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Larimar as jewellery

An owner of a ring from Larimar Copenhagen, is the owner of a rare blue variety of a silicate mineral pectolite.

Colour: Blue, Green
Luster: Silky
Crystal system: Triclinic crystal system
Chemical formula: NaCa₂Si₃O₈(OH)
Hardness (Mohs hardness scale): 4.5 – 5
Mineral class: Pectolite
Transparency: Translucent, Opaque

In relation to the Larimar stone it falls under the category of semi-precious stone. With Larimar, perhaps more than with any other gemstone, beauty is in the eye of the beholder. Some prefer the very light blues of Larimar, others prefer Larimar stones that
tend towards the green, and while others prefer Larimar with mineral spots, some prefer Larimar with no patterning at all.

In general, quality grading is according to coloration and the typical mineral crystal configuration in the stone. Larimar also comes in green and even with red spots, brown strikes, etc., due to the presence of other minerals and/or oxidation. But the more intense the blue colour and the contrast in the stone, the higher and rarer is the quality.

There are several factors typically used to grade the stone, with colour and patterning being the primary ones:

One, Colour – the deeper, “volcanic” blues are considered to be “best”
Patterning – the richer, more interesting, the better
Luster – is it glossy
Luminosity – does it seem to “glow” or have an inner light
Clarity – is it free of obvious defects like pits, cracks, carbon deposits, etc.
Translucence – can light pass thru a portion of the stone
Chatoyance – a luminous band with a silky luster, like that typical of cat’s-eye.

There is no one particular factor that determines the grade; it is a combination of factors. The depth of colour alone may not “make or break” the grade; the pattern and luminosity may bring up the grade of a stone whose colour may not be as deep as others.
The ring of the Larimar stone is made of 925 sterling silver. Thus, the ring is made of precious metal.

Because pure silver is very soft, the silver used for the rings of Larimar Copenhagen is alloyed with copper, with finenesses of 925/1000.
The purity, a 92,5%-pure alloy is described as “0.925 fine” is apparent with the silver stamp is inside the ring.

As owner of a Larimar ring you hold a unique one-of-a-kind piece of jewellery. No other willhold the same ring as you, since all the stones are unique and the silver rings are uniquely handmade for each ring.

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