Blue Sapphire - Tumble childbirth Tips & Tricks: These are

Tips & Tricks: These are phenomenal sets for teaching kids about stones

Description: By far

Simple Fossil Cards that show 8 fossil pieces affixed to them

Era: Tertiary

Chemical Composition: Be3Al2(SiO3)6

Blue Sapphire - Tumble childbirth Tips & Tricks: These areMined from: India Description: Sapphire is a precious gemstone belonging to the corundum family, which is a crystalline form of aluminum oxide. It is the second hardest natural mineral, ranking 9 on the Mohs scale, just below diamond. The color of blue sapphires is caused by the presence of trace amounts of titanium (Ti) and iron (Fe), which replace some of the aluminum atoms in the crystal lattice. These titanium and iron ions absorb certain