Green serpentine mineral specimen with layered texture and dark inclusions, natural rock formation

LIZARDITE VAR ANTIGORITE, TULLAH TASMANIA

60 65 25 63
$60.00
Sale price  $60.00 Regular price 
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Green serpentine mineral specimen with layered texture and dark inclusions, natural rock formation

LIZARDITE VAR ANTIGORITE, TULLAH TASMANIA

$60.00
Sale price  $60.00 Regular price 
Shipping calculated at checkout.
Size (HWD in mm) weight in gr60 65 25 63

Lizardite is a mineral belonging to the serpentine subgroup, characterized by the chemical formula Mg3(Si2O5)(OH)4, and is the most prevalent mineral within this category. It is also classified under the kaolinite-serpentine group. Lizardite can form a solid-solution series with the nickel-rich mineral népouite, which has the formula Ni3(Si2O5)(OH)4 as its pure end-member. Intermediate compositions, represented as (Mg,Ni)3(Si2O5)(OH)4, can occur, featuring varying amounts of magnesium and nickel. However, lizardite is significantly more common than the rarer népouite, which typically arises from the alteration of ultramafic rocks. The extremely fine-grained, scaly variety of lizardite, sometimes referred to as orthoantigorite, constitutes a large portion of the serpentine found in "serpentine marbles." This mineral exhibits a triclinic crystal system, possesses perfect cleavage in one direction, and can appear in shades of white, yellow, or green. Lizardite may be translucent or opaque and has a distinctive soapy texture. In some cases, it can form pseudomorphs after minerals like enstatite, olivine, or pyroxene, leading to the designation of bastite, which may display a silky luster.

 

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