Includes all 6 crystal classes and presents the physical properties: hardness, habit, luster, cleavage, specific gravity, color, fluorescence, and streak.- $15.00 24" X36" and it LOOKS so neat. would love for kids room! Picture-Black Posters, For Kids, Nature, Crystals Minerals, Minerals Charts, Gemstones And Crystals, Rocks, Earth Science, Minerals Posters
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Osmium twinning / Osmium is a hard, brittle, blue-gray or blue-black transition metal in the platinum family and is the densest naturally occurring element, with a density of 22.59 g/cm3 (slightly greater than that of iridium and twice that of lead).
+ Rutilated Quartz | Rutilated quartz is quartz stone with rutile enclosures. Rutile is a mineral that is made up mostly of titanium dioxide, or TiO2. As a mineral, rutile is very high on the refractive index and disperses more than almost any other mineral.