Amethyst is a violet or purple variety of quartz often used in making jewelry. The ancient Greeks and Romans believed amethyst would help prevent drunkenness, and it symbolized having philosophical, intellectual and spiritual understanding. Whether you believe this or not, it sure is a neat gift to have on someone’s desk. Beautifully intact, this chunk will wow your friends and definitely be a conversation piece. Use it for home or the classroom! Recommended for older children due to potentially sharp points on the cluster.
Note: Please be aware that this is a natural mineral and as such each piece is one of a kind! The one you receive may not be exactly the same as the one pictured but it will be similar. They come in irregular shapes, sizes and weights and are featured in a variety of colors.
Size: Sizes generally range from 3.5in (9cm) x 1.75in (4.5cm) x 1.5in (4cm) to 6.75in (17cm) x 3.25in (8.5cm) x 2.5in (5.75cm)
High-quality green laser pointer projects a green dot up to an incredible 2 miles away.
Do micro-controller projects and program them using your own computer!
Over 300 electronics projects in this kit will keep the young scientist busy!
Use this kit to introduce electromagnetic principles in the classroom setting!
Everything you need to setup your own dancing Oobleck (non-Newtonian fluid) apparatus!
Build a tumbling robot that gets up right after it has fallen down, without any outside help!