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Post Info TOPIC: Moissanite
Blobrana


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Meteoritic stardust
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Title: Decoding the message from meteoritic stardust silicon carbide grains 
Authors: Karen M. Lewis, Maria Lugaro, Brad K. Gibson, Kate Pilkington 

Micron-sized stardust grains that originated in ancient stars are recovered from meteorites and analysed using high-resolution mass spectrometry. The most widely studied type of stardust is silicon carbide (SiC). Thousands of these grains have been analysed with high precision for their Si isotopic composition. Here we show that the distribution of the Si isotopic composition of the vast majority of stardust SiC grains carry the imprints of a spread in the age-metallicity distribution of their parent stars and of a power-law increase of the relative formation efficiency of SiC dust with the metallicity. This result offers a solution for the long-standing problem of silicon in stardust SiC grains, confirms the necessity of coupling chemistry and dynamics in simulations of the chemical evolution of our Galaxy, and constrains the modelling of dust condensation in stellar winds as function of the metallicity. 

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Blobrana


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RE: Moissanite
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When Alana and Lauren Chang's father returned home with some moissanite, a rare type of jewel found in meteorite deposits and diamond mines, the two sisters quickly recognised a business opportunity.

"We looked online to see where we could purchase some for Lauren's wedding, and found it was available in 70 countries but not Australia. There was no one distributing here, so we thought it should be us".
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Blobrana


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Diamonds are forever the shine is beautiful, but what about the style, and what if you don t have such a deep pocket? Still you want to experience the look and have the sheer glamour. In the twentieth century diamonds are pass . Amongst the other available alternatives moissanite rings make the best choice why? Moissanite rings are a very beautiful, classy, elegant and affordable alternative to diamond rings.

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Silicon carbide (SiC) is a ceramic compound of silicon and carbon that is manufactured on a large scale for use mainly as an abrasive (carborundum) but also occurs in nature as the extremely rare mineral moissanite.


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