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Gold: Au
Comments: Well crystallized bright metallic gold specimen. Location: Red Ledge mine, Nevada Co., California. Scale: 3.5 x 6 cm in size. © Dan Weinrich
Grossular: Ca3Al2(SiO4)3
Comments: Gemmy, transparent, cinnamon-colored grossular crystals averaging 7 mm in size. Location: Jeffrey mine, Asbestos, Quebec, Canada. Scale: 3.5 x 4 x 1.5 cm. © Dan Weinrich
Hemimorphite: Zn4Si2O7(OH)2·(H2O)
Comments: Lustrous, mostly colorless to slightly reddish-brown hemimorphite crystals, the largest 13 x 20 x 2 mm in size. Location: Santa Eulalia, Chihuahua, Mexico. Scale: 25 x 10 x 25 mm. © Dan Weinrich
Kesterite: Cu2(Zn,Fe)SnS4 Mushistonite: (Cu,Zn,Fe)Sn++++(OH)6
Comments: Sharp, kesterite crystal, greenish in color due to a mushistonite coating with clear, prismatic beryl crystals. Location: Xue Bao Diang Mountains, north of Pingwu, Sichuan Province, China. Scale: Crystal size 1 cm. © Dan Weinrich
Lazulite: MgAl2(PO4)2(OH)2
Comments: Lustrous dark blackish-blue crystals of lazulite to 5 mm in size. Location: Crosscut Creek, Rapid Creek, Yukon Territory, Canada. Scale: 3 x 4.2 x 1.5 cm. © Dan Weinrich
Mimetite: Pb5(AsO4)3Cl Cerussite: PbCO3
Comments: Creamy white crystal of cerussite measuring 11 x 22 mm in size nestled nicely in a vug which is lined by bright-yellow, lustrous, prismatic mimetite crystals. The mimetites average 5 mm in length. Location: Tsumeb mine, Tsumeb, Namibia. Scale: 3.5 x 4.5 x 2.5 cm. © Dan Weinrich
Muscovite: KAl2(Si3Al)O10(OH,F)2 Apatite-(CaF): Ca5(PO4)3F Beryl: Be3Al2Si6O18 Apatite: Ca5(PO4)3(OH,F,Cl)
Comments: Pink crystals of fluorapatite with pale blue beryl (aquamarine) on books of muscovite crystals. Location: Nagar area, Gilgit district, Northern Areas, Pakistan. Scale: 3 x 3 cm. © Dan Weinrich
Mushistonite: (Cu,Zn,Fe)Sn++++(OH)6 Kesterite: Cu2(Zn,Fe)SnS4
Plagioclase: (Na,Ca)(Si,Al)4O8 Albite: NaAlSi3O8
Comments: Colorless, lustrous blocky albite crystals to 3 cm in size with a thick dusting of micaceous green micro chlorite. Location: Acushnet Quarry, Bristol Co., Massachussetts, USA. Scale: 17 x 15 x 7.5 cm matrix. © Dan Weinrich
Polybasite: [Ag9CuS4] [(Ag,Cu)6(Sb,As)2S7]
Comments: Lustrous, metallic steel-gray rosette of polybasite crystals. Location: Guanajuato, Mexico. Scale: 18 x 16 x 8 mm. © Dan Weinrich
Powellite: CaMoO4
Comments: Sharp, thumbnail-sized crystal group of yellowish brown lustrous powellite crystals, the largest measuring 15 x 18 mm in size. Location: Pandulane quarry, Nasik district, Maharashtra, India. Scale: 20 x 25 x 16 mm. © Dan Weinrich
Pyrrhotite: Fe(1-x)S (x=0-0.17)
Comments: Lustrous sharp crystals of pyrrhotite to 3.5 cm in size with minor sphalerite and chalcopyrite. Location: Nikolaevskiy mine, Dal'negors, Primorskiy Kray, Russia. Scale: 4 x 5 x 5.5 cm. © Dan Weinrich
Rosasite: (Cu,Zn)2(CO3)(OH)2
Comments: Rosasite on malachite after azurite. Blocky crystals of azurite to 2.5 cm in size, completely altered to malachite, then coated by pale sky-blue rosasite. Location: Silver Bill mine, Gleeson, Cochise Co., Arizona, USA. Scale: 4 x 7.5 x 2 cm. © Dan Weinrich
Scolecite: CaAl2Si3O10·3(H2O)
Comments: Delicate cluster spray of colorless transparent acicular crystals of scolecite. The scolecites measure to 3 mm in thickness. Location: Nasik district, Maharashtra, India. Scale: 5 x 3.5 x 9.5 cm. © Dan Weinrich
Silver: Ag
Comments: Numerous fine, silver wires to 4 mm in diameter attached to a matrix of massive white calcite and minor sulfides. Location: Himmelsfahrt mine, near Freiberg, Saxony, Germany. Scale: 4 x 4.5 x 6 cm. © Dan Weinrich
Smithsonite: ZnCO3 Creedite: Ca3Al2(SO4)(F,OH)10·2(H2O)
Comments: Purple transparent crystals of creedite to 6 mm on matrix of creamy botryoidal crystalline smithsonite. Location: Level 8 San Antonio mine, Santa Eulalia, Chihuahua, Mexico. Scale: 7 x 3.5 x 2 cm. © Dan Weinrich
Sphalerite: (Zn,Fe)S
Comments: Highly lustrous, black, complex sphalerite crystals to 15 mm in size completely covering the top of a sulfide matrix. Location: Nanisivik mine, Baffin Island, Northwest Territories, Canada. Scale: 6.5 x 7.5 x 1.8 cm. © Dan Weinrich
Stephanite: Ag5SbS4
Comments: Group of steel gray lustrous stephanite crystals to 8 mm in diameter. Caleb Simkoff Collection. Location: Freiberg, Saxony, Germany. Scale: 10 x 12 x 23 mm. © Dan Weinrich
Stibiconite: Sb+++Sb+++++2O6(OH)
Comments: Yellowish druses of microscopic stibiconite pseudomorphic after sharply terminated stibnite crystals. Location: Xi Kuang Shang mine, Len Shui Jiang, Hunan Province, China. Scale: 31x11x8 cm. © Dan Weinrich
Stilbite-Ca: NaCa4[Al8Si28O72]·n(H2O) (n=28-32) Thomsonite-Ca: NaCa2Al5Si5O20·6(H2O)
Comments: Peach colored stilbite crystals to 3.5 cm in size is hosting two finely crystallized balls of powdery white thomsonite. Location: Near Jalgaon, Maharashtra State, India. Scale: Picture size 15 cm. © Dan Weinrich