The formation of our favourite gems, #geekingout.


Hiasan loves pretty little things, but one thing we love more is geeking out from time to time to learn new things: this week, we’ll explore how our three favourite gemstones turquoise, moonstone and peridot are made through natural processes (with the addition of some of technical speech – bear with us). However, before we continue, we would like to apologise for how long it has taken for this new article to come out – the summer sun and warm weather (as you all know, a severe rarity in this Arctic way of life) has been calling out to us too much these days!

So to begin, why do we love these three varieties of gemstones? Well,

  • moonstone is an obvious selection due to its magnificent sheen (caused by a phenomenon called adularescence that we will explain more thoroughly below),

  • peridot is a gem so beautiful and unique it is formation,

  • and lastly, turquoise has a gorgeous depth of colour, strong character and exciting history.

With that being said, we’ll start with moonstone and its formation processes. Moonstone is one of the three birthstones of the month of June and comprises two feldspar species; orthoclase and albite. 60% of the earth’s crust is made up of minerals in the feldspar family, which makes the raw materials for moonstone relatively abundant in nature, producing a much prettier (in our opinion) moonstone as a result of the earth’s processes. During formation, these orthoclase and albite separate into alternating layers, which results in the basis of the aforementioned adularescence. When light falls upon these layers, it is scattered in many directions, resulting in this sheen, or adularescence, that moonstone is so popularly known (and yearned) for. Hiasan has only one piece, our Rejuvenation necklace, including moonstone in our Taste of Spring collection. However, we are pretty sure we’ll be introducing more pieces after this article...


An image of our Rejuvenation necklace with moonstone.

Next, peridot is a gem that we have only newly fallen in love with, after working with it closely for our Taste of Spring collection. Peridot, the birthstone of the month of August, is the rarer gem variety of the otherwise abundant olivine, which comprises of two minerals; fayalite and forsterite. Peridot gets its colour from iron, and it is said that the best-coloured peridot has an iron percentage of less than 15% and includes some trace of nickel and chromium. The depth of colour of peridot relies on how much iron is contained in its crystal structure and it can range from yellow-green to olive or brownish-green. However, at the end of the day, it is one of the few gemstones that only come in one colour.

The formation of peridot is a unique one, as it, together with diamond, are the only two exceptions to be formed deep in the earth, in an area called the mantle, which lies below the earth’s crust. The mantle is an area of viscous magma, where peridot crystals form in this magma and rise to the surface through tectonic or volcanic activity, and then are finally found in resultant igneous rock (a.k.a cooled magma that has escaped onto the earth’s surface). Diamonds, on the other hand, are formed much deeper in the mantle, at extreme temperatures and pressures. Since peridot is sometimes referred to as “the poor man’s emerald,” we may just as well be poor men since we are loving this gem all the same!


A photo of our Moss earrings with peridot and rhodium-plated sterling silver.

Lastly, we’ll speak about turquoise. In one of our previous social media posts, we introduced Turquoise and how it derived its name from Turquie (French for Turkey) due to the belief that it was a mineral coming from Turkey. For thousands of years, the finest and most intense blue turquoise stones were found in Persia, and the term “Persian Turquoise” became associated with turquoise of only the finest quality. Turquoise is created through the percolation of meteoric or groundwater through aluminous rock in the presence of copper, resulting in its chemical composition: hydrated phosphate of copper and aluminium. Due to this, copper deposits are often found as secondary minerals in the production. It is often said that turquoise is perhaps the oldest significant stone in man’s history, often mentioned in tales of kings, warriors, and shamans. With the readiness and accessibility of turquoise in modern day jewellery, we’re convinced turquoise will continue in our storybooks well into the future.

Vitamin Sea (blog).jpg

A photo of our Vitamin Sea bracelet that comprises turquoise, amethyst and freshwater pearls.

We hope you have enjoyed this article as much as we did when we were researching about it! We like to keep things short and sweet and if you have any further questions or comments on it, please feel free to leave a comment below. Perhaps you have something in particular in mind that you would like us to write about? Again, feel free to drop a comment below. And remember ladies, learn about your jewellery because, well, it makes shopping more interesting that way!

P.S In case you’ve missed the announcement, we’re having a flash sale over this Midsummer, from the 21st to the 23rd of June, to celebrate this holiday! Use MIDSUMMER2018 at checkout to receive a discount of 20%. Don’t miss out to grab that piece of jewellery you’ve been eyeing for awhile now (and at a record low price, might we add)...


With Love,