Emerald quartz is a green variety of quartz. Quartz is a mineral that is widely used in ornamental work and industry, where its reaction to electricity makes it valuable in electronic instruments. This specimen is a great addition to any rock collection, or for teaching purposes in the classroom.
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 ones pictured but it will be similar. Price is per each piece. They come in irregular shapes, sizes and weights.
This kit focuses on teaching children about electricity and how electronic devices work!
This high precision gyroscope will amaze you with rotational speed and ease of precision.
NEW 2016 DESIGN! This hip red tee features Pi to 1000 decimal places on an ultra soft 100% cotton shirt.
Easily assemble a working alarm motion detector!
This project book and sample kit introduces you to shape-memory alloy technology!
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