What is smithsonite stone?

What is smithsonite stone?

Smithsonite is a zinc carbonate that belongs to the calcite group of minerals. The stone, also known as Zinc Spar, appears in a variety of colors depending on the trace impurities that are in its composition: Light to dark blue or green – with copper impurities. Light to dark pink or purple – with cobalt impurities.

Is smithsonite a rare mineral?

Smithsonite is a zinc carbonate mineral with gemstone quality and is sometimes referred to as zinc spar. They are rare and lesser-known gemstones that are sought mostly by gem collectors. The color of smithsonite varies depending on the trace impurities found in the gem.

What makes smithsonite valuable?

Smithsonite occurs across the globe, but facetable crystals are extremely rare. These gems can show a wide range range of rich colors but are too soft for most jewelry use. However, high dispersion makes properly faceted smithsonites truly magnificent collector’s pieces.

What is the value of smithsonite?

$950
Smithsonite, a zinc carbonate mineral commonly found in the oxidized part of metallic deposits around the world, is treasured by collectors for it’s vibrant color spectrum and frequent association with other beautiful ‘secondary’ minerals….Smithsonite.

Where is smithsonite stone found?

Smithsonite is a secondary mineral found in the rocks above and around many important zinc deposits. These smithsonite occurrences are often seen at the surface or at shallow depths. As a result, smithsonite was one of the earliest zinc minerals to be discovered and mined by pioneer metallurgists.

What is smithsonite known for?

Smithsonite, also known as turkey fat or zinc spar, is the mineral form of zinc carbonate (ZnCO3). 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.

Where is smithsonite stone from?

Geologic Occurrence. Smithsonite is a secondary mineral found in the rocks above and around many important zinc deposits. These smithsonite occurrences are often seen at the surface or at shallow depths. As a result, smithsonite was one of the earliest zinc minerals to be discovered and mined by pioneer metallurgists.

What is smithsonite made out of?

zinc carbonate
Its typical globular habit and often vibrant colors make this a desirable mineral for collectors. Smithsonite is composed of zinc carbonate, but the zinc may be partially replaced with other elements.

How do I know which smithsonite I have?

Physical Properties of Smithsonite Usually brown or gray, but may be colorless, white, yellow, green, blue or pink. The colors can be spectacular, and that makes smithsonite popular with people who collect mineral specimens and gems. Perfect rhombohedral cleavage. Uneven to conchoidal fracture.

Where is smithsonite found in the US?

Smithsonite from Alta, Little Cottonwood Canyon, Wasatch Mts, Salt Lake Co., Utah, United States.

Is smithsonite a crystal?

Smithsonite is a variably colored trigonal mineral which only rarely is found in well formed crystals. The typical habit is as earthy botryoidal masses….

What kind of rock is smithsonite?

Smithsonite, also known as turkey fat or zinc spar, is the mineral form of zinc carbonate (ZnCO3). Historically, smithsonite was identified with hemimorphite before it was realized that they were two different minerals….