This large chunk of Black Tourmaline in Quartz, 2-3 inches in diameter, is great for any mineral collection.
Tourmaline is one of the most complicated groups of silicate minerals. Whe tourmaline is found within quartz, the quartz is known as ’tourmalinated’. Black Tourmaline is naturally striated and rich black, making it a beautiful stone to set in jewelry. Tourmaline with quartz is considered a prized specimen for collectors.
Ever wonder how to survive in the wilderness? These cards can help!
Use this temperature-controlled soldering station for a variety of soldering applications!
Defy gravity with this cool balancing eagle!
This glass Erlenmeyer mug makes an excellent gift!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
This simple but amusing magnetic toy will keep you busy for hours!
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