Smithsonite

Smithsonite is safe to handle in its finished, polished state, but excessive exposure to its dust may lead to heavy metal poisoning. When cutting or polishing smithsonite, wear a dust mask to minimize dust inhalation. Store it in a sealed container in a well-ventilated area, away from children and pets. For those involved in crystal healing, never put it in your mouth.

Smithsonite is a variably colored trigonal mineral which only rarely is found in well formed crystals. The typical habit is as earthy botryoidal masses. It has a Mohs hardness of 4.5 and a specific gravity of 4.4 to 4.5.

Smithsonite occurs as a secondary mineral in the weathering or oxidation zone of zinc-bearing ore deposits. It sometimes occurs as replacement bodies in carbonate rocks and as such may constitute zinc ore. It commonly occurs in association with hemimorphite, willemite, hydrozincite, cerussite, malachite, azurite, aurichalcite and anglesite. It forms two limited solid solution series, with substitution of manganese leading to rhodochrosite, and with iron, leading to siderite.

Smithsonite is an important source of zinc in some areas. Zinc is added to vitamin supplements and is used in applications such as pennies, tires, paint, sunscreen, batteries, galvanizing metals, and making alloys. Smithsonite also used as an ornamental stone and gemstone.

Historically, smithsonite was identified with hemimorphite before it was realized that they were two different minerals. The two minerals are very similar in appearance and the term calamine has been used for both, leading to some confusion. The distinct mineral smithsonite was named in 1832 by François Sulpice Beudant in honor of English chemist and mineralogist James Smithson (c.1765–1829), whose bequest established the Smithsonian Institution and who first identified the mineral in 1802.

Smithsonite is often used to reduce stress and calm emotions. Many say it is a powerful stone that helps declutter the mind, improve clarity and allow for better resolutions when used during challenging times. It is believed to help with depression, low energy levels, and shyness. Use of this stone can empower a person to find their inner strengths and become confident in their decision making.