Calcite is the most common mineral next to quartz. Optical calcite is less common. It is shaped sort of like a rectangle which has been stretched (a rhombohedron). It is clear with a glassy luster and makes objects placed behind it appear double (due to different indices of refraction of light it has). Flawless specimens are used in optical instruments.
Great for science projects or classroom collection.
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.
Build your own windmill generator kit by recycling a plastic bottle!
A beautiful desk or bookshelf accessory for the reading fanatic in your family!
Every kid needs one of these spheres!
Exciting magnet exploration for ages 8 and up!
Ever wonder how to survive in the wilderness? These cards can help!
The LCD Digital Microscope II is a professional biological microscope at an affordable price. Up to 1600X with digital zoom!
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