It is a particularly unusual gem because it exhibits a special optical property known as tenebrescence
Red Lightning Agate is predominantly red with swirls and mottling of green
black or brown veins running through it in web to like patterns
plant materials
Pakimer Quartz is Herkimer style Quartz from Pakistan
Kyanite 3-5mm Graduated Faceted Rondelle - 15-16 Inch Supplies-Resources-Tools-Pliers-Cutters It is a particularly unusualKyanite often occurs as long, bladed, striated crystals, transparent or translucent with a pearly luster. An aluminum silicate mineral, it may appear in white, pink, yellow, orange, green, blue, gray and black. In addition to its value as a gemstone, Kyanite is also extremely useful in industrial applications due to its high heat resistance. It is often used in kiln furniture and foundry molds, as well as for brake shoes, grinding wheels and cutting