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.
Pyrite is often called âFoolâs Gold,â though there is nothing foolish about this mineral. Within its gleaming beauty is a stone of hidden fire, one that can be sparked to life by striking it against metal or stone.s a talisman, Pyrite is a unique protector, drawing energy from the Earth through the physical body and into the aura creating a defensive shield against negative energies, environmental pollutants, emotional attack and physical harm.