An Achene is a single-seeded dry indehiscent fruit in which the seedcoat is not part of the fruit coat. This is the fruit of a Sunflower (Helianthus annuus). Other fruits of this type are: Buttercup (Ranunculus), Clematis (Clematis), Coreopsis (Coreopsis), Dahlia (Dahlia), English Marigold (Calendula), Zinnia (Zinnia).
Pyrite is used in the production of sulfur and sulfuric acid. Pyrite is sometimes an ore of gold and copper.It is also an ore of sulfur, which is used in the production of tires, explosives, disinfectants, medicines, ink, wood preservatives, dyes, matches, and sulfuric acid. Some collector specimens can be quite valuable as well.yrite is used in the production of sulfur and sulfuric acid. Pyrite is sometimes an ore of gold and copper.
Rainbow Pyrite Color Rainbow pyrite displays a shimmering rainbow of colors, including shades of gold, green, pink and blue. Pyrite crystals are normally pale-yellow, brass-yellow or gray-yellow in color, and are often tarnished with brown color owing to iron oxide.With rainbow pyrite, quality is not determined just by color, but also by the size and evenness of crystal coverage.ainbow Pyrite Color Rainbow pyrite displays a shimmering rainbow of colors, including shades of gold, green, pink and blue. Pyrite crystals are normally pale-yellow, brass-yellow or gray-yellow in color, and are often tarnished with brown color owing to iron oxide.