Check the listing for details. Calcium metal - Acrylic Element cube 50x50x50mm Element block - Museum grade. Condition: New. Listed at 99.00 USD. Acrylic Element cube - Calcium Ca - 50mm embedded is a shiny crystal of calcium metal sealed in an ampoule under argon The innovation! Selected element samples in amply amount embedded in 50x50x50mm first-class crystal clear acrylic (not cheap resin!) . Totally lightfast, high gloss polish. The text is embedded inside! Hand crafted! Made in the European Union! Each acrylic block is a unique and individual piece! EXTREMELY eye-catching! These original acrylic cubes are used in many important and famous periodic table collections allover the world! Each cube comes in its separate original box! Complete illuminated displays with our cubes are available on request The Sensation! Acrylic Element-blocks NEW! ~ 0.5 grams sublimed dendritic crystalline Calcium ampouled under Argon! Discovered in 1808 by Sir Humphrey Davy in London. Calcium is a silvery white metal which is obtained by the electrolysis of molten calcium chloride. It is one of the most abundant metal elements on Earth (41000 ppm), but it never occurs as the pure element, the main deposits being limestone (CaCO3), Dolomite (CaCO3.MgCO3) and Gypsum (CaSO4.2H2O). Calcium compounds have many applications; for example, calcium chloride is used extensively to dry gases as it is capable of absorbing moisture from the atmosphere. Calcium oxide (lime), produced by heating limestone, has many applications including the chemical, agricultural, construction and water industries. Calcium is an essential constituent of the human body which contains, on average, 1kg. of the element. Source: ©Goodfellow.com scope of delivery You get one Acrylic Element cube - Calcium Ca - 50mm shipping fees I am happy to combine shipping to save you money! Please contact me!