Igneous, Metamorphic & Sedimentary Rock Collection

Bonus - Free Student Magnifier with each set (# 7101-1), total of 6 Magnifiers!

Save when you buy this lot of 6 Mineral Collections for a total of 50 specimens. Included Collections: Unusual Properties, Cleavage, Fracture, Streak & Color, Scale of Hardness, and Tenacity.

Minerals Unusual Properties of Minerals This collection offers an exciting look at some of the most peculiar physical properties exhibited by minerals. Properties illustrated include double refraction, magnetism, taste, fluorescence, thermal expansion, and conductivity. Detailed card is included. 15 specimens approximately 1 x 1 1/2 Inches.

Minerals Cleavage Collection Cleavage is a readily recognizable property of some minerals and follows the internal crystal structure of that mineral. Terms used in a study of crystallography apply to the cleavage plans. Detailed card is included. 6 specimens approximately 1 1/2 x 1 1/2 Inches.

Minerals Fracture Collection Some minerals (and rocks) do not demonstrate a parting or cleavage along specific planes, but they do have a consistency in how they break. The resulting surfaces are described as conchoidal (obsidian), uneven (hornblende), etc. The important types of fracture are demonstrated with this collection. Detailed card is included. 6 specimens approximately 1 1/2 x 1 1/2 Inches.

Minerals Streak & Color Collection Some minerals leave a colored streak on unglazed tile, providing a clue to identifying that mineral. Examples of this property can be demonstrated with this collection. Includes a detailed card and streak plate (unglazed porcelain). 8 specimens approximately 1" x 1 1/2 Inches.

Minerals Scale of Hardness Collection This collection is the traditional Mohs Scale which assigned a level of hardness to ten key minerals with Talc #1 (the softest) and Diamond #10 (the hardest). Detailed card is included. The first 9 minerals are in this set. Diamond is not included in this set. Set includes nine specimens approximately 1 x 1 1/2 Inches.

Minerals Tenacity Collection Using terms like brittleness, elasticity, flexibility, malleability, and sectility, students will compare the tenacity of these six mineral specimens. Coded by number in a compartmentalized container. Set includes 6 specimens approximately 1 x 1 1/2 Inches.

Measurements are approximate. Each included set is also available for individual sale. Full product descriptions can be viewed on each product page.