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19.02 Brazil container received with 11 new rough stones (Cheetah, Bronzite, Hematite, Blue Quartz) 20.02 Tucson shipment with 33 new books, fossil whale ossicles, knightia fish and 66 new stone products. 21.02 Madagascar container received with 3 new types of stone. A total of 90 new products, come to Berghem or order in the webshop. (Note: Friday 28 and Saturday 29 February a.s. closed!)

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Lizardite tumbled stones from Norway

Lizardiet 2_product

Lizardite tumbled stones from Norway


Lizardite tumbled stones from Norway


According to some gem lovers, the most beautiful "green" in the world. The fact is that the stone can not be compared with anything.



More information

The mineral serpentine or clinochrysotiel is an iron-magnesium-silicate having the chemical formula (Mg, Fe) 3Si2O5 (OH) 4. It belongs to the fylosilicaten. The amorphous mineral can be red, yellow, white and green. The green color is typical of the mineral in the mantle rock serpentinite. The hardness is 2.5 to 4, depending on the composition and serpentine has an average density of 2.59. One of these species is of asbestos. The inhalation of this kind is harmful to health. The mineral serpentine, like the rock serpentinite, named after the Latin word serpens, which means "serpent". The form in which the minerals have grown reminiscent of the rock in the shape of a snake. It was also used to be used as a remedy for snake bites. The other name for serpentinite, clinochrysotiel, is derived from the Greek words clinos, chrysos and tilos (or "crooked, crooked", "gold" and "fiber"). It is so called by the gold-colored fibrous structure that can take the mineral. Serpentine is indicative of mineral serpentinite, a peridotite often converted by hydrothermal activity. Under the influence of pressure and temperature of the olivine and pyroxene from the mantle rock have been converted into serpentine. This is sometimes called serpentinitisatie. The chemical reaction equation is: 4Mg2SiO4 (olivine) + 4H2O (l) + 2CO2 (aq) → Mg6Si4O10 (OH) 8 (serpentine) + 2MgCO3 (magnesite) Serpentine is therefore a mineral that is found in those areas where mantle rock on surface has come, usually in orogenen. In Greece and in the Alps, serpentine opened widely.