Microcline feldspar with smoky quartz Vanadinite This piece has a very

This piece has a very good UV reaction

giving the smoky quartz a witchy appearance

it has a frosted luster with a sheen effect

While commonly called red chalcedony

you can see inverted striated patterns

Microcline feldspar with smoky quartz Vanadinite This piece has a veryLocale: La Mancuerna, Tatatila, Veracruz, Mexico Approx size: 12. 5" Approx weight: 15100g Microcline is a type of feldspar that forms opaque blocky geometric crystals, the groupings often resembling cities and architectural forms. The mineral is near white with parallel striations; this is called "perthitic" texture and is common in microcline, caused by the intergrowth of two varieties of feldspar. Feldspar likes to grow as twinned crystals, meaning