Quartz is one of the most common minerals to be found on earth today. This quartz cluster is an essential item to have in any good rock collection. You can also use it as part of a science project, for classroom lessons, or even as a unique stocking stuffer for the holiday season.
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. Price is per each piece.
Working model representing the sun, earth, and moon and their relationships.
Ever wonder how to survive in the wilderness? These cards can help!
Build a model car that runs on hydrogen gas using a unique reversible fuel cell!
Watch this laser pointer emit a cool purple beam!
This glass Erlenmeyer mug makes an excellent gift!
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.