinted in transmitted light. Lustre:Sub-Adamantine, Resinous Hardness:3½ - 4 Specific Gravity:7.24 Crystal System:Hexagonal
Wang Nyang Museum
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Forsterite (Var: Peridot)
Locality:Sapat Gali, Naran, Kaghan Valley, Mansehra District, Khyber Pakhtunkhwa Province, Pakistan (https://www.mindat.org/loc-2536.html) Formula:Mg2SiO4 Colour:Green, pale yellow or white. Lustre:VitreousHardness:7 Specific Gravity:3.275 Crystal System:Orthorhombic
Wang Nyang Museum
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Zircon
Locality:Astore Valley, Astore District, Gilgit-Baltistan, Pakistan (https://www.mindat.org/loc-194232.html) Formula:Zr(SiO4)May contain minor U, Th, Pb, Hf, Y/REE, P, and others. Colour:Colourless, yellow, grey, reddish-brown, green, brown, black, rarely blue Lustre:Adamantine, Vitreous, Greasy Hardness:7½ Specific Gravity:4.6 - 4.7 Crystal System:Tetragonal
Wang Nyang Museum
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Adamite
Locality:Ojuela Mine,Mapimi,Durango,Mexico (https://www.mindat.org/loc-2318.html) Formula:Zn2(AsO4)(OH) Colour:Ideally white, colourless, frequently pale yellow, honey-yellow, brownish yellow, rose red; blue, pale green to green, may be zoned; bright green (Cu-bearing); bright pink, purple (Co-bearing) Lustre:Vitreous, Sub-Vitreous, Waxy, Greasy Hardness:3½ Specific Gravity:4.32 - 4.48 Crystal System:Orthorhombic
Wang Nyang Museum
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Amethyst , Hematite
Locality:Orange River Region,South Africa (https://www.mindat.org/loc-31155.html) (Quartz) Formula:SiO2 Colour:Colorless, purple, rose, red, black, yellow, brown, green, blue, orange, etc. Lustre:Vitreous Hardness:7 Specific Gravity:2.65 - 2.66 Crystal System:Trigonal (Hematite) Formula:Fe2O3 Colour:Steel-grey to black in crystals and massively crystalline ores, dull to bright "rust-red" in earthy, compact, fine-grained material. Lustre:Metallic, Sub-Metallic, Dull, Earthy Hardness:5 - 6 Specific Gravity:5.26 Crystal System:Trigonal
Wang Nyang Museum
