Yellow Herkimer Quartz 1-3mm Point - 15-16 Inch Stone Type_Super Seven Brazilian Amazonite is an opaque

Brazilian Amazonite is an opaque blue to green to light green stone

who performed early research into the many optical properties of mica

When they're dry

Variscite is usually green

Stone Description -

Yellow Herkimer Quartz 1-3mm Point - 15-16 Inch Stone Type_Super Seven Brazilian Amazonite is an opaqueHerkimer Quartz, also known as Herkimer Diamond, is transparent quartz crystal with brilliant sparkle. The crystal naturally forms with 18 facets, with points at both ends (double terminated). It may be completely clear and colorless or smoky, sometimes containing rainbow inclusions, air bubbles or black carbon deposits. The mineral is named for the place where it is principally found, Herkimer County, New York.