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>> Group(s) : carbonates
See the pictures :

Name honoring James Smithson (1765-1829), founder of the Smithsonian Institution in Washington (USA).
It is also called bonamite.

Exploited sites

Mineral commonly found in oxidation zones of zinc-bearing veins: Australia, Spain, United States (New Mexico), Greece (Attica), Mexico (Sonora), Italy (region of Iglesias, Sardinia), Namibia (Tsumeb), Zimbabwe (Broken Hill) ...

See pictures of the mines / other pictures

Use in jewelry

It is cut cabochon but it’s mainly a collection stone.
Almost transparent varieties or translucent blue ones from Mexico are very popular.
Generally smithsonite the more is transparent and colorful, the more it is appreciated: such as red or purple varieties.

Daily care and precautions

fragile, sensitive to schocks

Looking alike stones

chrysocolla , hemimorphite , turquoise

Historical healing properties

It would be a nice stone, sweet but it must be carefully chosen and apply the correct shade on the right chakra. Which is difficult because there are only found slices of mixed colors.
It should be for not pubescent girls, adolescents because it is very soothing.
The green smithsonite should be used on the heart chakra and would have soothing qualities.

Chemical characteristics

zinc carbonate

Physical characteristics

Main color : blue

Other colors : pink, green

Color of streak : white

Luster : vitreous, pearly

Hardness : 4.0 to 5.0

Density : 4.10 to 4.65

Cleavage : perfect

Fracture : uneven

Optical properties

Transparency : translucent, opaque

Refractive Index : 1.620 - 1.850

Double refraction : 0.220

Strong, negative uniaxial

visible double refraction : yes

Dispersion : 0.020 (0.010)

Pleochroism : variable

Number of colors : 1

Fluorescence : variable

Blue, pink, brown


Compact masses, fibro-radiated or banded, botryoidal


Crystal system : trigonal

Other informations

Astrological sign : Gemini, Sagittarius

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  • Gemini Gemini
  • Sagittarius Sagittarius