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Description
Under proper conditions, pure minerals will develop into a crystal form characteristics of that mineral. This collection includes specimens that exhibit crystal forms from the six crystallographic systems. Includes a study guide defining and explaining terminology of crystals. 15 crystal specimens, sizes vary with specimens available, in a compartmented tray, Grades 6-12. Product documentation.
COLLECTION OF NATURAL CRYSTALS
Crystal form is a valuable tool in the identification of minerals, but requires careful study. Perfect crystals are rare, but fragments and imperfect crystals will give basic information. The six crystal systems and examples are shown below.
CRYSTAL MINERAL SYSTEM FORM
1. Halite Isometric Cube
2. Magnetite Isometric Octahedron
3. Pyrite Isometric Cube
4. Apophyllite Tetragonal Prism & Pyramid
5. Beryl(Aquamarine) Hexagonal Prism
6. Apatite Hexagonal Prism & Dipyramid
7. Quartz Hexagonal Prism & Rhombohedron
8. Corundum Hexagonal Prism
9. Tourmaline Hexagonal Prism & Pinacoid
10. Aragonite Orthorhombic Prism & Pinacoid (Pseudo-hexagonal appearance is due to twinning!)
11. Topax Orthorhombic Prism & Pinacoid
12. Danburite Orthorhombic Prism & Pinacoid
13. Glauberite Monoclinic Prism & Pinacoid
14. Orthoclase Monoclinic Prism & Pinacoid
15. Amazonite Triclinic Prism & Pinacoid
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