Gem Type: Fossilized Quartz

Name: Gyrolite spheres with Apophyllite on Prehnite Druze

66 KG /  3 lbs 10 ounces

is known for producing some of the world's most beautiful and intriguing impactites

Hourglass Selenite Crystal | Gypsum Crystal | Oklahoma USA Chalcophanite Gem Type: Fossilized QuartzThese are cabinet sized Hourglass Selenite Crystals from Salt Plains, Oklahoma. Oklahoma designated the unique hourglass selenite crystal as the official state crystal in 2005 after elementary school students from Bryant and Red Oak School petitioned the state legislature. Hourglass selenite crystals are found only on the salt plains of Oklahoma, a unique 11,000 acre geological area. The salt plains were formed by repeated flooding by sea water