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Apophyllite: KCa4(Si4O10)2F·8(H2O)
Comments: Mint green to clear apophyllite flat top crystals in a circular stellate cluster on pink stilbite. Location: Rahuri, Maharashtra State, India. Scale: Specimen size 10 cm. © Kevin Ward
Charoite: K5Ca8(Si6O15)2(Si2O7)Si4O9(OH)·3(H2O) Tinaksite: K2Na(Ca,Mn++)2(Ti,Fe)O[Si7O18(OH)]
Comments: Polished slab of deep purple chariote with inclusions of black augite, white feldspar and orange tinaksite. Location: Murun, Siberia, Russia. Scale: Picture size 10 cm. © Kevin Ward
Chrysoberyl: BeAl2O4
Comments: Chrysoberyl (Alexandrite) crystal on matrix with excellent color change (Daylight, Tungsten Bulb). Location: Malyshevo, Yekaterina Oblast', Urals, Russia. Scale: Crystal size 1.2 cm. © Kevin Ward
Elbaite: Na(Li,Al)3Al6(BO3)3Si6O18(OH)4
Comments: Gemmy-blue crystal of elbaite (Indicolite) tourmaline. Location: Morro Redondo Mine in Minas Gerais, Brazil. Scale: Crystal size 8.5 cm. © Kevin Ward
Linarite: PbCu(SO4)(OH)2
Comments: Deep blue, blocky, linarite crystal blades in quartz vug and breccia matrix. Location: Grand Reef Mine in Graham County, Arizona, USA. Scale: 8 cm by 7 cm. © Kevin Ward
Mercury: Hg
Comments: Small silvery droplets of mercury on tan-colored rock matrix. Location: Sonoma Co., California, USA. Scale: Picture size 5 cm. © Kevin Ward
Mottramite: PbCu(VO4)(OH)
Comments: Botryoidal green mottramite on white calcite. Location: Tsumeb Mine,Tsumeb, Namibia. Scale: 7.5 cm by 8 cm. © Kevin Ward
Phlogopite: KMg3(Si3Al)O10(F,OH)2 Lazurite: Na3Ca(Al3Si3O12)S
Comments: Gemmy brownish phlogopite crystals on blue lazurite (lapis) matrix with minor pyrite. Location: Koksha Valley, Badakhshan Province, Afghanistan. Scale: 10 x 11.5 cm. © Kevin Ward
Quartz: SiO2
Comments: Slightly smokey quartz overgrown with rose quartz. Note the exceptional transparency of the rose quartz. Location: Lavra da Ilha, Taquaral, Minas Gerais, Brazil. Scale: 10 cm by 5.2 cm. © Kevin Ward
Smithsonite: ZnCO3
Comments: Yellow, cadmian-bearing smithsonite crystalline aggregate. Location: Rush Mine in Marion County, Arkansas, USA. Scale: 6.5 x 11 cm. © Kevin Ward